HP TruCluster Server V5.1A

8/11/2019 HP TruCluster Server V5.1A

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H P T r u Cl u s t e r S e r v e r V 5 . 1 A

D e s c r i p t i o nHP T ruCluster Server Version 5.1A for HP T ru64 UNIX Version 5.1A, the latest in the new generation in the T ruCluster product line fromHP, provides highly available and scalable solutions for mission-critical computing environments. T ruCluster Server delivers powerful buteasy-to-use UNIX clustering capabilities.

By combining the advantages of symmetric multiprocessing (SMP), distributed computing, and fault resilience, a cluster running T ruClusterServer offers high availability while providing scalability beyond the limits of a single system. O n a single-system server, a hardware or software failure can severely disrupt a client's access to critical services. In a T ruCluster Server cluster, a hardware or software failure onone member system results in the other members providing these services to clients.

By extending single-system management capabilities to clusters, T ruCluster Server reduces the effort and complexity of cluster administration. It provides a clusterwide namespace for files and directories, including a single root file system that all cluster members

share. A common cluster address (cluster alias) for the Internet protocol suite (T CP/IP) makes the cluster appear as a single system to itsnetwork clients while load balancing client connections across member systems.

A single system image allows a cluster to be managed more easily than distributed systems. T ruCluster Server cluster members share asingle root file system and common system configuration files. T herefore, most management tasks need to be done only once for theentire cluster rather than repeatedly for each cluster member. T he cluster can be managed either locally from any of its members or remotely using T ru64 UNIX Web-based management tools. T ru64 UNIX and T ruCluster Server software, and applications, are installedonly once. Most network applications, such as the Apache Web server, need to be configured only once in the cluster and can bemanaged more easily in a cluster than on distributed systems.

A choice of graphical, Web-based, or command-line user interfaces makes management tasks easier for the administrator, flexible for those with large configurations, and streamlined for expert users.

T ruCluster Server facilitates deployment of services that remain highly available even though they have no embedded knowledge theyare running in a cluster. Applications can access their disk data from any cluster member. T ruCluster Server also provides the support for components of distributed applications to run in parallel, providing high availability while taking advantage of cluster-specifics y n c h r o n i z a t i o n m e c h a n i s m s a n d p e r f o r m a n c e o p t i m i z a t i o n s .

T ruCluster Server allows the processing components of an application to concurrently access raw devices or files, regardless of wherethe storage is located in the cluster. Member-private storage and clusterwide shared storage are equally accessible to all cluster members. Using either standard UNIX file locks or the distributed lock manager (DLM), an application can synchronize clusterwideaccess to shared resources, maintaining data integrity.

T ruCluster Server is an efficient and reliable platform for providing services to networked clients. T o a client, the cluster appears to be a

powerful single-server system; a client is impacted minimally, if at all, by hardware and software failures in the cluster.

T ruCluster Server simplifies the mechanisms of making applications highly available. A cluster application availability (CAA) facilityrecords the dependencies of, and transparently monitors the state of, registered applications. If a hardware or software failure prevents asystem from running a service, the failover mechanism automatically relocates the service to a viable system in the cluster, whichmaintains the availability of applications and data. Administrators can manually relocate applications for load balancing or hardwaremaintenance.

T CP-based and UDP-based applications can also take advantage of the cluster alias subsystem. T hese applications, depending on their

QuickSpecs HP TruCluster Server V5.1AO v e r v i e w

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specific characteristics, can ru n on a singl e cl u ster member or simu l taneou sl y on mu l tipl e members. The cl u ster al ias su bsystem rou tesclient requests to any member participating in that cluster alias. During normal operations, client connections are dynamically distributedamong multiple service instances according to administrator-provided metrics.

T r u C l u s t e r S e r v e r s u p p o r t s a v a r i e t y o f h a r d w a r e c o n f i g u r a t i o n s t h a t a r e c o s t - e f f e c t i v e a n d m e e t p e r f o r m a n c e n e e d s a n d a v a i l a b i l i t y

requ irements. Hardware configu rations can incl u de different types of systems and storage u nits, and can be set u p to al l ow easymaintenance. In addition, administrators can set u p hardware configu rations that al l ow the addition of a system or storage u nit withou ts h u t t i n g d o w n t h e c l u s t e r .

F o r t h e f a s t e s t c o m m u n i c a t i o n w i t h t h e l o w e s t l a t e n c y , u s e t h e P C I - b a s e d M e m o r y C h a n n e l c l u s t e r i n t e r c o n n e c t f o r c o m m u n i c a t i o nb e t w e e n c l u s t e r m e m b e r s . T r u C l u s t e r S e r v e r V e r s i o n 5 . 1 A a l s o s u p p o r t s t h e u s e o f 1 0 0 M b p s E t h e r n e t o r 1 0 0 0 M b p s E t h e r n e t h a r d was a private L AN cl u ster interconnect. The L AN interconnect is su itabl e for cl u sters with l ow-demand workl oads generated by a cl u ster r u nn i ng f ai l -o v er s t yl e , h i gh l y a v ai l ab l e a p pl i ca t io n s i n w h i ch t he r e i s l i m it e d a p pl i ca t io n d a t a b e in g sh a re d b e tw e en t h e n o de s o v er t h ecluster inter connect. R efer to the fir st chapter of the "Cluster LAN Inter connect" manual for a discussion of the mer its of each cluster interconnect.

Cl u ster members in a given cl u ster mu st al l u se Memory Channel or al l mu st u se L AN, bu t these interconnects cannot be mixed for cl u stc o m m u n i c a t i o n i n t h e s a m e c l u s t e r . U s i n g m u l t i p l e s h a r e d b u s e s a n d r e d u n d a n t M e m o r y C h a n n e l o r L A N i n t e r c o n n e c t h a r d w a r ep r o m o t es n o - s i ng l e - p o in t - o f - f ai l u r e ( N S P O F ) c h a r a ct e r i st i c s f o r m i s s i o n- c r i t ic a l a p p l i c at i o n s .

QuickSpecs HP TruCluster Server V5.1AOverview

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A T r u C l u s t e r S e r v e r c l u s t e r a c t s a s a s i n g l e v i r t u a l s y s t e m , e v e n t h o u g h i t i s m a d e u p o f m u l t i p l e s y s t e m s . C l u s t e r m e m b e r s c a n s h a r eresou rces, data, and cl u sterwide fil e systems u nder a singl e secu rity and management domain, yet they can boot or shu t downindependentl y withou t disru pting the cl u ster.

Cluster File System T he Cluster File System (CFS) makes all files, including the root (/), /usr, and /var file systems, visible toa n d a c c e s s i b l e b y a l l c l u s t e r m e m b e r s . I t d o e s n o t m a t t e r w h e t h e r a f i l e i s s t o r e d o n a d e v i c e c o n n e c t e dto al l cl u ster members or on one that is private to a singl e member. Each fil e system is served by a singl e-c l u s t e r m e m b e r ; o t h e r m e m b e r s a c c e s s t h a t f i l e s y s t e m a s C F S c l i e n t s w i t h s i g n i f i c a n t o p t i m i z a t i o n s f o r shared access. CF S preserves fu l l X /Open and P OSIX semantics for fil e system access and maintainscache coherency across cluster members. For instance, an application can use standard UNIX file locksto synchroniz e access to shared fil es.

CF S su pports the Advanced F il e System (AdvF S) for both read and write access and su pports AdvF S withBSD-type u ser and grou p qu otas. NF S cl ient and NF S server are su pported for both read and writeaccess, and NF S services are accessibl e to cl ients throu gh cl u ster al iases in addition to the defau l t cl u ster a l i a s . T h e U N I X F i l e S y s t e m ( U F S ) i s s u p p o r t e d f o r r e a d a n d w r i t e a c c e s s f r o m t h e C F S s e r v e r o r f o r r e a donl y access on cl ient members. The Memory F il e System (MF S) is su pported for read and write access onthe CFS server. T he CD-RO M File System (CDFS) and Digital Video Disc File System (DVDFS) ares u p p o r t e d f o r r e a d a c c e s s o n l y . F o r h i g h e r p e r f o r m a n c e , a p p l i c a t i o n s c a n u s e d i r e c t I / O t h r o u g h t h e f i l es ys te m t o b yp as s t he b uf fe r c ac he .

Device Request Dispatcher The device requ est dispatcher su pports cl u sterwide access to character and bl ock disk devices, and tot a p e a n d t a p e c h a n g e r d e v i c e s . A l l l o c a l a n d r e m o t e c l u s t e r d i s k a n d t a p e I / O p a s s e s t h r o u g h t h edevice requ est dispatcher. A member does not need a direct connection to a disk, or tape, or tapechanger device to access data on that device. T his permits great flexibility in selecting a hardware

configuration that is both economical and useful.

Cluster Alias A cl u ster al ias is an IP address that makes the cl u ster l ook l ike a singl e system to cl ients and other hosts ont h e n e t w o r k . C l u s t e r a l i a s e s f r e e c l i e n t s f r o m h a v i n g t o c o n n e c t t o s p e c i f i c m e m b e r s f o r s e r v i c e s . I f t h em e m b e r p r o v i d i n g t h e s e r v i c e g o e s d o w n , a c l i e n t r e c o n n e c t s t o a n o t h e r m e m b e r e l e c t e d b y t h e c l u s t e r alias to provide the service. With applications that run concurrently on multiple members, scaling isachieved by permitting mu l tipl e cl ients to connect to instances of the service on mu l tipl e cl u ster members,each using a cluster alias to address the service.

The cl u ster al ias su bsystem provides an optional virtu al MAC (vMAC) address that can be associated witheach cluster alias IP address. When configured, the same MAC address is used in all Address ResolutionProtocol (ARP) responses for the cluster alias address, independent of which cluster node is responding tocl u ster al ias ARP requ ests. This permits faster fail over when a new node assu mes responsibil ity for responding to cluster alias ARP requests.

QuickSpecs HP TruCluster Server V5.1AFeatures - TruCluster Server V5.1A



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Cluster ApplicationAvailability Facility

T h e c l us t er a p pl i ca t io n a v a il a b il i ty ( C A A) f a c i li t y d e l iv e rs t h e a b il i ty t o d e pl o y h i gh l y a v a il a b le s i ng l e

i n s t an c e a p p l ic a t i on s i n a c l u s t er b y p r o v id i n g r e s ou r c e m o n i t or i n g a n d a p p l i ca t i o n r e l o ca t i o n , f a i l ov e r ,and restart capabilities. CAA is used to define which members can run a service, the criteria under whichto relocate a service, and the location of an application-specific action script. Monitored resourcesinclude network adapters, tape devices, media changers, and applications. CAA allows services tomanage and monitor resources by using entry points within their action scripts. Applications do not needto be modified in any way to utilize CAA.

R o l li ng U p gr a d e Tru Cl u ster Server al l ows rol l ing u pgrade from the previou s version of the base operating system and theT ru Cl us te r s of tw ar e t o t he ne xt s ub se qu ent r el ea se o f t he b as e o p er at ing s ys te m a nd T ru Cl us te r s of tw ar e.al so al l ows the rol l ing of patches into the cl u ster. U pdating the operating system and cl u ster software doesnot requ ire a shu tdown of the entire cl u ster. A u til ity is provided to rol l the cl u ster in a control l ed andorderl y fashion. The u pgrade procedu re al l ows the monitoring of the statu s of the u pgrade whil e it is inprogress. Clients accessing services are not aware that a rolling upgrade is in progress.See the C l u s t e r I n s t a l l a t i o n m a n u a l f o r r e c o m m e n d e d a n d s u p p o r t e d p a t h s t o u p g r a d e o r r o l l t o t h e l a t e s t

ve r si on o f T r uC lu s te r S er ve r .

Cluster Management T he SysMan system management utilities provide a graphical view of the cluster configuration, and canbe u sed to determine the cu rrent state of avail abil ity and connectivity in the cl u ster. The administrator caninvoke management tool s from SysMan, al l owing the cl u ster to be managed l ocal l y or remotel y.

Clusterwide signaling allows applications to send UNIX signals to processes operating on other members.

PerformanceManagementThe performance management capabil ity of Tru 64 U NIX has been modified from one l arge performancem a n a g e m e n t t o o l ( p m g r ) t o s e v e r a l s m a l l e r a n d m o r e v e r s a t i l e t o o l s . T h e p e r f o r m a n c e m a n a g e m e n t t o o l

s u i t e c o n s i s t s o f : C o l l e c t , C o l l g u i , a n d t h e t w o S N M P a g e n t s p m g r d a n d c l u _ m i b s .

Col l ect is a tool that col l ects operating system and process data u nder HP Tru 64 U NIX Versions 4.x and5 . x . A n y s u b s e t o f t h e ' s u b s y s t e m s ' ( P r o c e s s , M e m o r y , D i s k , L S M V o l u m e s , N e t w o r k , C P U , F i l e s y s t e m s ) ,a n d H e ad e r c a n b e d e fi n ed fo r w h ic h d a ta is t o b e c o l le c te d . C o ll e ct i s d e si g ne d f o r h i gh re l ia b il i ty an dlow system-resource overhead. Accompanying collect are two highly integrated tools, collgui, a graphicalf r o n t - e n d , a n d c f i l t , w h i c h a l l o w s c o m p l e t e l y a r b i t r a r y e x t r a c t i o n o f d a t a f r o m t h e o u t p u t o f c o l l e c t t ostandard output. collgui is a laborsaving tool that allows a user to quickly analyze collect data. T heP e r f o r m a n c e M a n a g e r m e t r i c s s e r v e r ( p m g r d ) i s a U N I X d a e m o n p r o c e s s t h a t p r o v i d e s g e n e r a l U N I Xp e r f o r m a n c e m e t r i c s o n r e q u e s t . T h e p m g r d m e t r i c s s e r v e r s u p p o r t s t h e e x t e n s i b l e S i m p l e N e t w o r kManagement P rotocol (SNMP ) agent mechanism (eSNMP ).

Cluster MIB T r u C l u s t e r S e r v e r s u p p o r t s t h e H P C o m m o n C l u s t e r M I B . T h e H P I n s i g h t M a n a g e r u s e s t h i s C l u s t e r M I B t od i s c o v e r c l u s t e r m e m b e r r e l a t i o n s h i p s , a n d t o p r o v i d e a c o h e r e n t v i e w o f c l u s t e r e d s y s t e m s a c r o s ss u p p or t e d p l a tf o r m s.




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Highly Available NFSServer

When configu red as an NF S server, a Tru Cl u ster Server cl u ster can provide highl y avail abl e access to thef i l e s y s t e m s i t e x p o r t s . T h e r e a r e n o s p e c i a l c l u s t e r m a n a g e m e n t o p e r a t i o n s r e q u i r e d t o c o n f i g u r e t h ecl u ster as a highl y avail abl e NF S server. In the event of a system fail u re, another cl u ster member wil lb e c o m e t h e N F S s e r v e r f o r t h e f i l e s y s t e m , t r a n s p a r e n t t o e x t e r n a l N F S c l i e n t s . N F S f i l e l o c k i n g i ss u p p o r t e d , a s a r e b o t h N F S V 2 a n d V 3 w i t h U D P a n d T C P .

Tr uCluster Ser ver allows NFS file systems to be ser ved fr om the cluster thr ough both the default cluster aliaand al ternate al iases. Al ternate cl u ster al iases can be defined to l imit NF S server activity to thosem e m b e r s t h a t a r e a c t u a l l y c o n n e c t e d t o t h e s t o r a g e t h a t c o n t a i n s t h e e x p o r t e d f i l e s y s t e m s . N F S c l i e n t sc a n u s e t h i s a l t e r n a t e a l i a s w h e n t h e y m o u n t t h e f i l e s y s t e m s s e r v e d b y t h e c l u s t e r .

Fast File SystemRecoveryT he Advanced File System (AdvFS) log-based file system provides higher availability and greater flexibilityt h a n t r a d i t i o n a l U N I X f i l e s y s t e m s . A d v F S j o u r n a l i n g p r o t e c t s f i l e s y s t e m i n t e g r i t y . T r u C l u s t e r S e r v e r s u p p o r t sA d v F S f o r b o t h r e a d a n d w r i t e a c c e s s .

An optional , separatel y l icensed produ ct, the Advanced F il e System U til ities, performs onl ine fil e systemm a n a g e m e n t f u n c t i o n s . S e e t h e O P T I O N A L S O F T W A R E s e c t i o n o f t h i s d o c u m e n t f o r m o r e i n f o r m a t i o n o nthe AdvF S u til ities.

IncreasedData IntegrityTru 64 U NIX L ogical Storage Manager (L SM) is a cl u ster-integrated, host-based sol u tion to data storagem a n a g e m e n t . I n a T r u C l u s t e r S e r v e r c l u s t e r , L S M o p e r a t i o n s c o n t i n u e d e s p i t e t h e l o s s o f c l u s t e r m e m b e r s ,as long as the cluster itself continues operation and a physical path to the storage is available. LSM diskgroups can be used simultaneously by all cluster members and the LSM configuration can be managedf ro m a ny c lu st er m em be r.

B a s i c L S M f u n c t io n a l it y , i n c l u di n g d i s k s p a n ni n g a n d c o n c a t en a t i on , i s p r o v id e d w i t h t h e T r u 6 4 U N IXoperating system. Extended functions, such as striping (RAID 0), mirroring (RAID 1), and onlinemanagement, are available with a separate license. Mirroring of LSM is RAID Advisory Board (RAB)c e r t i f ie d f o r R A I D L e v e ls 0 a n d 1 .

LSM is supported for use in a T ruCluster Server cluster and will support any volume in a cluster, includingswap and cluster root and excluding the quorum disk and member boot disks. Hardware mirroring issu pported for al l vol u mes in a cl u ster withou t exception.

L SM RAID 5 vol u mes are not su pported in cl u sters. See the OP TIONAL SOF TWARE section of thisd o c u m e n t f o r m o r e i n f o r m a t i o n o n L S M .

Global Error Logger &Event Manager

T r u C l u s t e r S e r v e r c a n l o g m e s s a g e s a b o u t e v e n t s t h a t o c c u r i n t h e T r u C l u s t e r e n v i r o n m e n t t o o n e o r m o r esystems. Cl u ster administrators can al so receive notification throu gh el ectronic mail when critical probl emsoccur.




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Cluster Storage I/OFailover

T r u C l u s t e r S e r v e r p r o v i d e s t w o l e v e l s o f p r o t e c t i o n i n t h e e v e n t o f s t o r a g e i n t e r c o n n e c t f a i l u r e . W h e nconfigured with redundant storage adapters, the storage interconnect will be highly available. Shouldone interconnect fail , traffic wil l transparentl y fail over to the su rviving adapter. When a member system isconnected to shared storage with a singl e storage interconnect and it fail s, transactions are transparentl yp e r f o r m e d v i a t h e c l u s t e r i n t e r c o n n e c t t o a n o t h e r c l u s t e r m e m b e r w i t h a w o r k i n g s t o r a g e i n t e r c o n n e c t .

Cluster Client NetworkFailover

Tru Cl u ster Server su pports highl y avail abl e cl ient network interfaces via the Tru 64 U NIX redu ndant arrayo f i n d e p e n d e n t n e t w o r k a d a p t e r s ( N e t R A I N ) f e a t u r e .

Cluster InterconnectFailover

Tru Cl u ster Server al l ows the el imination of the cl u ster interconnect as a singl e point of fail u re by su pportingredundant cluster interconnect hardware. Y ou can configure dual-rail Memory Channel, allowing thecl u ster to su rvive the fail u re of a singl e rail . F or L AN interconnect, two or more network adapters on eachmember are configu red as a NetRAIN virtu al interface. When properl y configu red across two or moreswitches, the cluster will survive any LAN component failure. T his not only guards against rare network

hardware fail u res, bu t al so facil itates the u pgrade and maintenance of the network withou t disru pting thecluster.

Support for ParallelizedDatabase Applications

Tru Cl u ster Server provides the software infrastru ctu re to su pport paral l el iz ed database appl ications, su cha s O r a c l e P a r a l l e l S e r v e r ( O P S ) a n d I n f o r m i x E x t e n d e d P a r a l l e l S e r v e r ( X P S ) t o a c h i e v e h i g h p e r f o r m a n c eand high availability. O PS and XPS are offered and supported separately by O racle Corporation andI n f o r m i x S o f t w a r e , I n c . , r e s p e c t i v e l y .

DistributedLockManager The distribu ted l ock manager (DL M) synchroniz es access to resou rces that are shared among cooperatingprocesses throu ghou t the cl u ster. DL M provides a software l ibrary with an expansive set of l ock modes

that applications use to implement complex resource-sharing policies. DLM provides services to notify aprocess owning a resource that it is blocking another process requesting the resource. An application canal so u se DL M rou tines to efficientl y coordinate the appl ication's activities within the cl u ster.

Support for MemoryC h a n ne l AP I

T ruCluster Server provides a special application programming interface (API) library for high-performancedata delivery over Memory Channel by giving access to Memory Channel data transfer and lockingf u nc t io n s. T h is M e m or y C h a nn e l A P I l i br a ry e n a b le s h i gh l y o p ti m i ze d a p p li c at i on s t h at r e qu i re h i gh -performance data del ivery over the Memory Channel interconnect. This l ibrary is su pported sol el y for u sewith Memory Channel .

High performance within the cluster is achieved by providing user applications with direct access to thecapabilities of the Memory Channel. For example, a single store instruction on the sending host iss u f f i c i e n t f o r t h e d a t a t o b e c o m e a v a i l a b l e f o r r e a d i n g i n t h e m e m o r y o f a n o t h e r h o s t .

The Memory Channel AP I l ibrary al l ows a programmer to create and control access to regions of thecl u sterwide address space by specifying U NIX styl e protections. Access to shared data can bes y nc h ro n iz e d u s in g M e m o ry C h a n ne l s p in l o c ks f o r c l us t er w id e l o ck i ng .

T h e M e m o ry C h a n n e l A P I l i b r ar y f a c i l it a t e s h ig h l y o p t i m iz e d i m p l e m en t a t i o ns o f P a r a l l el V i r t u al M a c h i n e( P V M ) , M e s s a g e P a s s i n g I n t e r f a c e ( M P I ) , a n d H i g h P e r f o r m a n c e F o r t r a n ( H P F ) , p r o v i d i n g s e a m l e s s




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s c a l a b i l i t y f r o m S M P s y s t e m s t o c l u s t e r s o f S M P m a c h i n e s . T h i s p r o v i d e s t h e p r o g r a m m e r w i t hc o m p r e h e n s i v e a c c e s s t o t h e c u r r e n t a n d e m e r g i n g d e f a c t o s t a n d a r d s o f t w a r e d e v e l o p m e n t t o o l s f o r p a ra l le l a p pl i ca t io n s w h i le s u pp o rt i ng p o rt a bi l it y o f e x is t in g a p pl i ca t io n s w i th o ut s o ur c e c o de c h an g es .

Note to u sers of the Memory Channel AP I V1.6 produ ct on Tru 64 U NIX Version 4.0*:O n T r u 6 4 U N I X V 5 . * , t h e T r u C l u s t e r M e m o r y C h a n n e l S o f t w a r e V 1 . 6 p r o d u c t i s b u n d l e d a s a f e a t u r e o fTru Cl u ster Server V5.*. To ru n the Memory Channel AP I l ibrary on Tru 64 U NIX version 5.1A, you mu stinstal l a Tru Cl u ster Server l icense to configu re a val id Tru Cl u ster Server cl u ster.

N o t e t o u s e r s o f t h e M e m o r y C h a n n e l a p p l i c a t i o n p r o g r a m m i n g i n t e r f a c e ( M C A P I ) w i t h M e m o r yC h a n n el v i r t ua l h u b ( v h u b) c o nf i g u ra t i o n :The Memory Channel AP I is not su pported for data transfers l arger than 8K bytes when l oopback mode isenabl ed in two member cl u sters configu red with MC virtu al hu b. F or more information on l oopback modeg o t o http://www.tru 64u nix.hp.com/docs/u pdates/TCR51A/TITL E.HTM a nd r e f e r t o t h e2 1 . M a r . 2 0 0 2 T e c h n i c a l U p d a t e t i t l e d " M C A P I A p p l i c a t i o n s M a y N o t U s e T r a n s f e r s L a r g e r T h a n 8 K Bw i t h L o o p b a c k M o d e E n a b l ed o n C l u s t er s U t i l i z in g V ir t u a l H u b s ."

C o n n e c t io n Ma n a g e r T h e c o n n e c t i o n m a n a g e r i s a d i s t r i b u t e d k e r n e l c o m p o n e n t t h a t e n s u r e s t h a t c l u s t e r m e m b e r s c o m m u n i c a t ew i t h e a c h o t h e r a n d e n f o r c e s t h e r u l e s o f c l u s t e r m e m b e r s h i p . T h e c o n n e c t i o n m a n a g e r f o r m s a c l u s t e r ,a n d a d d s a n d r e m o v e s c l u s t e r m e m b e r s . I t t r a c k s w h e t h e r m e m b e r s i n a c l u s t e r a r e a c t i v e a n d m a i n t a i n sa c l u s t e r m e m b e r s h i p l i s t t h a t i s c o n s i s t e n t o n a l l c l u s t e r m e m b e r s .

Support for FibreChannelSolutions

Tru Cl u ster Server su pports the u se of switched F ibre Channel storage and F ibre Channel Arbitrated L oop.F i b r e C h a n n e l p r o v i d e s t h e f o l l o w i n g b e n e f i t s o v e r p a r a l l e l S C S I s t o r a g e :

Greater performanceGreater scalability

More reliability, serviceability, and availabilityF ibre Channel can be u sed for cl u sterwide shared storage, cl u ster fil e systems, swap partitions, and bootdisks. Compared to parallel SCSI storage, Fibre Channel is easier to configure and its long distancepermits greater flexibility in configurations.

Compared with a switched F ibre Channel topol ogy, Arbitrated L oop offers a l ower cost sol u tion byt r a d i n g o f f b a n d w i d t h , a n d t h e r e f o r e s o m e p e r f o r m a n c e . A r b i t r a t e d L o o p i s s u p p o r t e d f o r t w o - m e m b e r c o n f i gu r a t io n s o n l y .

For more information on supported T ruCluster Server configurations and specific cabling restrictions usingF ibre Channel , see the Cl u ster Hardware Configu ration manual at the following URL:http://tru 64u nix.hp.com/docs/pu b_page/cl u ster_l ist.html

EnhancedSecurity withDistributedAuthentication

Tru Cl u ster Server su pports the Enhanced Secu rity option on al l cl u ster members. This incl u des su pport for features for enhanced login checks and password management. Audit and access control list (ACL)su pport can al so be enabl ed independentl y of the Enhanced Secu rity option on cl u ster members.



http://www.tru64unix.hp.com/docs/updates/TCR51A/TITLE.HTMhttp://tru64unix.hp.com/docs/pub_page/cluster_list.htmlhttp://tru64unix.hp.com/docs/pub_page/cluster_list.htmlhttp://tru64unix.hp.com/docs/pub_page/cluster_list.htmlhttp://www.tru64unix.hp.com/docs/updates/TCR51A/TITLE.HTMhttp://www.tru64unix.hp.com/docs/updates/TCR51A/TITLE.HTM


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Software RequirementsTru Cl u ster Server Version 5.1A requ ires the Tru 64 U NIX Version 5.1A operating system. The Tru 64 U NIXoperating system is a separatel y l icensed produ ct. See the Tru 64 U NIX operating system Qu ickSpec for m o r e i n f o r m a t i o n .

T r u C l u s t e r S e r v e r V e r s i o n 5 . 1 A r e q u i r e s t h a t a d d i t i o n a l s o f t w a r e s u b s e t s b e i n s t a l l e d . S e e t h e T r u C l u s t e r Server Software Instal l ation manu al for more information.

SoftwareConfigurationRequirements

" When configu ring Tru Cl u ster Server software an additional 64 MB of memory is requ ired on eachmember system." E a c h s y s t e m r e q u i r e s a d i s k f o r a m e m b e r b o o t d i s k a n d t h e c l u st e r r e q u i r e s a m i n i m um o f o n edisk for cl u sterwide root, /u sr, and /var fil e systems. A qu oru m disk is optional . See the Tru Cl u ster Server Cl u ster Hardware Configu ration manu al for detail s. F ree disk space requ ired for u se( p e r m a n e n t ) : 5 2 M B t o l o a d T r u C l u s t e r S e r v e r s o f t w a r e o n t o a T r u 6 4 U N I X s y s t e m d i s k .

These are approximate; actu al siz es may vary depending on the system environment, configu ration, and

s o f t wa r e o p t io ns

Growth ConsiderationsT h e m i n i m u m h a r d w a r e a n d s o f t w a r e r e q u i r e m e n t s f o r a n y f u t u r e v e r s i o n o f t h i s p r o d u c t m a y b e d i f f e r e n tf ro m t he r eq ui re me nt s f or t he c ur re nt ve rs io n.

A rol l ing u pgrade to the next version of the cl u ster software requ ires the fol l owing:

At l ea st 5 0 p er ce nt f re e s pa ce i n r oo t ( /) , c lu st er _r oo t# ro otA t l e a s t 5 0 p e r c e n t f r e e s p a c e i n / u s r , c l u s t e r _ u s r # u s r A t l e a s t 5 0 p e r c e nt f r e e s p a c e i n / v a r , c l u s t e r _ va r # v a r , p l us a n a d d i t i o n a l 4 2 5 M B t o h o l d t h es u b s e t s f o r t h e n e w v e r s i o n o f t h e T r u 6 4 U N I X o p e r a t i n g s y s t e mAt l east 50 percent free space in /u sr/i18n, cl u ster_i18n#i18n when u sed

QuickSpecs HP TruCluster Server V5.1AC o n f i g u r a t i o n



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T ruCluster Server V5.1A licenses include:

Systems TruCluster Plus packages* TruCluster Server License TruCluster ServerMigrationLicense**

AlphaServer 8 00, 1000A, 1200,DS10, DS20, DS20E QP- 6R9 AC- AA QL-6 BRAC-AA QL- 6 J1AC- AA

Al phaServer ES40 QP-6 R9AE -AA QL-6 BRAE -AA QL-6 J1AE -AA

AlphaServer 2000, 2100,2100A, 4000, 4100, GS60E,G S80

QP- 6 R9 AG -AA QL- 6BRAG-AA QL-6 J1AG-AA

AlphaServer 8 200, 8 400, GS60,G S140, G S160, G S320

QP-6 R9AQ-AA QL-6BRAQ-AA QL-6 J1AQ-AA

Software Docu mentation: QA-6BRAA-G Z*Tru Cl u ster P l u s Software packages incl u de l icenses for Tru Cl u ster Server, L ogical Storage Manager, and AdvF S U til ities.**If you cu rrentl y have a Tru Cl u ster Avail abl e Server or Tru Cl u ster P rodu ction Server l icense and want to convert it to a Tru Cl u ster Server license, use the QL-6J1A*-AA migration license.

Software Licensing Tru Cl u ster Server is l icensed as a standard HP software l ayered produ ct and is provided onl y u nder al i c e n s e . E a c h s y s t e m i n t h e T r u C l u s t e r S e r v e r e n v i r o n m e n t r e q u i r e s s e p a r a t e T r u 6 4 U N I X a n d T r u C l u s t e r Server l icenses. Hard partitions of G S80, G S160 and G S320 can be cl u stered together either acrosss e p a r a t e s y s t e m s o r w i t h i n s y s t e m s a n d o n l y o n e T r u C l u s t e r l i c e n s e i s r e q u i r e d p e r s y s t e m . F o r m o r einformation abou t the HP l icensing terms and pol icies, contact you r l ocal HP representative or resel l er.

This produ ct su pports the Tru 64 U NIX L icense Management F acil ity (L MF ). L icense u nits for the Tru Cl u ster Server produ ct are al l ocated on an u nl imited-system-u se basis.

F o r m o r e i n f o r m a t i o n o n t h e L i c e n s e M a n a g e m e n t F a c i l i t y , s e e t h e T r u 6 4 U N I X O p e r a t i n g S y s t e mQu ickSpec or the Tru 64 U NIX operating system docu mentation.

D is t r i b u t i o n M e di a Tru Cl u ster Server is a separatel y l icensed produ ct and is distribu ted on the Tru 64 U NIX AssociatedProducts Volume 2 CD-RO M. T he T ruCluster Documentation is available on-line athttp://www.tru 64u nix.hp.com/docs/ .

SoftwareProduct ServicesA variety of service options are avail abl e from HP . F or more information, contact you r l ocal HP servicerepresentative.

QuickSpecs HP TruCluster Server V5.1AO r d e r i n g I n f o r m a t i o n


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HP Advanced Server for UNIX ( A S U )

HP Advanced Server for UNIX (ASU) provides Windows networking services, such as file sharing, printsharing, and security for T ru64 UNIX. In addition to basic file and print services, ASU provides fullWindows domain control l er su pport, su pport for enterprise-wide tru st rel ationships, and su pport for W i nd o ws s e cu r it y - i nc l ud i ng f i l e p e rm i ss io n s a n d W i nd o ws l o ca l a n d g l ob a l g r ou ps .

Additionally, you can manage users, file shares, and printers using native Windows administrative tools.When combined with T ruCluster Server software, ASU provides highly available and highly scalable fileshares, print shares, and even P rimary Domain Control l er resou rces to Windows cl ients. F or moreinformation on ASU , visit the HP Advanced Server for U NIX Web site at:w w w . t r u 6 4 u n ix . h p . c o m / p ro d u c t s / a d v _ s e rv e r

LegatoNetWorker See the NetWorker Read This F irst l etter for information on eval u ating or pu rchasing a version ofNe t Wo r ke r t h a t s u pp o r ts T r uC lu s te r S er ve r .

SANwork DataR e p l ic a t i o n Ma n a g e r b yHP

SANworks Data Replication Manager (DRM) is controller-based data replication software for disaster tol erance and data movement sol u tions. DRM works with the new StorageWorks F ibre ChannelM A 8 0 0 0 / E M A 1 2 0 0 0 S t o r a g e S o lu t i o n s b y H P . T h e R A I D A rr a y 8 0 0 0 ( R A 8 0 00 ) a n d E nt e r p r i seS t o r a g e A r r a y 1 2 0 0 0 ( E S A 1 20 0 0 ) a r e a l s o s u p p o r te d .

Multiple clusters or standalone systems can be connected using DRM to replicate application data. DRMw i t h i n a s i n g l e c l u s t e r i s s u p p o r t e d o n l y t h r o u g h C u s t o m S p e c i a l S y s t e m s ' " C a m p u s - W i d e D i s a s t e r T o l e r a n tC l us t e r" p r o du c t o f f e ri ng .

F or more information abou t DRM, see the SANworks Data Repl ication Manager Qu ickSpec. F or moreinformation abou t the Campu s-Wide DisasterTol erant P rodu ct, see

h t t p : / / w w w . h p . c o m / s o l u t i o ns / c u s t o m s y s t e m s / h a / t r u 6 4 _ c a m p u s _ c lu s t e r s . h t m l.

Advanced File System(AdvFS) Utilities

T he Advanced File System (AdvFS) log-based file system provides flexibility, compatibility, highavailability, and high performance for files and filesets, up to 16 terabytes (T B). Administrators can add,remove, reconfigu re, tu ne, and defragment fil es - and back u p storage - withou t u nmou nting the fil esystem or hal ting the operating system. By su pporting mu l tivol u me fil e systems, AdvF S enabl es fil e-l evelstriping to improve fil e transfer rates, and integrates with the fu nctional ity provided by the L ogical StorageM a n a g e r ( L S M ) .

A graphical user interface simplifies management tasks to dynamically resize file systems, load balance,undelete files, and clone files for hot backup.

The AdvF S U til ities is a separatel y l icensed software produ ct for Tru 64 U NIX . See the AdvF S U til itiesQ u i c k S p e c f o r m o r e i n f o r m a t i o n .

QuickSpecs HP TruCluster Server V5.1AOptional Software

D A - 1 0 5 1 4 W o r l d w i d e Q u i ck S p e c s — V e r s i o n 17 — 9 / 4 / 2 0 0 3 P a g e 1 0

http://www.tru64unix.hp.com/products/adv_serverhttp://www.hp.com/solutions/customsystems/ha/tru64_campus_clusters.htmlhttp://www.hp.com/solutions/customsystems/ha/tru64_campus_clusters.htmlhttp://www.hp.com/solutions/customsystems/ha/tru64_campus_clusters.htmlhttp://www.tru64unix.hp.com/products/adv_server


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L o g ic a l S t o r a g e Ma n a g e r (LSM)

The Tru 64 U NIX L ogical Storage Manager (L SM) is an integrated, host-based sol u tion to data storagemanagement. Concatenation, striping, mirroring, hot-sparing, and a graphical user interface allow datas t o r a g e m a n a g e m e n t f u n c t i o n s t o b e d o n e o n l i n e , w i t h o u t d i s r u p t i n g u s e r s o r a p p l i c a t i o n s . L S M m a n a g e sstorage as a single entity in both cluster and single node environments. LSM is a separately licensedsoftware produ ct for Tru 64 U NIX . F or more information, see the L ogical Storage Manager Qu ickSpec.

StorageWorks SoftwareT h e S t o r a g e W o r k s S o f t w a r e p a c k a g e i n c l u d e s t h e l i c e n s e s f o r T r u 6 4 U N I X L o g i c a l S t o r a g e M a n a g e r and the Advanced F il e System U til ities. The part nu mber for the StorageWorks software package is QB-5RXA*-AA.

TruCluster Plus SoftwareThe Tru Cl u ster P l u s Software package incl u des the l icenses for Tru Cl u ster Server, Tru 64 U NIX L ogicalS t o r a g e M a n a g e r , a n d t h e A d v a n c e d F i l e S y s t e m U t i l i t i e s . T h e p a r t n u m b e r f o r t h e T r u C l u s t e r P l u ssoftware package is QP-6R9A*-AA.

ServiceTools - WEBES WEB-Based Enterprise Service (WEBES) tool s integrate a high avail abil ity system fau l t managementarchitecture, Distribu ted Enterprise Service Tool s Architectu re (DESTA), with HP s architectu re for distribu ted,W e b - B a s e d S y s t e m M a n a g e m e n t . T h e t o o l f u n c t i o n a l i t y c o n t a i n e d i n t h e W E B E S k i t i n c l u d e s t h efollowing: HP Analyze (symptom directed hardware diagnosis tool), HP Crash Analysis T ool [CCAT ]( s y m p t o m d i r e c t e d o p e r a t i n g s y s t e m s o f t w a r e d i a g n o s i s t o o l ) , a n d R e v i s i o n a n d C o n f i g u r a t i o nManagement [RCM] tool (col l ects system configu ration and revision data).

HP Anal yz e is a hardware diagnosis software tool that provides anal ysis for singl e errors or fau l t events ata rudimentary level, as well as multiple event and complex analysis. HP Analyze provides automaticnotification and isol ation of hardware components to qu ickl y identify areas of the system that may behaving probl ems. HP Anal yz e is the su ccessor to DECevent and su pports the newer EV6 based systems.

Re fe r t o t he r ele as e no te s f or t he p ro du ct s t ha t a re s up po rt ed.

CCAT is a software appl ication tool that hel ps service engineers and system managers to anal yz eo p e r a t i n g s y s t e m c r a s h e s . T h i s t o o l c o l l e c t s d a t a t h a t d e s c r i b e s s y s t e m c r a s h e s a n d m a t c h e s t h a t d a t aagainst a set of operating specific rules.

The RCM tool col l ects system configu ration and revision data information. The data is stored in the RCMServer at HP Services and the server is then u sed to create detail ed revision and configu ration reports.

Oracle Parallel Server (OPS)

O r a c l e P a r a l l e l S e r v e r ( O P S ) t e c h n o l o g y i s a r e l a t i o n a l d a t a b a s e m a n a g e m e n t s y s t e m t h a t c a p i t a l i z e s o nthe benefits of high availability, performance, and expandability made possible by T ru64 UNIX clusters.

Oracl e P aral l el Server mu st be ordered separatel y throu gh Oracl e Corporation.

Informix Dynamic Server Informix Dynamic Server with the Extended Parallel O ption delivers high performance while supportingcommercially available cluster systems used for data warehousing and decision support applications.I n f o r m i x D y n a m i c S e r v e r w i t h t h e E x t e n d e d P a r a l l e l O p t i o n m u s t b e o r d e r e d t h r o u g h I n f o r m i x S o f t w a r e ,Inc.




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S u p p o r t e d S y s t e m s a nd C l u s t e r I n te r c o n ne c t Ha r dw a r e Re q u i r e m e nt sTru Cl u ster Server Version 5.1A su pports the systems l isted in the fol l owing tabl e with u p to eight systems in a configu ration.T ruCluster Server Version 5.1A supports the KZ PSA-BB, KZ PBA-CB, KZ PBA-CC, 3X-KZ PEA-DB, KGPSA-BC, KGPSA-CA, and KGPSA-D A a s s h a r e d s t o r a g e b u s a d a p t e r s , s u b j e c t t o t h e c u r r e n t m a x i m u m n u m b e r o f a d a p t e r s a n d a n y o t h e r r e s t r i c t i o n s f o r a g i v e n s y s t e m .

Tru Cl u ster Server su pports a maximu m of 62 shared bu ses in any combination. Information on firmware rel ease can be fou nd ath t t p : / / w w w . h p . c o m / s u p p o r t / o r f r o m t h e c u r r e n t A l p h a s y s t e m s f i r m w a r e u p d a t e C D R O M .

SupportedSystems

System Shared Storage IOAdapter Cluster Interconnect3

Al p ha Ser ver 8 00 KZPSA, KZPBA- CB /CC, KGPSA M C 1, 1.5 & 2 , 100 M b p s & 1000 M b psLAN

AlphaServer 1000A KZPSA M C 1 .5 , 10 0 M b p s & 1 00 0 M b p s L A N

Al p ha Serv er 12 00 KZPSA, KZPBA- CB /CC, KGPSA M C 1, 1.5 & 2 , 100 M b p s & 1000 M b psLAN

AlphaServer 2000 KZPSA M C 1 , 1. 5 , 10 0 M b p s & 1 0 00 M b p s L A N

AlphaServer 2100 KZPSA M C 1 , 1. 5 , 10 0 M b p s & 1 0 00 M b p s L A N

AlphaServer 2100A KZPSA M C 1 , 1. 5 , 10 0 M b p s & 1 0 00 M b p s L A N

AlphaServer 4000, 4100 KZ PSA, KZ PBA-CB/CC, KGPSA M C 1 , 1 . 5 & 2 , 10 0 M b p s & 1 00 0 M b p sLAN

AlphaServer 8 200 KZ PSA, KZ PBA-CB/CC, KGPSA M C 1 , 1 . 5 & 2 , 10 0 M b p s & 1 00 0 M b p sLAN

AlphaServer 8 400 KZ PSA, KZ PBA-CB/CC, KGPSA M C 1 , 1 . 5 & 2 , 10 0 M b p s & 1 00 0 M b p sLAN

AlphaServer DS10 KZPBA-CB/CC, KG PSA, KZPEA-DB1 M C 2 , 1 0 0 M b p s & 10 0 0 M b p s L A N ,DEGXA-SA/T A

Alp ha Server DS10L KZPBA- CB / CC 100 Mb ps L AN

Al ph aServ er DS2 0, DS2 0E KZPBA- CB/ CC, KGPSA M C 2 , 100 M bp s & 1000 M bp s L A N ,DEGXA-SA/T A

Al pha Serv er DS2 5 KZ PB A- CC, KGPSA-CA/ DA M C 2 , 100 Mbp s & 1000 Mbp s L A N 2,DEGXA-SA/T A

T S20 4 KZ PBA- CB/CC, KGPSA- CA/ DA 100 M bps & 1000 M bp s L AN

Al phaServer ES40 KZ PBA-CB/CC, KGPSA1 M C 2 , 1 0 0 M b p s & 10 0 0 M b p s L A N

Al phaServer ES45 KZPBA-CB/CC, KG PSA, KZPEA-DB1 MC2 (see notes), 100 Mbps & 1000M b p s L A N , D E G X A- S A / T A

Al phaServer G S60, G S60E KZ PSA, KZ PBA-CB/CC, KGPSA M C 1 , 1 . 5 & 2 , 10 0 M b p s & 1 00 0 M b p sLAN

Al phaServer G S80 KZPBA- CB/ CC, KGPSA- CA M C 2 , 100 M bp s & 1000 M bp s L A N

Al phaServer G S140 KZ PSA, KZ PBA-CB/CC, KGPSA M C 1 , 1 . 5 & 2 , 10 0 M b p s & 1 00 0 M b p sLAN

Al phaServer G S160 KZ PBA-CB/CC, KGPSA-CA M C 2 , 1 0 0 M b p s & 10 0 0 M b p s L A N

Al phaServer G S320 KZ PBA-CB/CC, KGPSA-CA M C 2 , 1 0 0 M b p s& 10 0 0 M b p s L A N



http://www.hp.com/support/http://www.hp.com/support/http://www.hp.com/support/


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NOTES:

H a r d p a r t i t i o n s o f G S 8 0 , G S 1 6 0 , a n d G S 3 2 0 c a n b e c l u s t e r e d t o g e t h e r e i t h e r a c r o s s s e p a r a t e s y s t e m s o r w i t h i n s y s t e m s , b u teach hard partition mu st have at l east one cl u ster interconnect connection.Tru Cl u ster Server Version 5.1A requ ires al l members to be connected with either al l members u sing Memory Channel

h a r d w a r e o r a l l m e m b e r s u s i n g a p r i v a t e 1 0 0 M B o r 1 0 0 0 M b p s f u l l d u p l e x L A N . N o t e t h a t t h e r e a r e t w o v a r i a n t s o f M e m o r yChannel (MC):ES45 supports single rail Memory Channel (MC) configured for either 512 MB or 128 MB, and it supports dual rail MC onlya t 1 2 8 M B .The u se of the MC AP I is not su pported in a two-member cl u ster containing an Al phaServer ES45 and configu red with MemoryC h a n n e l i n v i r t u a l h u b m o d e . T o u s e t h e M C A P I i n a t w o - m e m b e r c l u s t e r c o n t a i n i n g a n A l p h a S e r v e r E S 4 5 , a M e m o r yChannel hub must be configured for each rail.F or fu rther information on depl oying an ES45 in a Tru Cl u ster, pl ease refer to the Cluster Hardware Configuration T echnicalU p d a t e f o r t h e A l p h a S e r v e r E S 4 5 which resides in the repository fou nd athttp://www.tru 64u nix.hp.com/docs/pu b_page/cl u ster_l ist.html

KZ PEA-DB is supported for configuring a shared bus in a T ruCluster with a maximum of two members per shared bus. Special

P atch Kit is requ ired. P l ease check the specific pl atform Su pported Options L ists to see if a particu l ar pl atform is su pported.

1.

The embedded G igabit Ethernet adapter (10/100/1000Mbps) on the DS25 is su pported by Tru Cl u ster Server as a L ANcluster interconnect if patch kit 4 is installed.

2.

3X -DEG X A-SA/TA G igabit Ethernet adapter is su pported by Tru Cl u ster Server as a L AN cl u ster interconnect if patch kit 4 isinstal l ed. P l ease check the specific pl atform Su pported Options L ists to see if a particu l ar pl atform is su pported.

3.

TS20 is su pported for two member L AN interconnected cl u ster onl y.4.

SupportedMemoryChannel Hardware

MC 1 & 1. 5 MC2 Description

CC MA A- AA or CC MA A- B A CCM AB - AA P C I A d a p t e r

CCM HA- AA CCM HB- AA Hub

CCM L A- AA CCM L B- AA L in e C ar dN/A BN39 B -04 4-meter copper cabl e

B C12N - 10 10-foot copper cabl e

BN39B-10 10-meter copper cabl e

BN 3 9 B-01 ( one m ete r) C o nne cts M C a d a p te r t o C C M F B opt ica lconverter

C C M F B - A A F i b e r O p t i c s C o n v e r t e r

BN34R-10 (10 meter) Fiber optic cable: Connect one opticalconverter to another

B N 3 4 R - 3 1 ( 3 1 m e t e r ) Fiber optic cable: Connect one optical

converter to another



http://www.tru64unix.hp.com/docs/pub_page/cluster_list.htmlhttp://www.tru64unix.hp.com/docs/pub_page/cluster_list.htmlhttp://www.tru64unix.hp.com/docs/pub_page/cluster_list.html


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M e m o r y C h a n n e lconfiguration notes:

A t l e a s t o n e M e m o r y C h a n n e l a d a p t e r m u s t b e i n s t a l l e d i n a P C I s l o t i n e a c h m e m b e r s y s t e m . O n eor more l ink cabl es are requ ired to connect systems to each other or to a hu b. A cl u ster e n v i r o n m e n t w i t h t w o n o d e s d o e s n o t r e q u i r e a h u b . A c o n f i g u r a t i o n o f m o r e t h a n t w o m e m b e r srequires a Memory Channel hub.MC1 and MC1.5 cannot be mixed on the same rail with MC2.

There are special ru l es abou t circu mstances where Memory Channel 1 and Memory Channel 2 can beu se d t oge th er i n t he s a me c lu st er . T he T ru Cl us te r S er ve r Cl u ster Hardware Configu ration m a n u al p r ov i de sinformation regarding supported Memory Channel configurations.

S u p p o rt e d L ANInterconnect Hardware

U se of dedicated L AN is su pported for u se as a cl u ster interconnect. A L AN interconnect mu st be privatet o c l u s t e r m e m b e r s . A s l o n g a s a n y p a c k e t t h a t i s t r a n s m i t t e d b y a c l u s t e r m e m b e r ' s i n t e r c o n n e c t a d a p t e r c a n o n l y b e r e c e i v e d b y i n t e r c o n n e c t a d a p t e r s o f o t h e r m e m b e r s o f t h e s a m e c l u s t e r , t h e i n t e r c o n n e c tm e et s t h e p r iva c y r e qu ir e me nt .

A L AN interconnect can be a direct connection between two cl u ster members or can empl oy hu bs or

s w i t c h e s . I n g e ne r a l , a n y E t h e r n e t a d a p te r , s w i t c h , o r h u b t h a t w o r k s i n a s t a n d a r d L A N a t 1 0 0 M b p s o r 1 0 0 0 M b p s s h o u l d w o r k w i t h i n a L A N i n t e r c o n n e c t . ( A d a pt e r s o n c o m b o c a r d s s u c h a s t h e K Z P C M ,DEP VD, and the DEP VZ are not su pported.) Check the su pported options l ist for the hardware pl atform inqu estion to verify if the DEG X A-SA/TA is su pported for L AN interconnect. F iber Distribu ted Data Interface( F D D I ) , A T M L A N E m u l a ti o n ( L A N E ) , a n d 1 0 M b p s E t h e r n e t a r e n o t s u p p o rt e d .

Although hubs and switches are interchangeable in most LAN interconnect configurations, switches arerecommended for performance and scal abil ity. Most hu bs ru n in hal f-du pl ex mode and do not detectnetwork collisions, so their use in a LAN interconnect may limit cluster performance. O verall, using as w i t c h , r a t h e r t h a n a h u b , p r o v i d e s g r e a t e r s c a l a b i l i t y f o r c l u s t e r s w i t h t h r e e o r m o r e m e m b e r s .

Adapters and switch ports mu st be configu red compatibl y with respect to speed (100 Mbps or 1000Mbps) and operational mode (fu l l -du pl ex). A maximu m of three hops is al l owed between cl u ster members,w h e r e a h o p m e a n s p a s s i n g f r o m a s y s t e m , s w i t c h , h u b , o r r o u t e r , t o a n o t h e r s y s t e m , s w i t c h , h u b , o r r o u t e r . T h a t i s , a n y c o m b i n a t i o n o f u p t o t w o h u b s , s w i t c h e s , o r r o u t e r s i s s u p p o r t e d b e t w e e n t w o c l u s t e r members. You mu st not introdu ce u nacceptabl e l atencies by u sing, for exampl e, a satel l ite u pl ink or aw i d e a r e a n e t w o r k ( W A N ) i n t h e p a t h b e t w e e n t w o c o m p o n e n t s o f a L A N i n t e r c o n n e c t .

A fu l l y redu ndant L AN interconnect configu ration empl oys two or more Ethernet adapters in a NetRAINset on each member, with redu ndant wiring to two or more switches interl inked by two crossover cabl es.T h e s e E t h e r n e t s w i t c h e s m u s t b e c a p a b l e o f o n e o f t h e f o l l o w m e c h a n i s m s f o r m a n a g i n g t r a f f i c a c r o s sp a ra l le l i n te r -s w it c h l i nk s : l i n k a g gr e ga t io n ( a ls o k n ow n a s p o rt t r un k in g ), r e s i li e nt l i nk s , o r p e r- p or t -e n ab l edspanning tree algorithm.




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SupportedFibreChannelHardware

Tru Cl u ster Server su pports the fol l owing F ibre Channel hardware. F or more information on the su pportedF ibre Channel sol u tions, see the Tru Cl u ster Server Rel ease Notes and the Cl u ster Hardware Configu rationmanual.

Device Description

KGPSA-BC P CI-to-F ibre Channel host adapter

KGPSA-CA P CI-to-F ibre Channel host adapter

DS-DSGGA-AA/AB 8 /16-port Fibre Channel switch

DS-DSGGB-AA/AB 8 /16-port Fibre Channel switch

DS-DSGGC-AA/AB 8/16-port F C switch

DS-DMGGD-AA/AB M c D a t a 6 4 - P o r t F i b r e C h a n n e l D i r e c t o r C l a s s S w i t c h

DS-DSGGD- AA (240602- B21) 16 - port Fibre C han nel 2- GB Sw itch

DS-SWXHB-07 7-port F C hu b

H S G 6 0 Array Control l er

HSG8 0 Array Control l er

H S G6 0 a n d H S G8 0 c o nt r ol l er s m a y b e c o n ta i ne d i n m a n y c a bi n et c o nf i g ur a ti o ns i n cl u d in g M A 6 0 00 , R A 8 00 0 , M A 80 00 ,ESA12000, EMA12000, and EMA16000.T h e u s e o f t h e 7 p o r t F i b r e C h a n n el h u b i s r e s t r i c t e d t o u s e w i t h D S 1 0 , D S 1 0 L , D S 20 , D S 2 0 E , a n d E S 4 0 ( E S 4 5 ) s y s t e m s a n d t h e s ec lu st er s a re r es tr ic te d t o a m ax im um o f 2 m em be rs .

FibreChannel ArbitratedLoop Support

T r u C l u s t e r S e r v e r s u p p o r t s F i b r e C h a n n e l a r b i t r a t e d l o o p f o r c l u s t e r s w i t h a m a x i m u m o f t w o m e m b e r sonly.

Supported SCSI

ControllersT h e s y s t e m s a r e c o n n e c t e d t o s h a r e d S C S I b u s e s u s i n g a n a d a p t e r f r o m t h e f o l l o w i n g l i s t . T h e T r u C l u s t e r Server Cl u ster Hardware Configu ration m a n ua l a nd R e l e a s e N o t e s provide more information regardingSCSI control l er configu ration, respectivel y:

KZP SA - P CI to F ast Wide Differential SCSI-2 adapter KZP BA-CB/CC - P CI to U l traSCSI wide differential adapter KZPEA-DB 1 - L VD Mu l timode U 3 P CI SCSI Adapter

NOTE 1: KZP EA onl y su pported for shared bu s with one or two hosts. Tru Cl u ster V5.1B Initial P atch Kit( I P K ) i s r e q ui r e d .

S u p p o rt e d S C S I S i gn a lConverters

T r u C l u s t e r S e r v e r s u p p o r t s t h e f o l l o w i n g S C S I s i g n a l c o n v e r t e r s . T h e T r u C l u s t e r S e r v e r H a r d w a r eConfiguration manual provides information regarding supported SCSI signal converters configuration.

QuickSpecs HP TruCluster Server V5.1ASt or a g e H a r dw a r e R e q ui r e me nt s



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Signal Converter Description

DWZZA-AA Standalone unit, single-ended/narrow to differential/narrow

DWZZA-VA SBB, single-ended/narrow to differential/narrow

DWZZB-AA Standalone unit, single-ended/wide to differential/wide

DWZZB-VW S B B , s i n g l e - e n de d / w i d e t o d i f f e r e n t ia l / w i d e

DS-DWZZH-03 U l t r a S C S I h u b

DS-DWZZH-05 U l t r a S C S I h u b

3X-DWZCV-BA HVD to L VD converter

SupportedSCSI CablesTru Cl u ster Server su pports the fol l owing SCSI cabl es:

Device Description

BN21W-0B SCSI-2 Cabl e " Y"

B N 21 R o r B N 23 G SCSI-2 Cabl e " A"

BN21K, BN21L, or 328 215-00X SCSI-3 Cabl e " P "

B N 2 1 M 5 0- pin L D t o 6 8- pin HD

BC06P or BC19 J 5 0- pi n L D C ab le

B N 3 8 C, B N 3 8 D, o r B N 3 8 E VHDCI to HD6 8 c abl e

B N 3 7 A U l tra VHDCI Cabl e

BN 37 B VHDCI to HD6 8 c abl e

B N 2 1 M 5 0- pi n L D to H D6 8 ca bl e

199629-002 or 18 9636-002 5 0- pin HD to 6 8- pi n HD

1467 45-003 or 1467 7 6-003 5 0- pi n H D t o 5 0- pi n H D

18 9646-001 or 18 9646-002 6 8- pi n H D

BN 38 E- 0B HD 6 8 to VHDC I t ech no lo g y a d ap ter ca b le

3X-BC56J-O 2 6 FT VHDCI T O VHDCI, U160

3X-BC56J-O 3 12 FT VHDCI T O VHDCI, U160

3X- BC56J - O4 2 4 FT VHDC I TO VHD C I, U 16 0

3X-BN55A-01 U 1 6 0 S C SI C a b le " Y "

NOTE: P a r t 3 X - B N 5 5 A -0 1 c o n s i s t s o f t h e V H D C I " Y " c a b l e P / N 1 7 - 0 5 1 4 4 - 0 1 a n d c o n n e ct o r p l u g P / N 1 2 - 1 0 0 1 5 - 0 1

QuickSpecs HP TruCluster Server V5.1ASt or a g e H a r dw a r e R e q ui r e me nt s



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Supported TerminatorsandConnectors

T r u C l u s t e r S e r v e r s u p p o r t s t h e f o l l o w i n g t e r m i n a t o r s a n d c o n n e c t o r s :

Device DescriptionH 87 9 -A A o r 3 3 05 63 - 00 1 H D 6 8 t e r m i n a t o r

H885-AA HD68 tri-link connector

H886 1-AA VHDCI tri-link connector

H886 3-AA VHDCI termina tor

H8574 -A 50-pin LD terminator

H886 0-AA 50-pin LD terminator

34 1102- 001 50- pin HD term in ato r

1527 3 2- 001 VHDC I 6 8 - pin LV D term in ato r

3X-H32CT-AA L V D U 1 6 0 T e r mi n a to r

S u p p o r t e d D is k D e vi c e s Every SCSI and F ibre Channel storage disk cu rrentl y sol d by HP that appears in the su pported options l istfor a su pported Al phaServer are su pported for u se in a cl u ster on a shared bu s.

Some l egacy disk devices are not su pported for u se on a shared bu s. Tru Cl u ster Server su pports thefollowing list of disk devices on shared storage. Any SCSI or Fibre Channel storage disk manufactured byHP later than the ones in the following list, and appearing in the supported options list for a supportedAl phaServer, is su pported.

RZ 26-VA NarrowR Z 26 L - VA N a rr o w

RZ26 L-VW WideRZ 26N-VA NarrowRZ26 N-VW WideRZ 28 -VA NarrowRZ28-VW WideR Z 28 B - VA N a r ro wR Z 28 D -V A N a r ro wRZ28D-VW WideR Z 28 L - VA N a rr o wRZ28L-VW Wide

RZ 28 M-VA NarrowRZ28M-VW Wide

RZ 29-VA NarrowRZ29-VW WideR Z 29 B - V A N a rr o wRZ29B-VW WideR Z 29 L - VA N a r ro wRZ29L-VW Wide

RZ 40-VA NarrowRZ4 0-VW WideR Z 40 L -V A N a r ro wRZ4 0L-VW Wide

QuickSpecs HP TruCluster Server V5.1AH a r dw a r e R e q ui r e me nt s



18/21

DataRouters andNetworkStorage Routers

The HP F ibre Channel Tape Control l er, Modu l ar Data Rou ter (MDR), and Network Storage Rou ter (NSR)are F ibre Channel -to-SCSI bridges that al l ow a SCSI tape device to commu nicate with other devices on aF i b r e C h a n n el . T a p e s a n d t a p e li b r a r i e s su p p o r t e d b y t h e M D R o r N S R a r e s u p p o r t ed f o r u s e i n aT r u C l us t e r w h e n d e p lo y e d o n t h e M D R o r N S R .

The fol l owing tape control l ers and modu l ar data rou ters are su pported on shared storage:340654-001 Fibre Channel T ape Controller 15297 5-001 Fibre Channel T ape Controller II1 6 3 0 8 2- B 2 1 3 R - A 2 6 7 3 - AA F i b r e C h a n n el M o d u l a r D a t a R o u t er (M D R )1 6 3 0 8 3- B 2 1 3 R - A 2 7 7 4 - A A F i b r e C h a n n el M o d u l a r D a t a R o u t er ( M D R )2 1 8 2 4 0- B 2 1 3 R - A 3 2 9 2 - AA F i b r e C h a n n el M o d u l a r D a t a R o u t er (M D R )2 1 8 2 4 1- B 2 1 3 R - A 3 3 12 - A A F i b r e C h a n n el M o d u l a r D a t a R o u t er (M D R )2 8 0 8 2 3 - B 2 1 ( 3 R - A 3 7 4 7 - A A ) N e t w o r k S t o r a g e R o u t e r ( N 1 2 0 0 ) 1

262672-B21 (3R-A3746-AA) Network Storage Rou ter (E1200) 1

28669 4-B21 (3R-A3871-AA) Network Storage Rou ter (E1200) 1

262665-B21 (3R-A39 35-AA) Network Storage Rou ter (E2400) 1

262664-B21 (3R-A3745-AA) Network Storage Rou ter (E2400) 12 6 2 6 5 3 - B 2 1 ( 3 R - A 3 7 4 0 - A A ) N e t w o r k S t o r a g e R o u t e r ( M 2 4 0 2 ) 1

2 6 2 6 5 4 - B 2 1 ( 3 R - A 3 7 4 1 - A A ) N e t w o r k S t o r a g e R o u t e r ( M 2 4 0 2 ) 1

Note that Tru Cl u ster su pport for tape l ibraries with N1200, E1200, E2400, and M2402 isr e s t r ic t e d t o D L T a n d SD L T b a s e d l i b r a ri e s o n l y , i . e . M S L 5 0 26 S L / D L X , E S L 9 1 9 8 SL / D L X , a n dE SL9326 SL/DL/DLX.

1.

F or a l ist of tape au tomation devices su pported by HP Nearl ine Storage, go tohttp://h18006.www1.hp.com/produ cts/storageworks/ebs/index.html to see the EBS CompatibilityMatrix.

Supported TapeD e vi c e s a n d Me d i aC h a n g e r s

Tru Cl u ster Server su pports the configu ration of specific tape devices on a shared SCSI bu s and on F ibreC h a n n e l. T h e s e d e v ic e s w i l l f u n c t i on p r o p e r l y i n a m u l t i - in i t i a to r e n v i r o n m en t . O n a S C S I b u s , t h e y w i l l b ed i s r u p t e d b y b u s r e s e t s t h a t o c c u r d u r i n g c l u s t e r m e m b e r s h i p c h a n g e e v e n t s . B a c k u p s o f t w a r e m u s t b eexplicitly capable of handling and recovering from such events and must utilize the cluster applicationa v a i l ab i l i ty ( C A A) f a c il i t y to f a c i l it a t e h i g h l y a v a i l a bl e b a c k u p.

The fol l owing tape devices are su pported on shared storage:

T Z 8 8 T ape Drive Tabl etop: T Z 8 8 N-T A

SBB: T Z 8 8 N-VA

T Z 8 9 T ape Drive Tabl etop: DS-TZ89N-TA

SBB: DS-TZ89 N- VWT Z 88 5 D L T M i ni L ib r a ry Tabl etop: T Z 8 8 5-NT

R a c k m o u n t : T Z 8 8 5-NE

T Z 8 8 7 D L T M i n iL i b r a ry Tabl etop: T Z 8 8 7 -NT

Rac k m ou nt TZ 88 7 - N E

H P 2 0/ 4 0- G B D LT T ap e D ri ve Tabl etop: 3407 44-B21

H P 4 0/ 8 0- G B D LT T ap e D ri ve Tabl etop: 146197 -B22



http://h18006.www1.hp.com/products/storageworks/ebs/index.htmlftp://ftp.compaq.com/pub/products/storageworks/techdoc/ebs/matrix-dec-2002.pdfftp://ftp.compaq.com/pub/products/storageworks/techdoc/ebs/matrix-dec-2002.pdfftp://ftp.compaq.com/pub/products/storageworks/techdoc/ebs/matrix-dec-2002.pdfftp://ftp.compaq.com/pub/products/storageworks/techdoc/ebs/matrix-dec-2002.pdfhttp://h18006.www1.hp.com/products/storageworks/ebs/index.htmlhttp://h18006.www1.hp.com/products/storageworks/ebs/index.html


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T L 89 1 D L T M i ni L ib r ar y(2-5-2 P art Nu mbers)

Tabl etop: DS-T L8 91-NT1

Rac k m ou nt: DS- TL8 9 1- NE/ NG 1,2

T L 89 1 D L T M i ni L ib r ar y( 6 - 3 P a r t N u m b e r s )

Tabl etop: T L8 91 with 1 DLT 35/7 0drive

1208 7 5-B213

T L8 91 with 2 DLT 35/7 0drives

1208 7 5-B22

Rac k m ou nt: TL 8 9 1 w ith 1 DLT 3 5/ 7 0drive

1208 7 6-B21 3

T L8 91 with 2 DLT 35/7 0drives

1298 7 6-B22

M i n i Li b r a ry E x p a ns i o n U n i t 1208 7 7 -B21 4

MiniLibrary Data Unit 12 867 0- B21

T L 88 1 D L T M i ni L ib r ar y Tabl etop T L8 8 1 with 1 DLT 20/40drive

128 667 -B21 5

T L8 8 1 with 2 DLT 20/40drives

128 667 -B22 5

Rac k m ou nt: TL 8 81 w ith 1 DLT 2 0/ 4 0drive

128 669-B21

T L8 8 1 with 2 DLT 20/40drives

128 669-B22 4

M i n i Li b r a ry E x p a ns i o n U n i t 1208 7 7 -B21

MiniLibrary Data Unit 12 867 0- B21

TL 89 3 Au tomated Tape L ibrary DS-TL893-BA

TL 89 4 Au tomated Tape L ibrary DS-TL894 -BA

TL 89 5 DL T Au tomated Tape L ibrary

Number of Drives 2-5-2 Part Number 6-3Part Number

2 DS-TL895-H2 349350-B22

3 N/A 349350-B23

4 N/A 349350-B24

5 DS-TL895-BA 349350-B25

6 N/A 349350-B26

7 N/A 349350-B27

1 DS-TL89X-UA6 349351-B217




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TL 89 6 DL T Au tomated Tape L ibrary DS-TL896 -BA

ESL 9 3 2 6 D En terp ris e L ib ra ry

Number of Drives 6-3 Part Number

0 146205-B21

6 146205-B23

8 14 6205- B24

10 14 6205- B25

12 14 6205- B26

14 146205-B27

16 146205-B28

1. Can be expanded to two TZ89 N-AV drives with part nu mber DS-TL 89 2-U A.2. A DS-T L8 90-NE/NG MiniLibrary Expansion Unit can be connected to up to three DS-T L8 91-NE/NG drive units to manage thedrives and cartridges in all connected units. A DS-T L8 00-AA pass through mechanism is required for the second and third DS-T L8 91-

N E / N G .3 . C a n b e e x p a n d e d t o t w o D L T 3 5 / 7 0 d r i v e s w i t h p a r t n u m b e r 1 2 08 7 8 - B 2 1 .4. T he MiniLibrary Expansion Unit can be used to control the drives and cartridges of up to five drive and data units. A MiniLibraryPass-T hrough Mechanism, part number 1208 8 0-B21, is needed for each additional unit beyond the first drive unit.5 . C a n b e e x p a n d e d t o t w o D L T 2 0 / 4 0 d r i v e s w i t h p a r t n u m b e r 1 2 86 7 1 - B 2 1 .6. An upgrade kit to add one DS-T Z 8 9N-VA tape drive.7 . A n u p g r a d e k it t o a d d o n e 3 5 / 7 0 D L T t a p e d ri v e .8 . C a n b e u p g r a d e d b y t h e a d d i t i o n o f a s i n g l e o r m u l t i p l e 3 5 / 7 0 D L T t a p e d r i v e s w i t h p a r t n u m b er 1 4 6 2 0 9 - B 2 1 .

NOTE: T he T L8 8 1, T L8 91, T L8 93, T L8 94, T L8 95, T L8 96, HP 20/40-GB DLT T ape Drive, HP 40/8 0 GB DLT T ape Drive, andESL 9 326D Enterprise L ibrary are su pported with both the KZP SA and KZP BA-CB/CC adapters. Al l other SCSI tape device andmedia changer support is provided with KZ PSA adapters only.

NOTE: T he T L8 91 Mini Library, T L8 95 Automated T ape Library, and the ESL9326D Enterprise Library are also supported on a FibreChannel storage bus with the KGPSA-BC and KGPSA-CA adapter.NOTE: T he HP Fibre Channel T ape Controller and Modular Data Router are Fibre Channel-to-SCSI bridges that allow a SCSI tapedevice to commu nicate with other devices on a F ibre Channel .

F or a l ist of tape devices su pported by Enterprise Backu p Storage, see the Enterprise Backu p Storage docu mentation.

Supported Storage BoxesT r u C l u s t e r S e r v e r s u p p o r t s t h e f o l l o w i n g s t o r a g e b o x e s :

Storage Box Description

BA350 Sing le ended, narrowBA356 S i n g le e n d e d , w i d e

DS-BA356 U l tra SCSI, SBB shel f




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SupportedParallel SCSIArray (RAID) Controllers

Tru Cl u ster Server su pports the fol l owing paral l el SCSI RAID control l ers on shared storage bu ses. TheTru Cl u ster Server Rel ease Notes provide information regarding su pported Array (RAID) control l ersfirmware revisions.

RAIDController

SWXRA-Z 1 Array Controller (HSZ 20)R A I D A r r a y 30 0 0 ( H S Z 22 )H S Z 4 0 - B x A r r a y C o n t r o l l e r HSZ40-Cx Array Control l er HSZ 50-Ax Array Controller H S Z 7 0 A r r a y C o n t r ol l e r H S Z 8 0 A r r a y C o n t r ol l e r H S V 1 1 0 A r r a y C o n t r ol l e r

Network Adapters Tru Cl u ster Server su pports for cl ient networks any Ethernet, F DDI, ATM (L AN emu l ation mode onl y), or G igabit Ethernet adapters that are su pported by the version of Tru 64 U NIX on which it is ru nning.

Hardware Restrictions T r u C l u s t e r S e r v e r h a s t h e f o l l o w i n g h a r d w a r e r e s t r i c t i o n s . T h e T r u C l u s t e r S e r v e r C l u s t e r H a r d w a r eC o n f i g u ra t i o n m a n u a l p r o v i de s a d d i t i o n al i n f o r m a ti o n r e g a r d i ng h a r d w a r e r e s t r i ct i o n s .

P restoserve NVRAM fail over is not su pported on shared disk devices.

T r u C l u s t e r S e r v e r s u p p o r t s u p t o e i g h t m e m b e r c l u s t e r c o n f i g u r a t i o n s a s f o l l o w s :

S w i t c h e d F ib r e C h a nn e l: E i g h t - m e m b e r s y s t e m s m a y b e c o n n e c t e d t o c o m m o n s t o r a g e o v e r F i b r eC h an n el i n a f a b r ic ( s wi t ch ) c o n f ig u ra t io n .Parallel SCSI: O n l y f o u r o f t h e m e m b e r s y s t e m s m a y b e c o n n e c t e d t o a n y o n e S C S I b u s . M u l t i p l e

S CS I b us es m ay b e c onne ct ed t o dif fe re nt s et s o f m em be rs a nd t he s et s o f m em be rs m ay o ve rla p.Use of a DS-DWZ Z H-05 UltraSCSI hub with fair arbitration enabled is recommended whenc o n n e c t i n g f o u r m e m b e r s y s t e m s t o a c o m m o n S C S I b u s .

H a r d w a r e C o n f i g u r a t i o nExamples

T h e T r uC lu s te r S er ve r Cl u ster Hardware Configu ration m a n u a l p r o v i de s h a r d w a r e c on f i g u r at i o ne x a m p l e s .

© Copyright 2003 Hewl ett-P ackard Devel opment Company, L .P .

T he information contained herein is subject to change without notice.

U NIX and The Open G rou p are trademarks of The Open G rou p in the U .S. and/or other cou ntries. Informix and Informix ExtendedP a r a l l e l S e r v e r a r e t r a d e m a r k s o f I n f o r m i x S o f t w a r e , I n c . N e t W o r k e r a n d P r e s t o s e r v e a r e t r a d e m a r k s o f L e g a t o S y s t e m s , I n c . O r a c l e aOracl e P aral l el Server are trademarks of the Oracl e Corporation. NF S is a trademark of Su n Microsystems, Inc. Al l other produ ct namem e n t i o n e d h e r e i n m a y b e t h e t r a d e m a r k s o f t h e i r r e s p e c t i v e c o m p a n i e s .

T h e o n l y w a r r a n t i e s f o r H P p r o d u c t s a n d s e r v i c e s a r e s e t f o r t h i n t h e e x p r e s s w a r r a n t y s t a t e m e n t s a c c o m p a n y i n g s u c h p r o d u c t s a n ds e r v i ce s . N o t h i ng h e r e i n s h o u ld b e c o n s t r u ed a s c o n s t i t u ti n g a n a d d i t i on a l w a r r a n t y. H P s h a l l n o t b e l i a b l e f o r t ec h n i c a l o r e d i t o ri a lerrors or omissions contained herein.


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