IBM V7.2 manual ESS volumes Logical subsystem

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The host name of the Backup server is MACHB.

The host name of the ESS Copy Services Server is ESSCSS.

The name of the SAP system is TS1; its system number is 00.

To achieve optimal performance the disks are spread equally over all 8 LSSs of the ESS.

The Primary server uses the source disks while the Backup server uses the target disks.

The Primary server accesses the ESS volumes, as follows:

ESS volumes

Logical subsystem

009 and 015

10

10A and 110

11

215

12

315

13

407

14

507

15

605

16

707

17

o

These devices are visible to AIX as o hdisk15

o hdisk9 o hdisk26 o hdisk11 o hdisk21 o hdisk41 o hdisk33, o hdisk29, o hdisk28,

ohdisk34.

The Backup server accesses the ESS volumes as follows:

ESS volumes

Logical subsystem

00B and 010

10

10B and 115

11

216

12

316

13

410

14

510

15

612

16

711

17

These devices are visible to AIX as: o hdisk16

o hdisk7 o hdisk13 o hdisk35 o hdisk39

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 Set write resume DB2 UDB commandsSet write suspend 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 the Command Line Interface on AIX Installing Advanced Copy ServicesCreating 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 Mount /usr/sap Chfs -a size=14000000 /db2/TS1/db2ts1/NODE0000Chown 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 Usr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1db Snapshot database scenarioDb2 set write suspend for database Db2inidb ts1 as snapshotSnapshot Database Scenario Standby database scenario Usr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1dbdataDb2 rollforward database ts1 to end of logs Db2inidb ts1 as standbyUsr/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 databaseUsr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1dbwd Db2 backup database ts1 to /backupfsDb2 restore database ts1 from /backupfs 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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