IBM V7.2 manual # smit vg -Add a Volume Group, Create volume groups

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For the Split Mirror Restore Scenario we need FlashCopy tasks for the database data filesystems only without the ‘no copy’ option. We also need FlashCopy tasks for establishing reverse FlashCopy pairs for the database data filesystems. Although these could be defined with the no copy option this is not recommended. We create two group tasks: ts1dbdatafc and ts1dbdatarevfc.

The following table lists the FlashCopy tasks that we created:

Task

Description

ts1sap

SAP system establish

ts1sapwd

SAP system withdraw

ts1db

DB data and logs establish

ts1dbwd

DB data and logs withdraw

ts1dbdata

DB data establish

ts1dbdatawd

DB data withdraw

ts1dblog

DB logs establish

ts1dblogwd

DB logs withdraw

ts1dbdatafc

DB data establish (full copy)

ts1dbdatarevfc

DB data reverse establish (full copy)

5.On the Primary server, create volume groups, logical volumes, and file systems to be used by SAP and DB2. Then change the size of the file systems, mount the file systems, and change ownership of the file systems to the SAP administrator user and the DB2 instance owner respectively.

Below is a list of file systems that will be used for storing the data for the examples used throughout this paper:

The file systems for DB2 data are contained in /db2/TS1/sapdata1 to /db2/TS1/sapdata7 -

The file system for DB2’s active log files is contained in /db2/TS1/log_dir The file system for databases and the database

directory is contained in /db2/TS1/db2ts1/NODE0000 The file system for the SAP software is contained in /usr/sap

Note: The home directory for the DB2 instance owner must be created manually on each machine and will not utilize any pairs. DB2 archive logs do not have to be placed in a pair. They are treated and stored as you would normally do as part of your recovery strategy and plan.

Here are examples of how to create volume groups, logical volumes, and file systems on the Primary server:

Create volume groups

#smit vg ->Add a Volume Group

Configuring a Two Host System

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Contents October Page Trademarks AIX DB2Table of contents Abstract About the authors DB2 UDB suspended I/O overview DB2 UDB commands Set write suspendSet write resume Db2inidbDB2 UDB commands Overview of IBM 2105 Enterprise Storage Server Overview of Copy Services Overview of FlashCopy Overview of the ESS Copy Services Web interface Overview of ESS Command Line Interface CLI ESS Copy Services CLI command description SAP software Usr/sap SID transPage Sample configuration of SAP R/3 with DB2 UDB and IBM ESS Conceptual overviewInstalling Advanced Copy Services Installing the Command Line Interface on AIXCreating and assigning ESS logical volumes Lsdev -C grep Cd /usr/opt/ibm2105cli RsList2105s.shConfiguring a system with two hosts ESS volumes Logical subsystem Configuring a Two Host System # smit vg -Add a Volume Group Create volume groupsAdd a Volume Group Create logical volumesAdd a Logical Volume -VOLUME Group name dbvg Mklv -y saplv sapvg #smit lvCreate file systems #smit fsCrfs -v jfs -d saplv -m /usr/sap -A yes -p rw #smit fs Chfs -a size=14000000 /db2/TS1/db2ts1/NODE0000 Mount /usr/sapChown ts1admsapsys /usr/sap Usr/sap/TS1/SYS/profile as follows Usr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss Ts1sapDb2 catalog db TS1 on /db2/TS1 Snapshot database scenario Db2 set write suspend for databaseUsr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1db Db2inidb ts1 as snapshotSnapshot Database Scenario Standby database scenario Usr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1dbdataDb2inidb ts1 as standby Db2 rollforward database ts1 to end of logsUsr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss Ts1dblog Db2 rollforward database ts1 to end of logs and stop Split-Mirror online backup scenario Db2 connect to ts1 Db2 set write suspend for databaseDb2 backup database ts1 to /backupfs Db2 restore database ts1 from /backupfsUsr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1dbwd Db2 rollforward database ts1 to end of logs and stop orStartsap Split-mirror restore scenario Db2 set write resume for databaseMount /db2/TS1/sapdata6 mount /db2/TS1/sapdata7 Db2inidb ts1 as mirror

V7.2 specifications

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