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7/29/2019 1Storage Resource Management SRM Solutions Design Concepts - IMPACT
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Copyright 2005 EMC Corporation. Do not Copy - All Rights Reserved.
Storage Resource Management Solution Design Concepts - 1
2005 EMC Corporation. All rights reserved.
Storage Resource Management (SRM)
Solution Design Concepts
Storage Resource Management (SRM)
Solution Design Concepts
Welcome to Storage Resource Management Solution Design Concepts.
The AUDIO portion of this course is supplemental to the material and is not a replacement for thestudent notes accompanying this course.
EMC recommends downloading the Student Resource Guide from the Supporting Materials tab, andreading the notes in their entirety.
These materials may not be copied without EMC's written consent.
EMC believes the information in this publication is accurate as of its publication date. The information is subject to changewithout notice.
THE INFORMATION IN THIS PUBLICATION IS PROVIDED AS IS. EMC CORPORATION MAKES NOREPRESENTATIONS OR WARRANTIES OF ANY KIND WITH RESPECT TO THE INFORMATION IN THIS
PUBLICATION, AND SPECIFICALLY DISCLAIMS IMPLIED WARRANTIES OF MERCHANTABILITY ORFITNESS FOR A PARTICULAR PURPOSE.
Use, copying, and distribution of any EMC software described in this publication requires an applicable software license.
EMC, EMC ControlCenter, Navisphere, and VisualSAN are registered trademarks, and VisualSRM is a trademark of EMCCorporation.
All other trademarks used herein are the property of their respective owners
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Storage Resource Management Solution Design Concepts - 2
2005 EMC Corporation. All rights reserved. Storage Resource Management Solution Design Concepts - 2
Course Objectives
Upon completion of this course, you will be able to:
y Describe the important technical data to be gatheredabout the use of SRM solutions
y Describe how technical data is gathered for SRM
solutions
y Describe how to interpret and comprehend the gathered
data
y Discuss the best-practices for designing andimplementing SRM solutions
The objectives for this course are shown here. Please take a moment to read them.
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Storage Resource Management Solution Design Concepts - 3
2005 EMC Corporation. All rights reserved. Storage Resource Management Solution Design Concepts - 3
What Terminology Does SRM Use?
Upon completion of this lesson, you will be able to:
y Describe SRM concepts and terminology
y Use your knowledge of the key features of EMC Storage
Resource Management tools to choose a software
solution
The objectives for this lesson are shown here. Please take a moment to review them.
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Storage Resource Management Terminology
y Array Management (device creation, data protection) Storage array monitoring, configuring devices, RAID protection levels, local and
remote replication methodsy Storage Allocation (Masking, Zoning, LUN Masking)
Allocating array devices to ports, matching array ports to host bus adapters,establishing masking to permit hosts to access devices
y SAN Management FibreChannel switch monitoring, zone and fabric management
y Alerting Using agents to poll hardware and software devices for health, capacity, and
performance issues; monitoring through a software user interface, email, or SNMPtraps
y Reporting Using agents to collect configuration, capacity, and performance data on hardware
and software devices, collecting the data into a central location, and querying thedata to produce reports
y Management Software Security Common management software authentication methods
You should become familiar with the Storage Resource Management processes and tasks shown here.
Since customers tend to view their needs in terms of these main categories, this course will frequently
refer to these terms.
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Storage Resource Management Solution Design Concepts - 5
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Storage Resource Management Tools
Native Tools
EMC Navisphere
EMC VisualSRM /
StorageScope FLR
EMC VisualSAN
EMC ControlCenter
You should also have some familiarity with ControlCenter, VisualSAN, and VisualSRM (or
StorageScope FLR), since they will be the focus of this presentation.
Navisphere will be discussed occasionally as an alternative for managing CLARiiON arrays.Native tools are those produced by other vendors for control of their switches, arrays, or applications.
While you will not need any real knowledge of each native tool, you will have to be aware that they
exist as an alternative to the EMC Storage Resource Management tools.
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Determining the Storage Resource Management
Solution
Upon completion of this lesson, you will be able to:
y Match a customers needs to one of EMCs Storage
Resource Management tools: ControlCenter, VisualSAN,
or VisualSRM
The objectives for this lesson are shown here. Please take a moment to read them.
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Determining the Software Solution
Knowledge of Customers Storage Resource
Management Needs
Knowledge of EMC Storage Resource
Management Tools Capabilities and Limitations
ControlCenter VisualSRM VisualSAN
+
Design and
Implement
Design and
Implement
Design and
Implement
Lesson
1
Less
on
2
To determine a storage management solution, an architect must have knowledge of the customers
Storage Resource Management needs, and knowledge of the EMC Storage Resource Management
tools. Customer needs can best be determined by interviewing the customer. Information regarding
the high-level business processes as well as the low-level technical details are equally important, sincethe solution must fit into the established business flow and also be technically feasible.
An architect must also know the capabilities of the core EMC Storage Resource Management tools:
ControlCenter, VisualSRM, and VisualSAN. He or she must especially be able to differentiate the
product features to choose the best tool for the job.
Once the correct software solution is chosen, more specific planning details must be determined before
the product can be implemented. Technicalities regarding the hosts that the software can be installed
on, compatibility with existing software on the hosts, networking requirements, and other details must
be determined prior to installation.
This lesson covered the main differentiating features of the EMC tools. The next lesson goes intolower-level planning details.
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What Information is Important to Know About SRM?
Upon completion of this lesson, you will be able to:
y Describe the technical data that you need to gather aboutSRM needs, including:
Vendor information and compatibility
Array management
Storage allocation
SAN Management
Alerting
Reporting
y Determine the key design considerations for your
solution, and ask for data regarding them
The objectives for this lesson are shown here. Please take a moment to review them.
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Storage Resource Management Needs
y What is the customers storage environment?
y What vendor and models are to be managed?
y What are the compatibility limitations?
One of the most important things to know about the customers needs is their environment - what
manufacturer and model of hosts, arrays, switches, and applications need to be monitored. While this
may seem to be a lower-level planning detail, it is essential, even at the early stages. All software
solutions have some compatibility limitations. It would not be a good idea to choose a softwaresolution that does not actually work in the customers specific environment.
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Storage Resource Management Needs (Cont.)
yArray Management
What management tasks are required: device creation, mapping,business continuity, etc.?
y Storage Allocation (Mapping, Zoning, LUN Masking)
What tasks are needed, and how what should be automated?
Some tools provide only one allocation function, such as LUN
Masking
y SAN Management
Will the fabric be managed manually or by automated StorageAllocation processes?
Shown here are some of the most important factors in choosing a Storage Management solution.
For Array Management, the tasks to be performed are the important factors. Will the customer be
creating devices and mapping devices to ports? Will local or remote business continuity functions berequired? Not every software tool can perform each of these tasks, so make sure you ask the customer
what tasks are needed.
Storage Allocation tasks are typically defined as those required to bring array devices under the control
of a host. Device mapping, SAN zoning, and LUN masking are typically considered allocation tasks.
As with array management, the tasks must be determined, because not all tools can perform each task.
Additionally, some tools can automate some or all of the allocation tasks. For instance, ControlCenter
can perform LUN masking but not mapping on some non-EMC storage arrays.
Features are fairly similar across the EMC products that can perform SAN Management tasks.
ControlCenter and VisualSAN can both manage heterogeneous switched fabric environments, however
there are slight differences in the level of automation and scaling capabilities.
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Storage Resource Management Needs (Cont.)
yAlerting
What sort of alerting: health, capacity, performance?What resources should be monitored?
How should the alerts be delivered: user interface, email, or SNMP?
y Reporting
What sort of reporting: configuration, utilization, performance?
What resources should be reported?
For filesystem reporting, what level of detail: filesystem or file-level?
Are long-term trends needed?
All of the Storage Resource Management tools discussed in this course have some alerting
functionality. In anything but the smallest environment, the customer will be overwhelmed with alerts
if they are all enabled, so it is important to reduce their number or at least prioritize them. Customers
frequently have very specific issues that they would like alerting forfind out what kinds of alerts areof the most interest, and on what resources. Also find out how the alerts should be delivered: all the
EMC solutions can display the alert in the software user interface, or deliver it by email or by SNMP.
Reporting tasks can be loosely divided into categories of configuration, utilization, and performance.
Each tool has different reporting capabilities in each area. For instance, VisualSRM provides detailed
utilization reporting for filesystems, databases, and mail servers, but absolutely no performance
reporting.
For filesystem reporting, determine if reports should show filesystem-level details, or drill down to
report on the individual files and folders. This is one of the key differentiating points that separate
ControlCenter StorageScope and VisualSRM.
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EMC Array Management
ControlCenter can discover many
arrays, and perform limitedconfiguration on HP StorageWorks
arrays. Native tools provide better
management
Other Non-EMC array management
ControlCenter can discover and
monitor the array, but native tools
provide better management
Other EMC array management:
Celerra, Centera
Navisphere is the most complete
choice, but recent ControlCenter
versions are nearly as complete
CLARiiON management
ControlCenter is the only choiceSymmetrix management
THEN:IF the solution requires:
Here are important facts about EMC Array Management that differentiate the Storage Resource
Management Solutions.
If Symmetrix management is needed, then ControlCenter is the only choice. It is the only EMCproduct discussed here that can manage Symmetrix arrays.
If CLARiiON management is needed, then the native CLARiiON management tool Navisphere is the
most complete choice. However, it is designed to work with the CLARiiON alone, and does not
provide the wide variety of management solutions that ControlCenter does. Recent versions of
ControlCenter have added more and more capabilities for managing CLARiiON arrays, so it is now a
very good choice for general CLARiiON management.
If other EMC storage devices such as the Celerra or Centera need to be managed, the native tools are
probably the best bet. At the current time, ControlCenter provides basic monitoring of these storage
devices only.
If non-EMC arrays such as those sold by IBM, Hitachi, or HP need to be managed, their native tools
are probably the most capable choice. ControlCenter can discover and monitor any of the arrays by
these vendors listed in the Support Matrix, but can only perform limited management functions on
certain HP StorageWorks arrays.
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EMC Storage Allocation
ControlCenter can provision HP
StorageWorks XP 512 arrays
ControlCenter can LUN mask HP,
HDS and Sun arrays
Other Non-EMC array management
ControlCenter provides automated
provisioning
Navisphere provides manual device
creation, mapping, LUN masking
VisualSAN can mask and zone
existing LUNs with some automation
CLARiiON allocation
ControlCenter is the only choice
Provisioning of devices from array tohost can be automated
Symmetrix allocation
THEN:IF the solution requires:
Storage Allocation tasks vary widely across the Storage Resource Management solutions.
If allocation of Symmetrix storage is needed, ControlCenter is the only choiceno other software tool
discussed here can perform the Symmetrix device mapping and LUN masking tasks. ControlCenteralso provides automated provisioning, automating the necessary tasks for mapping devices, zoning and
LUN masking them, and making them available to the host. The user only needs to organize available
devices into a pool, and then give the command to allocate some amount of storage from the pool to
a host.
If allocation of CLARiiON devices is needed, several tools are available. ControlCenter can manually
or automatically provision CLARiiON devices in the same way Symmetrix devices are managed.
Navisphere provides complete CLARiiON management, including device creation, masking, and LUN
masking, but it has no ability to zone the devices to the host.
VisualSAN has complete SAN management functionality, and can LUN mask CLARiiON devices that
have already been created. A certain amount of automation is also available.
Some allocation of devices on non-EMC arrays can be done with ControlCenter. StorageWorks XP
512 arrays can be completely provisioned, while LUN masking only is available for the other arrays
listed here.
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EMC SAN Management
VisualSAN with Configuration
Manager module is the best choice
Detailed SAN configuration change
reporting
ControlCenter is the best choice
VisualSAN preferred size: under 128
ports
Native tools provide complete
management but do not scale well
Large environment management
THEN:IF the solution requires:
ControlCenter, VisualSAN, and switch native tools all have significant SAN management features.
Native tools do not scale up to large environments well, and often can not manage heterogeneous
environments.
VisualSAN is an excellent tool for SAN management, but the preferred managed environment is one
that has less than 128 ports. Larger environments can be managed, but it becomes increasingly harder
to use the necessary views as the number of ports grows.
This leaves ControlCenter as the best choice for large SAN environments. ControlCenter can manage
a large number of heterogeneous switches and fabrics, and of course provides alerting, reporting, and
other functions.
If detailed SAN configuration change reporting is needed, then VisualSAN is the best choice. The
Configuration Manager module can regularly record hardware, fabric, and LUN masking details. A
user can then compare the current configuration with any past configuration to see what components
have been added, deleted, or changed. While ControlCenter can snapshot SAN configuration, it cannot compare different versions in this way.
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Scenario A
Customer has a large number of Symmetrix and IBM
ESS arrays and would like to manage the arrays andSAN, as well as perform whatever automated
provisioning is available.
What Storage Resource Management solution meets this
need?
9
What Storage Resource Management solution meets the needs presented in this scenario? Your
answer might include one or more of the software tools we have discussed. When you have considered
your answer, go to the next slide.
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Scenario A Solution
ControlCenter is the best solution for this scenario,
because all the arrays can be monitored, although theESS arrays can not really be managed.
Complete storage provisioning is available for the
Symmetrix arrays, but not the ESS arrays.
9
The most complete solution is provided by ControlCenter, since both Symmetrix and ESS arrays must
be monitored. However, no EMC tools will completely fit the requirements. The customer should be
made aware that only the IBM native tools can provide complete management and provisioning of the
ESS array.
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Scenario B
Customer has a small environment containing CLARiiON
arrays and Connectrix switches, and would like a budget-conscious solution for basic array and SAN
management.
What Storage Resource Management solution meets this
need?
9
What Storage Resource Management solution meets the needs presented in this scenario? Your
answer might include one or more of the software tools we have discussed. When you have considered
your answer, go to the next slide.
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Scenario B Solution
Navisphere and VisualSAN are probably the best
solutions for this scenario. Navisphere is a good,complete array management solution for CLARiiON,
while VisualSAN is complete SAN management solution
for small environments.
9
A good solution for this situation is a combination of Navisphere and VisualSAN. Navisphere
provides complete management for the CLARiiON arrays, while VisualSAN can manage the SAN and
do CLARiiON provisioning. It is somewhat inconvenient to use two tools to perform the management
tasks, but the cost for the solution will be low.
ControlCenter can also provide the needed management features all in a single interface, but might be
too expensive a solution for a small environment.
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EMC Alerting
ControlCenter has moderate
application alerting for Oracle,
minimal for other databases
VisualSRM can do simple database
file and mail server mailbox capacity
threshold alerting
Application alerting
ControlCenter or VisualSAN can
provide switch alerts
SAN alerting
ControlCenter is the best choice,
detail of alerting varies by array
Array alerting
THEN:IF the solution requires:
SNMP alerting Many arrays and switches can send alerts by
SNMP to management framework tools
If a customers solution requires array alerting, ControlCenter is the best choice as it is the only tool
(besides native tools) that can capture alerts from a variety of arrays. The level of detail in the alerts
varies by array, with Symmetrix arrays having the most detail.
Both ControlCenter and VisualSAN can provide switch alerts. Both have a wide variety of health and
performance alerting capability.
Application alerting is not well covered by the EMC solutions discussed here. ControlCenter has some
alerting for Oracle databases, but only simple active or inactive alerting for the other supported
databases.
VisualSRM has some alerting for the databases and mail servers that it supports, but only regarding
capacities. No alerting is provided by VisualSRM for application health issues.
Another important issue regarding alerting in the EMC product line is the use of SNMP alerts. All of
the non-Symmetrix arrays that EMC sells and all of the EMC switches can be configured to deliver
SNMP alerts or traps. SNMP traps can be generated for Symmetrix alerts if the ControlCenter
Integration Gateway Agent is deployed. If the customer is using an appropriate SNMP management
framework tool, they might prefer their alerting be delivered there instead of being handled by EMC
software.
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EMC Reporting
ControlCenter or VisualSANSAN configuration or performance
details
ControlCenterArray configuration or performance
details
VisualSRMFile-level, database table-level, mail
server mailbox-level details
ControlCenter or VisualSRMApplication-level, host-level,
filesystem-level configuration and
utilization
THEN:IF the solution requires:
All three of the Storage Resource Management tools provide some amount of reporting on the things
they monitor. ControlCenter is the best bet for monitoring array configuration and performance
details. Configuration details of all of the supported arrays can be reported by StorageScope, and
performance data can be reported for Symmetrix and CLARiiON arrays by Performance Manager.
SAN reporting can be done by both ControlCenter and VisualSAN. Both show detailed configuration,
zoning, and complete path (host to SAN to storage) details. If SAN reporting alone is the issue, both
products would provide a good solution.
Reporting about the high level of user data objects such as applications, hosts, and filesystems can be
done with ControlCenter or VisualSRM. Both tools show basic configuration and storage utilization at
this level.
Lower level reporting of user data objects such as files, database tables, and mail server mailboxes can
only be done with VisualSRM. VisualSRMs main function is to report on these details, so extensive
reporting and filtering is available.
StorageScopes File Level Summary reports can also produce some file-level details, but in summary
format.
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EMC Management Software Security
ControlCenter has extensive role
authorization
VisualSRM has only two roles:
administrator, and reporting (can only
view reports)
Explicit roles to limit user access
ControlCenter, VisualSRM, and
VisualSAN can all use Windows
authentication
Windows Authentication
THEN:IF the solution requires:
All of the EMC solutions can use Windows authentication to limit access to authorized users. This
makes it simple for administrators, since long user lists do not have to be incorporated into the
software, and simple for users who can just log in using their regular Windows login and password.
ControlCenter has extensive role authorization. Users can be given access to only certain tasks if
needed. VisualSRM has only two roles: the administrator, and a reporting role that can only view
generated reports.
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Scenario C
Customer has a large number of Symmetrix and IBM
ESS arrays and would like reporting on the array andSAN device configuration, as well as trend reporting on
the amount of configured array space. Alerting for array
and SAN health is also needed
What Storage Resource Management solution meets this
need?
9
What Storage Resource Management solution meets the needs presented in this scenario? Your
answer might include one or more of the software tools we have discussed. When you have considered
your answer, go to the next slide.
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Scenario C Solution
ControlCenter is the best solution for this scenario,
because configuration details can easily be reportedusing StorageScope. Configured array space trending is
also available. Alerting can also be handled for the array
and SAN devices.
9
ControlCenter is a good solution for this scenario, because it can meet nearly all of the needs.
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Scenario D
Customer has a small environment containing CLARiiON
arrays and Connectrix switches, and would like hostvolume-to-array device relationship reporting.
The customer is also interested in finding files that have
not been accessed in some time so that they might be
migrated to tape storage.
What Storage Resource Management solution meets this
need?
9
What Storage Resource Management solution meets the needs presented in this scenario? Your
answer might include one or more of the software tools we have discussed. When you have considered
your answer, go to the next slide.
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Scenario D Solution
The functions can be performed with a combination of
Navisphere, VisualSAN, and VisualSRM.
Navisphere provides complete array management
functionality, and VisualSAN can be used to display host
volume and array device mapping.
VisualSRM can be used to report on the files that have
not been accessed in some time, and can even perform
actions that will migrate them to tape storage.
9
A good fit for this scenario is a combination of Navisphere, VisualSAN, and VisualSRM.
Navisphere and VisualSAN can manage the CLARiiON arrays and SAN environment. VisualSAN can
display the host volume and array device mapping, but it can not really export it into a report filetheuser will have to view the interface. VisualSRM can be used to report on the files that have not been
accessed in some time. When such files are detected, VisualSRM agents can automatically run scripts
to migrate them to tape storage.
Alternatively, ControlCenter might be used in place of Navisphere and VisualSAN, since it too can
perform all of the indicated functions. However, StorageScope File Level Reporterthe
ControlCenter-branded version of VisualSRMwould still have to be used to report and act on the un-
accessed files.
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Best Practices When Designing SRM Solutions
Upon completion of this lesson, you will be able to:
y Describe best practices for ControlCenter design
y Describe best practices for VisualSRM design
y Describe best practices for VisualSAN design
The objectives for this lesson are shown here. Please take a moment to review them.
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Designing the Solution
Knowledge of Customers Storage Resource
Management Needs
Knowledge of EMC Storage Resource
Management Tools Capabilities and Limitations
ControlCenter VisualSRM VisualSAN
+
Design and
Implement
Design and
Implement
Design and
Implement
Lesson
1
Less
on
2
Having determined which tools are best suited for the situation, an architect must now design the
solution for optimum results in the specific customers environment. Specific details about how the
customer will be implementing and using the software are now needed. This module will present the
most common of these details, and suggest questions to be raised with the customer to find theanswers.
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ControlCenter
ControlCenter
Design and
Implementation
This section discusses questions that you should ask regarding ControlCenter design.
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ControlCenter Design Considerations
y What Objects are to be managed by ControlCenter?
Check ControlCenter Support Matrix: not all hosts, switches, arrays,or applications are supported
y What Operations will be performed by ControlCenter?
Correct licensing determines ControlCenter functionality
y Where will Agents be installed?
Some agents can only be deployed on a few types of servers
Some agents must have network or direct connectivity to the object
they manageSome customers will not allow agents to be installed on production
hosts
How many agents to deploy? Agent Load considerations
What objects are to be managed by ControlCenter? Not all hosts, switches, arrays, or applications are
supported by ControlCenter, so be sure to find out what the customer is interested in managing and
check the answer against the ControlCenter Support Matrix.
What operations will be performed by ControlCenter? Many licenses are used to enable the different
features of ControlCenter. Some of the licenses enable just a few features, while others enable many.
To find the correct licenses, it is important to find out exactly what features the customer is interested
in.
Where will agents be installed? While there is a lot of flexibility in the deployment of agents, there are
some restrictions. Some agents can only be deployed on a few types of servers. For instance, the
Storage Agent for NAS can only be deployed on a Windows server. Some agents must have network
or direct connectivity to the object they manage. For example, the Symmetrix SDM Agent must have
direct Fibre Channel connectivity to the Symmetrix that it is managing (specifically, it must have
access to the VCM database device).
Agent restrictions might also come from the customer. In many sites, the customer will prohibit agents
from being deployed on business production hosts. In this case, non-production hosts will have to be
found or purchased to run many of the agents.
The Performance and Scalability guidelines gives recommendations on the maximum number of
objects that each agent can manage without adversely affecting the performance of ControlCenter.
Hence the number of agents of a particular type that are deployed is a very important consideration.
The design should ensure that an agent is not overloaded.
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ControlCenter Infrastructure Configurations
y How many Objects, what size?
Infrastructure configuration depends on numbers of mediumobjects managed
Object size (small, medium, large) depends on number ofcomponents: devices, ports, etc.
Single-Host Distributed
One Store
CC ServerRepository
Store
Distributed
Two Store
Store
CC ServerRepository
Store
Distributed
Three Store
Store
Store
CC ServerRepository
Store
CC Server
StoreRepository
How many objects, and what size are they? Performance of a tool like ControlCenter can degrade as
the number of managed objects grows. The key factor that affects the ControlCenter infrastructure
design is the number of managed objects and their size. An objects size is dependent on the number of
components within the device that must be cataloged and monitored. The Performance and ScalabilityGuidelines lists the sizing rules for each type of managed objects.
The smallest ControlCenter environments can be managed by the single-host infrastructure
configuration, shown at the left. At certain thresholds of managed objects, distributed infrastructures
must be implemented instead by moving the Store component to one or more other hosts. The
distributed three-Store environment is the largest generally supported configuration, though even more
Stores might be implemented in carefully analyzed and planned customer environments.
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Example Infrastructure Sizing Chart
128 (8192)9101525100Distributed, 3 Store
64 (4096)560105080Distributed, 2 Store
32 (2048)28046060Distributed, 1 Store
24 (1530)19036045Single Host
Switches
(Ports)
Oracle
DBs
HostsArraysConfiguration
Dual 3.0 GHz processors, 2 GB RAM on each host
EMC ControlCenter Performance and Scalability Guidelines, 5.2 SP3
The Performance and Scalability Guidelines has many tables which show the object thresholds for
each ControlCenter configuration. This example is used when the infrastructure hosts all have dual 3.0
GHz processors and a minimum of 2 GB of RAM. Other tables in the document show the thresholds
for servers that have 1.0 GHz or 2.4 GHz processors. If the customers environment exceeds thenumbers of medium arrays, hosts, Oracle databases, or switches (or ports) on any row, the next larger
configuration must be deployed.
This table is used only when a maximum of two agents are deployed on each distributed Store. If more
agents are required on the infrastructure components, a different table should be used.
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Design Considerations
y What sort of Firewalls separate the ControlCenter
components?
Dynamic firewall rules are not allowed; static rules are
Network Address Translation (NAT) is allowed only with version 5.2
SP3 with some restrictions
DHCP not allowed for Infrastructure and Agents; static IP addresses
are
y How many Sites, at what distance?
Network latency is an important factorin ControlCenter performance
There can only be one Infrastructure
site, but agents can monitor from
multiple sites
200msAgent
50msWeb Console
15ms(8ms preferred)
Console
8msInfrastructure
Max LatencyInfrastructure to:
EMC ControlCenter Performance
and Scalability Guidelines, 5.2 SP3
How many sites, and at what distance? Network latency is a critical design factor for ControlCenter,
since large latencies can cause significant performance problems. This often presents challenges for
designing a solution that will manage objects at more than one site. As you can see from the table,
infrastructure-to-infrastructure latencies must be kept very low. This means that infrastructurecomponents will nearly always have to remain at the same siteon the same network segment if
possible. However, since agents can function even at very high latencies, they can frequently be
deployed to collect information at remote sites.
What sort of firewalls separate the ControlCenter components? Firewalls employing dynamic rules are
not allowed, but static rules firewalls are. Firewalls or other components that perform Network
Address Translation (NAT) are allowed only if the ControlCenter version is 5.2, service pack 3. Some
additional restrictions apply when using Network Address Translation, so see the ControlCenter
Planning and Installation Guide for further details. Port Address Translation (PAT) is not permitted.
DHCP is not allowed on the infrastructure and agent servers; they must have static IP addresses.
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Design Considerations (Cont.)
y Is more than one network used?
Multihoming is supported: separate network for production andmanagement
yAre fully qualified domain names (FQDN) used?
Infrastructure servers should be known by fully qualified domain
names
y What user rules are needed?
Is more than one network used? Customers will often segregate their production traffic on to a
separate network from the management software traffic. This often means that an agent will require
connectivity to the production network to collect data, and also the management network where the
infrastructure components are installed. This sort of connectivitycalled multihomingissupported by ControlCenter, but it can introduce some complexity in the placement of components.
Make sure you find out if multihoming is required before submitting the parameters to the designer.
Are fully qualified domain names (FQDN) used? Infrastructure servers should always be known by
their fully qualified domain names.
What user rules are needed? A ControlCenter administrator has a great deal of control over the tasks
that users can perform. Users can be limited to just performing a handful of tasks on specified objects,
if necessary.
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Design Considerations (Cont.)
y How will users access the software?
Java Console has strict network latency requirementsJava Console can not be used to access through a Network Address
Translation or Port Address Translation
Web Console has higher latency requirements, but monitoring
functionality only
Should not exceed 10 simultaneous Java or Web Consoles
How will users access the software? ControlCenter is accessed by either the Java Console (or just
Console) or the Web Console. Two networking issues make it difficult to use the Java Console from
outside of the infrastructure network. First, the network latency between the infrastructure and
Console must remain below 15 ms (preferably below 8 ms), and second, the Java Console can not beused to access ControlCenter through a Network Address or Port Address Translation (even in version
5.2 SP3).
Another Console consideration that the customer should be made aware of is the maximum number of
simultaneous active consoles. Only ten active consoles of any kind should be used at once. An active
Java Console is one that is displaying dynamically changing data: a Performance View, Alerts View,
or anything else that requires frequent updates. Most users will use the Java Console specifically for
monitoring this type of data, so you can assume that any open Java Console is in fact active. An active
Web Console is one that is in the process of displaying or refreshing a view.
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Using Remote Login to Access a Console
CC ServerRepository
Metaframe XP
Terminal Services
ConsoleFirew
all
8 ms long latency
Use Citrix Metaframe XP or Microsoft Terminal Servicesto overcome long latency or firewall issues
Remotely connect to a server next to the ControlCenter
Server where the Console has been installed
Metaframe XP
Terminal Services
A common solution to the latency and firewall issues is to use Citrix or Terminal Services to access a
local Console host from outside the network. In this way, the remote login software deals with the
high latency and address translation issues, and not the Console itself.Note however that the
Performance and Scalability Guidelines prohibit using remote access software to run a Consoleinstalled on an infrastructure host. The Console will have to be installed on a non-infrastructure host
within the firewall.
Another solution is to use the Web Console, which can tolerate a 50 ms latency, and can work through
firewalls that allow HTTP access. Unfortunately, the current version of the Web Console only
provides monitoring functionality, not management.
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Design Considerations
y What off hours are available for data collection?
Daily data collection can affect performance when agents are onproduction hosts
Short off hours windows can affect ControlCenter design
y How current must data views be?
Some data collection policies regularly collect data according to a
schedule
Longer schedules are better for performance, but cause data views
and alerts to be less current
What off hours are available for data collection? ControlCenter data collection policies that collect
data once per day can be scheduled for any time. The least intrusive time to perform these daily
collections is when there is little activity in the production environment, and no maintenance tasks are
being conducted on the infrastructure (export, backup, etc.). If this off hours time is at least as longas the time required to run all the daily collections, there will be no problem. However, if the off
hours window is short, the architect may have difficulty scheduling the collection tasks. Make sure
you find out when the best times for data collection are, and whether the customer can be flexible
about short off hours windows.
How current must data views be? Many ControlCenter data collection policies poll for data at
regular intervals measured in minutes. This means that some event such as a failure or change in status
will be detected much quicker than by the daily collections. The schedules can be made shorter or
longer than the defaults. Longer schedules are sometimes recommended for large environments; with
less polling, the CPU demands on the agent and the infrastructure are lower. However, longer data
collection policy schedules mean the data views and alerts will be less current. For instance, with a 30minute polling schedule, ControlCenter may take as long as 30 minutes to detect some critical error.
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Data Gathering
y ControlCenter Qualifier
Catalogs managed objects for submission to Solutions ValidationCenter (SVC)
Download from the SVC website: http://gig.corp.emc.com
An important document in the ControlCenter design data gathering process is the Qualifier. This
document catalogs the managed objects and servers in the customers environment. While it does not
cover all of the questions discussed in this module, it does list a large number of the technical facts that
an architect will need to know. A Qualifier is mandatory for all ControlCenter installations andupdates that are submitted to the Solutions Validation Center.
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Best Practices
y ControlCenter Reporting Know What You Have
Implementation case study for installing ControlCenter and usingreporting features
y ControlCenter Configuration and Control Manage What
You Have
Implementation case study for installing ControlCenter and
managing resources
y ControlCenter Performance and Scalability Guidelines
One of the most important documents for a designerStrict, complicated rules for proper ControlCenter design
The two implementation case study documents listed here present best practices for reporting and
managing with ControlCenter. The documents present a fictional business environment, and then
describe the ControlCenter features that address the fictional customers needs.
The Performance and Scalability Guidelines have already been mentioned as an important best
practice document for ControlCenter design. Although reading this complicated set of rules will be
difficult, it is worthwhile for anyone involved in ControlCenter planning, design, implementation, or
troubleshooting.
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TS Service Offerings - ControlCenter
y ControlCenter Planning and Design Service
Consultative engagement that provides the Customer an in-depthunderstanding of the storage management processes and
procedures required to maintain a highly efficient information
infrastructure, and how EMCs Open Storage strategy reduces
complexity and automates storage management
y ControlCenter Custom Implementation
Consultative service that installs ControlCenter 5.2 software into a
new data center or upgrades an existing ControlCenter 5.x data
center infrastructure to ControlCenter 5.2. Focuses on the
customer's current Storage Resource Management (SRM) practices.
ControlCenter related service offerings are listed. Details and services related documentation can befound on Powerlink (Home > Services > EMC Technology Solutions > Open Storage SoftwareOfferings).
The services listed in this course are a partial listing of all the available service offerings.
ControlCenter Planning and Design Service: The EMC ControlCenter Planning and Design Serviceis a multi-phased, on-site consulting service including facilitation and interview sessions. The serviceconsists of five phases performed over a five-day period. Upon completion of the service, the customergains an in-depth understanding of the storage management processes and procedures required tomaintain a highly efficient information infrastructure, and how EMCs Open Storage strategy reducescomplexity and automates storage management. The ControlCenter Planning and Design Servicedelivers a detailed roadmap to implement a highly efficient and cost effective Open Software andIndustry Standard Process Documentation infrastructure, based on the client's priorities for a totalbusiness solution.
ControlCenter Custom Implementation: The EMC ControlCenter 5.2 Custom Implementation is aconsultative service that installs ControlCenter 5.2 software into a new data center or upgrades anexisting ControlCenter 5.x data center infrastructure to ControlCenter 5.2. This implementationfocuses on the customer's current Storage Resource Management (SRM) practices.
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TS Service Offerings ControlCenter (Cont.)
y ControlCenter Health Check Assessment
Comprehensive, consultative assessment of a customer'sControlCenter infrastructure, business, and operational environments
emphasizing their storage resource management (SRM) practices
y SRM Custom Reporting
Comprehensive, consultative assessment of SRM reporting
requirements
Extends the value of StorageScope by delivering reports based on
EMC Technology Solutions best practices
EMC Technology Solutions installs and customizes the CrystalReport software and builds custom reports to meet the customers
business needs
ControlCenter Health Check Assessment: The EMC ControlCenter Health Check Assessmentservice provides a comprehensive, consultative assessment of a customer's ControlCenterinfrastructure, business, and operational environments emphasizing their storage resource management
(SRM) practices. The service includes a discovery phase including one-on-one interviews withcustomer subject matter experts combined with detailed discovery scripts. EMC Technology Solutions(TS) personnel examine the customer's SRM infrastructure, operational, and business requirements,then develop a detailed Project Plan mapped to the customer's ControlCenter storage infrastructure.
SRM Custom Reporting: The SRM Custom Reporting Service addresses a customers particularstorage resource management (SRM) reporting requirements, targeting areas that provide the greatestfinancial and operational benefits. This service leverages StorageScopes reporting foundation throughcustomized reporting and system integration based on their business requirements. It gives customersthe views and information they need in formats and forms they define. Once this service is complete,the customers IT team will be able to execute reports more productively, and their end customers willreceive information in a format that matches their requirements. This service offering is a
comprehensive, consultative assessment of SRM reporting requirements and extends the value ofStorageScope by delivering reports based on EMC Technology Solutions best practices. We workwith the customer's staff and end users to identify specific SRM reporting priorities and requirements.EMC automates collection and reporting of key storage management metrics, which helps thecustomer align storage management reporting with business and application drivers. Upon completionof this assessment, EMC Technology Solutions installs and customizes the Crystal Report software andbuilds custom reports to meet the customers business needs.
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TS Service Offerings ControlCenter (Cont.)
y ControlCenter Alerts and Monitoring
Assesses, identifies, and deploys critical alerts from the three alertcategories in an existing ControlCenter (software version 5.1.2 and
later) infrastructure based on the Customers business priorities
ControlCenter Alerts and Monitoring: The EMC ControlCenter Alerts and Monitoring Custom
Implementation service assesses, identifies, and deploys critical alerts from the three alert categories in
an existing ControlCenter (software version 5.1.2 and later) single data center based on the customers
infrastructure and business priorities. Two custom service tier options are available for the customer toselect from:
Tier 1 - Deploys and customizes up to 40 critical ControlCenter Alerts based on the customers
specific ControlCenter data storage environment and critical business/functional priorities. This
service tier provides a ControlCenter Alert foundation created by EMC Technology Solutions (TS)
personnel using EMCs best practices, which customers can leverage to deploy the remaining alerts at
a future date.
Tier 2 - Designs and deploys a customized ControlCenter Alert infrastructure identifying the critical
ControlCenter Alerts based on the customer specific data storage environment and critical
business/functional priorities.
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TS Service Offerings ControlCenter (Cont.)
y ControlCenter Framework Planning, Design and
IntegrationAssesses, identifies, and integrates ControlCenter (software version
5.1.2 and later) alerts and critical traps for Symmetrix, CLARiiON,
Celerra, Centera and SAN switches with the customer's existing 3rd
party framework software
EMC can address customers unique infrastructure and business
priorities integrating their Storage Management infrastructure into
their existing framework
The EMC ControlCenter Framework Planning, Design and Integration custom service assesses,identifies, and integrates ControlCenter (software version 5.1.2 and later) alerts and critical traps forSymmetrix, CLARiiON, Celerra, Centera, and SAN switches with the customer's existing 3rd party
framework software. The customer can select from two custom service tier options:Tier 1 - This service tier is delivered by EMC Technology Solutions personnel, this service is focusedon customers who have an existing 3rd party framework infrastructure in place and operational, andwould like EMC to integrate the Storage Management infrastructure into their framework.
Tier 2 - This service tier is delivered jointly by EMC Technology Solutions (TS) personnel leveragingour partnership with Bearing Point. This option is delivered as a 2 phased approach to frameworkintegration.
In phase one, Bearing Point and EMC perform an in-depth assessment of the customer's frameworkand storage infrastructure. They determine the maturity and capability of the framework environment,provide recommendations for improvement, and establish the architecture to integrate the storagemanagement infrastructure.
In phase two, they perform the integration of the framework with the managed storage infrastructure,along with any process improvements associated with the current operational efficiency of the
framework environment.
Note: EMC assumes responsibility for both ControlCenter and trap customization. Bearing Point
assumes responsibility for the framework tuning and process improvements as defined in phase one.
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VisualSRM
VisualSRM
Design and
Implementation
In this section, we will present questions regarding VisualSRM design. Think of these as questions to
ask a customer who has purchased VisualSRM or is thinking of doing so. Since StorageScope FLR
(File Level Reporter) is identical in design and function to VisualSRM, the issues presented in this
section also pertain to StorageScope FLR.
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VisualSRM Design Considerations
y What Objects are to be managed by VisualSRM?
Check VisualSRM Support Matrix: not all hosts or applications aresupported
y Where will Agents be installed?
Only Windows agents can scan database or mail server resources
Not every OS supported for cluster install
Some customers will not allow agents to be installed on production
hosts
Any database, mail server, or share can be scanned over the
network, but at a performance cost
What objects are to be managed by VisualSRM? Not all hosts, databases, or mail servers are
supported by VisualSRM, so be sure to find out what resources the customer is interested in managing
and check the answer against the VisualSRM Support Matrix.
Where will agents be installed? There are several design considerations related to agent installation.
Scanning of database and mail server resources can currently only be done from a Windows agent,
even though agents exist for UNIX, Linux, and Novell. Agents are currently supported on only one
type of clustered environment: Microsoft Cluster Services 2000. Also, since VisualSRM agents
consume significant CPU resources when scanning filesystems, customers might not allow agents to
run on production hosts.
These issues can often be overcome by scanning the resource remotely. If needed, any database, mail
server, or shared filesystem can be scanned over the network by a remote agent. However, this will
impose a performance cost: the scan will take longer to run, and it will put much more traffic on the
network.
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Design Considerations
y What Repository will be used?
Customer must purchase license
most expensive and robust option
Oracle
Customer must purchase licenseMicrosoft SQL Server
Free license
Max. 2 GB data sizetoo small for
production environments
Microsoft Data Engine (MSDE)
IssueRepository Database
If MSDE or SQL Server is used, database can be shared with VisualSAN
What repository will be used? Three possibilities exist: Microsoft Data Engine (MSDE), Microsoft
SQL Server, or Oracle. MSDE is free and can be installed directly from the VisualSRM installer, but
its 2 GB data size limit is too small for production environments. It should be used only when
demonstrating the product. Customers will have to purchase a license for the other two databases, oruse one they already own.
As an added benefit, a SQL Server database can be shared between VisualSRM and VisualSAN, if
both products have been purchased. VisualSAN does not support an Oracle database.
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Design Considerations (Cont.)
y How many Objects, what size?
Management System size and Repository depends onTotal number of files and folders scanned (assume 3 million per TB)
Numbers of medium databases and mail servers scanned
2 x 3.0 MHz
2 x 3.0 MHz
CPU
3 GBEvery 2 Days2840200 Mil
3 GBDaily281675 Mil
MemData Coll Freq# Mail# DB# Files
Using Oracle Repository (single host)
2 GB2 x 1.0 MHzDaily28611 Mil
2 GB2 x 1.0 MHzEvery 2 Days28923 Mil
2 x 3.0 MHz
2 x 3.0 MHz
CPU
3 GBEvery 2 Days281136 Mil
3 GBDaily28819 Mil
MemData Coll Freq# Mail# DB# Files
Using SQL Server Repository
EMC VisualSRM Performance and Scalability Guidelines 1.6.2
How many objects, and what size are they? The VisualSRM software must have adequate
performance capabilities to collect data and report on the managed objects. As the number of objects
becomes larger, a more powerful server and database is required. The specifications are determined by
the number of files and folders, the number of medium databases, and the number of medium mailservers to be scanned. It is often impossible to count the files and folders in a large environment, but
you can assume that an average customer environment contains 3 million files and folders per
Terabyte. The size of a medium database or mail server can be found in the VisualSRM Performance
and Scalability Guidelines.
Once you have determined the number of objects, use the tables in the Performance and Scalability
Guidelines to determine the management system capabilities and type of database used. Abbreviated
versions of the tables are shown here. You can see that the maximum supported number of files tops
out at 200 million if using an Oracle database, but only 36 million if using SQL Server. You will also
notice that if the number of objects becomes large for a particular database, data collection must be
done every other day.
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Design Considerations (Cont.)
y How much data space available on Repository and
Agents?Repository rough estimate: 1% of the scanned resource size
Agent rough estimate: 2 GB per TB scanned (min 4 GB)
y What off hours are available for scanning?
File scans can consume a lot of CPU power on agent hosts
Some scans can take hours to finishExchange mail server scans
can take an especially long time
How much data space is available on the Repository and agents? The millions of pieces of information
that VisualSRM components scan and store require an extremely large amount of space. While
detailed calculations appear in the Performance and Scalability Guidelines, you can estimate that the
space consumed by the Repository is approximately one percent of the scanned resource size. So if 10Terabytes are being scanned, you can assume that 100 Gigabytes are needed. This estimate includes
the default 30 days of trend collection, and a 20% growth factor.
Agents require some temporary space to process the scans before sending them to the Management
Server. Use a rough estimate of two Gigabytes per Terabyte scanned, with a minimum space of four
Gigabytes.
What off hours are available for scanning? File scans can consume a lot of CPU power on agent hosts,
and can sometimes take a long time to finish. If possible, this should be scheduled during off hours.
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Data Gathering
y VisualSRM Qualifier
Catalogs managed objects for submission to SVCDownload from: http://gig.corp.emc.com
The VisualSRM Qualifier catalogs the filesystems, mail servers, and databases to be managed. It also
prompts for many important questions such as the type of Repository database to be used, scanning
schedules, and other issues we have discussed in this course. Be sure to use it when gathering
information from the customer.
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Best Practices
y Storage Management Best Practices using VisualSRM
Scenarios for Reporting, Chargeback, Thresholds, and IntelligentActions
y Benefits of an Integrated Mid-Tier Storage Management
Offering using VisualSRM and VisualSAN
Using both products in conjunction to manage a SAN environment
Two best practices documents are available. Each gives common scenarios and usage of VisualSRM.
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TS Service Offerings VisualSRM
y VisualSRM Basic/Advanced Storage Assessment
Delivers an examination of the customer's current storage utilizationand makes recommendations for future storage needs
VisualSRM Basic Storage Assessment : The VisualSRM Basic Storage Assessment is a limited-
scope service that performs a high-level and storage-centric assessment of customer storage
environments. This service is targeted towards the Pre-Sales market. This service delivers an
examination of the customer's current storage utilization, and makes recommendations for futurestorage needs.
VisualSRM Advanced Storage Assessment: The VisualSRM Advanced Storage Assessment is a
limited-scope service that offers a competitive assessment of a customer's current storage environment.
This service delivers an examination of the customer's current storage utilization and makes
recommendations for future storage needs. The VisualSRM Advanced Storage Assessment provides
mid-market customers with a very informative storage utilization assessment and a directional path for
future storage allocation needs.
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VisualSAN
VisualSAN
Design and
Implementation
In this section, we will present questions regarding VisualSAN design. Think of these as questions to
ask a customer who has purchased VisualSAN or is thinking of doing so.
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VisualSAN Design Considerations
y Which objects are to be managed by VisualSAN?
Check VisualSAN Support Matrix: not all hosts, switches, orapplications are supported
y How many Switch Ports?
128 switch ports is maximum recommended for performance and
visualization reasons
Can (and frequently is) be exceeded
y What Repository will be used?
Customer must purchase SQL Server if usedCan share database with VisualSRM
Which objects are to be managed by VisualSAN? Once again, make sure you compare the customers
needs against the VisualSAN Support Matrix.
How many switch ports? The recommended limit of the number of managed switch ports is 128. Thetopology display becomes difficult to view, and some performance issues may arise if this limit is
exceeded. However, it is not a hard limit; many customers are successfully using VisualSAN in larger
environments.
What Repository will be used? VisualSAN requires either Microsofts MSDE or SQL Server database.
MSDE is free, but if the customer wants to use SQL Server, they will have to purchase it separately.
The same database can be used for both VisualSAN and VisualSRM to save costs.
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Design Considerations
y Which Agents will be used?
None: VisualSAN has minimal switch scanning without using agentsVisualSAN Host Agents: Volume configuration and capacity
VisualSAN Application Agents: Map applications to volumes
VisualSAN SMI Agents: Better HBA discovery and association of
HBAs to hosts
Navisphere Agents: CLARiiON discovery, pathing and LUN masking
Which agents will be used? VisualSAN can monitor with no agents, its own agents, and using EMC
Navisphere agents. Each agent retrieves slightly different information from the environment, so the
most information is available if each type of agent is deployed.
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Best Practices
y Benefits of an Integrated Mid-Tier Storage Management
Offering using VisualSRM and VisualSANUsing both products in conjunction to manage a SAN environment
y Managing the CLARiiON SAN Through its Lifecycle
Using Navisphere and VisualSAN together to manage arrays, SAN,
and applications
These best practice documents give examples of VisualSAN functionality in typical customer
environments. Please take a moment to review them.
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Course Summary
Key points covered in this course:
y The important technical data to be gathered about theuse of SRM solutions
y Gathering technical data for SRM solutions
y Interpreting and comprehending the gathered data
y Best practices for designing and implementing SRM
solutions
These are the key points covered in this training. Please take a moment to review them.
This concludes the training. In order to receive credit for this course, please proceed to the Course
Completion slide to update your transcript and access the Assessment.