11g RAC Latest

8/12/2019 11g RAC Latest

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Oracle 11gR2 New Features forOracle 11gR2 New Features for

RACRACWhat's New in Clusterware!!!What's New in Clusterware!!!OTN TourOTN Tour

(Costa Rica, Ecuador, Columbia, Peru)(Costa Rica, Ecuador, Columbia, Peru)


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About meIndependent Oracle Consultant - Summersky Enterprises

e-mail: [email protected]


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Oracle Clusterware Components

Grid Infrastructure

HAS Stack

CRS Stack

CRS CSS EVM CTSS ONS ASM oraagent orarootagent

GNS mDNS GIPCD GPnPD crflogd

crfmond

New in

11.2.0.2


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ClusterWare Files

Oracle Cluster Registry (OCR)

Oracle Local Registry (OLR)

Voting Disk

GPnP Profile

New in

11.2.0.2


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ORADB2ORADB1

Cluster Interconnect

SSKY1SSKY1 SSKY2SSKY2

ORADB4

SSKY4SSKY4

ORADB3

SSKY3SSKY3

Public Network

HAS

CRS

CSS

EVM

VIPVIP VIPVIP VIPVIP VIPVIP

NM

GM

OCR

Network Switch

Interconnect Switch

SAN switch

Oracle Clusterware

Summersky Enterprises LLC | | Murali Vallath | Slide: 6

CRS

CSS

EVM

HAS

CTSS

GPnP

DISKMON

CRS

CSS

EVM

HAS

CTSS

GPnP

DISKMON

CRS

CSS

EVM

HAS

CTSS

GPnP

DISKMON

OLR OLROLR OLR

AA_00 AC_02AB_01 AD_03 AE_04 AF_05 AG_06 AH_07

prddb

Vote Disk

OCR

CRFMOND/LOGD

GIPCD

New in

11.2.0.2


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GPnPD

Grid Plug and Play Daemon Started before CSS Allows easy addition and deletion of nodes Dynamic management of VIPs

Maintains essential cluster information in an XML profile: Cluster name and unique cluster identifier Public and private network interface mappings Location for the OCR and voting disks Location for the ASM parameter file

Manages and distributes the profile using the GPnPdaemon

Defines cluster name, networks and storage

New in

11.2.0.2



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GPnP ProfileNew in

11.2.0.2



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Cluster Stack Invocation

init

OHASD

orarootagent

cssdagent

oraagent

ASM

EVMD

MDNSD

GPNPD

CTSSD

CRSD

CSSD Monitor

GNSD

CSSD

SCAN

Listener

DB Instance

eONS

ONS

ASM Instance

VIP

SCAN VIP

GNS VIP

Network

GNSD



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Clusterware Log Directories

GRID HOMEGRID HOME loglog

e.g.. prddb1

e.g.. prddb1

evmd

agentagent

gpnpd

gnsd

client

gipcd

diskmon

srvm

ohasd

crsd

cssd

admin

ctssd

mdnsd

racgracg

ohasd

oh

asd

crs

d

crsd

orarootagent_root

oragent_oracle

oracssdmonitor_root

oracssdagent_root

orarootagent_root

oragent_oracle

oracssdmonitor_root

racgmain

racgevtf

racgeut

alert.log

crscrs

diagdiag

New in

11.2.0.2

acfssec

acfsreplroot

acfsrepl

crflogd

crfmond



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Clusterware Log Directories

GRIDHOME

GRIDH

OME

loglog diagdiag

tnslsnr

tnsls

nr

c

lients

c

lients

user_root

user_root

listener_scan3

listener_scan2

listener_scan1

host_

host_

adrci_dir.mif

crscrs

node

nod

e

sweep

stage

metadata

lck

incpkg

incident

cdump

alert

trace

stage

metadata

lck

incpkg

incident

cdump

alert

trace

sweep



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VIPs

Database VIP (also called RAC VIP)

Application VIP

HAIP (IC VIP)

Summersky Enterprises LLC | 11gR2 RAC | Murali Vallath | Slide: 12

New in

11.2.0.2


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Cluster Interconnect

Oracle uses the interconnect for cachesynchronization

Interconnect is also used for

Data blocks

Locks

SCN numbers Messages


New in

11.2.0.2


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Redundant Interconnects

CLUSTER_I NTERCONNECT

NIC Bonding

HAIP


New in

11.2.0.2


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Verify Deamons

$GRI D_HOME/ bi n/ cr sct l st at r es - t - i ni t

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

NAME TARGET STATE SERVER STATE_DETAI LS- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -or a. asm 1 ONLI NE ONLI NE devsr v1 St ar t edor a. cl uster _ i nt er connect . hai p 1 ONLI NE ONLI NE devsrv1or a. cr f 1 ONLI NE ONLI NE devsr v1or a. cr sd 1 ONLI NE ONLI NE devsr v1

or a. cssd 1 ONLI NE ONLI NE devsr v1or a. cssdmoni t or 1 ONLI NE ONLI NE devsr v1or a. ct ssd 1 ONLI NE ONLI NE devsr v1 OBSERVER



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RAC Background Process ACMS Atomic Controlfile to Memory Service

GTX0-j Global Transaction Process

RMSn Oracle RAC Management Processes (RMSn)

RMSN Remote Slave Monitor

LMS Global Cache Service Processes

LMON Global Enqueue Service Monitor

LMD Global Enqueue Service Daemon

LCK Lock Process

DBRM Database Resource Manager

PING Response time agent

Summersky Enterprises LLC | Oracle Real Application Cluster | Murali Vallath | Slide: 16

New in

11.2.0.2


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SCAN

SCAN Single Client Access Number Similar to a cluster alias available on Tru64 and VMSclusters

Helps load balance across the database cluster

Clients do not require VIP information Removes the requirement to change the client connection

if cluster changes

Must resolve to atleast one address on the public network

Best practice .. resolve to 3 addresses for the entire cluster


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SCAN

Allows clients to use EZConnect or simple JDBCconnections Each cluster will have 3 SCAN listeners, each

having a SCAN VIP defined as cluster resources

on network 1 A SCAN VIP/LISTENER will failover to another

node in the cluster Instance registers with local listener on its node Database REMOTE_LI STENER registers

instances with all SCAN listeners


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SCAN/GNS Configuration

GNS configuration

SCAN configuration


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Server Pools

Node 5 Node 6 Node 7 Node 8 Node 9 Node 10

oltp5 oltp6 oltp7 dwh8 dwh9 dwh10

Node 1 Node 2 Node 3 Node 4

ssky1 ssky2 ssky3 ssky4

sskypool2

Min=3Max=3

sskypool3

Min=3Max=3

sskypool1

Min=2Max=4


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Server Pools

Logical division of the cluster into pools of servers Applications (e.g. databases) can be configured to

run in one or more server pools

Managed by crsct l (applications), srvctl(Oracle)

Defined by 3 attributes:

MI N- minimum number of servers (default 0) MAX maximum number of servers (default 0 or -1)

I MPORTANCE 0 (least important) to 1000


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Server Pools

One-to-one mapping between a databaseservice and server pool

A database service can only be defined to

operate in one pool UNI FORM all servers in the pool

SI NGLETON one server in the pool

Resources are contained in logical groups ofserver pools


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Types of Server Pools

System defined Free

Generic

User defined


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Server Pools


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Server Pools


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Server Pools





sskypool2

Min=3

Max=3

sskypool3

Min=3Max=3

sskypool1

Min=2Max=4

Node 4

oltp5


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Server Pools





sskypool2

Min=3

Max=3

Importance = 20

sskypool3

Min=3

Max=3

Importance = 30

sskypool1

Min=3

Max=4

Importance = 10

Node 4

oltp5

Node 8

dwh8


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Q U E S T I O N SQ U E S T I O N SA N S W E R SA N S W E R S

Complete your evaluations


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[email protected]

| Murali Vallath | Slide: 30

Thanks for Listening

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