IBM V7.2 manual Configuring a system with two hosts

Page 21

Configuring a system with two hosts

Overview

1.Install the ESS CLI on the Primary Server.

2.Assign ESS disks to both servers.

3.Install DB2 for AIX on both servers.

4.Install a standard SAP R/3 system on the Primary Server.

Figure 2 shows the configuration we used for the FlashCopy examples.

PrimaryBackup

ServerServer

MACHAMACHB

SAP R/3 TS1

LSS 10

 

LSS 11

 

009

00B

10A

10B

hdisk15

hdisk16

hdisk26

hdisk13

015

010

110

115

hdisk9

hdisk7

hdisk11

hdisk35

LSS 12

 

LSS 13

 

215

216

315

316

hdisk21

hdisk39

hdisk41

hdisk42

LSS 14

 

LSS 15

 

407

410

507

510

hdisk33

hdisk40

hdisk29

hdisk38

LSS 16

 

LSS 17

 

605

612

707

711

hdisk28

hdisk37

hdisk34

hdisk43

 

Copy Services Server ESSCSS

 

Figure 2. FlashCopy configuration

The key points to note from Figure 2 are:

The host name of the Primary server is MACHA.

Configuring a Two Host System

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Contents October Page AIX DB2 TrademarksTable of contents Abstract About the authors DB2 UDB suspended I/O overview Set write suspend DB2 UDB commandsSet 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 Usr/sap SID trans SAP softwarePage Conceptual overview Sample configuration of SAP R/3 with DB2 UDB and IBM ESSInstalling Advanced Copy Services Installing the Command Line Interface on AIXCreating and assigning ESS logical volumes Cd /usr/opt/ibm2105cli RsList2105s.sh Lsdev -C grepConfiguring a system with two hosts ESS volumes Logical subsystem Configuring a Two Host System Create volume groups # smit vg -Add a Volume GroupCreate logical volumes Add a Volume GroupMklv -y saplv sapvg #smit lv Add a Logical Volume -VOLUME Group name dbvg#smit fs Create file systemsCrfs -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/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss Ts1sap Usr/sap/TS1/SYS/profile as followsDb2 catalog db TS1 on /db2/TS1 Db2 set write suspend for database Snapshot database scenarioUsr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1db Db2inidb ts1 as snapshotSnapshot Database Scenario Usr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1dbdata Standby database scenarioDb2inidb 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 Db2 connect to ts1 Db2 set write suspend for database Split-Mirror online backup scenarioDb2 restore database ts1 from /backupfs Db2 backup database ts1 to /backupfsUsr/opt/ibm2105cli/rsExecuteTask.sh -v -s Esscss ts1dbwd Db2 rollforward database ts1 to end of logs and stop orStartsap Db2 set write resume for database Split-mirror restore scenarioDb2inidb ts1 as mirror Mount /db2/TS1/sapdata6 mount /db2/TS1/sapdata7

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