Oracle10gR2RACNewFeatures -dharam

8/14/2019 Oracle10gR2RACNewFeatures -dharam

1/38

1 2005 Julian Dyke

Oracle 10.2RAC New Features

Julian Dyke

Independent ConsultantWeb Version

juliandyke.com


2/38

2005 Julian Dyke juliandyke.com2

CLUVFY


3/38


CLUVFY Introduced in Oracle 10.2

Read-only utility that verifies configuration of cluster at eachstage of cluster installation

Detects many common configuration errors

Eliminates time-consuming troubleshooting

Supplied with Oracle Clusterware

Can be installed separately

Can also be used with Oracle 10.1

Requires -r 10gR1 switch


4/38


CLUVFY Written in Java - requires JRE

Supplied with JRE

Alternatively can use existing JRE

Must set CV_JDKHOME environment variable

On Red Hat Linux also requires cvuqdisk package Supplied on Oracle Clusterware CD

rpm --Uvh cvuqdisk-1.0.1-1.rpm


5/38


CLUVFY Checks

stages

components

Stage checks

Verify all steps for specified stage have been completed

Component checks

Verify specified component has been correctly installed

sh runcluvfy.sh -helpsh runcluvfy.sh stage -helpsh runcluvfy.sh comp -help


6/38


CLUVFY Stages include:

-post hwos post check for hardware and operating system

-pre cfs pre-check for CFS setup

-post cfs post-check for CFS setup

-pre crsinst pre-check for Oracle Clusterware installation

-post crsinst post-check for Oracle Clusterware installation

-pre dbinst pre-check for database installation

-pre dbcfg pre-check for database configuration


7/38


CLUVFY Components include:

nodereach Checks reachability between nodes

nodecon Checks node connectivity

cfs Checks CFS integrity

ssa Checks shared storage accessibility

space Checks space availabilitysys Checks minimum system requirements

clu Checks cluster integrity

clumgr Checks cluster manager integrity

ocr Checks OCR integrity

crs Checks Oracle Clusterware (CRS) integritynodeapp Checks node applications exist

admprv Checks administrative privileges

peer Compares properties with peers


8/38


CLUVFY For example, to check configuration before installing Oracle

Clusterware on node1 and node2 use:

sh runcluvfy.sh stage -pre crsinst -n node1,node2

Checks:

node reachability

user equivalence

administrative privileges

node connectivity

shared stored accessibility

If any checks fail append -verbose to display more information


9/38


Oracle

ClusterwareFile Mirroring


10/38


OCR and Voting Disk Mirroring RAC databases contain

controlfiles

datafiles

online redo logs

server parameter files

password files archive log files

In addition RAC clusters contain

Oracle Cluster Repository (OCR)

formerly SRVM file Voting Disk

formerly CSS file


11/38


OCR and Voting Disk Mirroring In Oracle 10.1 and below

only one copy of OCR and Voting Disk

can be corrupted

can be deleted

can be inaccessible

loss of either prevents access to all databases in cluster

In Oracle 10.2 and above

OCR can be mirrored

maximum two copies

Voting Disk can be mirrored recommended three copies


12/38


OCR and Voting Disk Mirroring

DatabaseFiles

Instance 2

Node2

Instance 1

Node1

DatabaseFiles

Database Files

OCR

Voting Disk 1

Oracle 10.1


13/38


OCR and Voting Disk Mirroring

OCR Mirror

Voting Disk 2

DatabaseFiles

Instance 2

Node2

Instance 1

Node1

DatabaseFiles

Database Files

OCR

Voting Disk 1 Voting Disk 3

Oracle 10.2


14/38


DBCA

DatabaseCloning


15/38


DBCA - Database Cloning Creating a Clone Template

Manage Templates


16/38


DBCA - Database Cloning

Create database template from an existingdatabase (structure and data)


17/38



Choose database from which tocreate the template


18/38



Specify location where RMANcopies of datafiles will be created.

Specify name anddescription of template


19/38



Choose locations of database files


20/38


DBCA - Database Cloning Template creation completion message


21/38


DBCA - Database Cloning Creating a Clone Database

Create Database


22/38



Manage Templates

Select nodes on which tocreate cluster database


23/38


24/38


DBCA - Database CloningSelect Global

Database Name

Select SID


25/38



Select SID

ConfigureManagement Options


26/38



Select SID

Set Passwords


27/38



Select Storage Option(ASM)


28/38



Select ASM Diskgroup(DISKGROUP1)


29/38



Select Oracle-ManagedFiles (OMF)


30/38



Optionally enable FlashRecovery Area and Archiving


31/38



Optionally enable FlashRecovery Area and Archiving

Specify optional; custominitialization scripts


32/38



Add Services


33/38



Set initialisation parameters


34/38



Configure storage


35/38



Create Database or GenerateDatabase Creation Scripts


36/38




Log files in$ORACLE_HOME/cfgtoollogs/dbca/CLONE


37/38





38/38


Thank you for listening

[email protected]

Documents

Oracle10gR2RACNewFeatures -dharam