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Appendix G High Availability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535
G.1
Overview................................................................................................................... 535
Architecture ......................................................................................................... 536
G.2
Planning.................................................................................................................... 537
Before You Begin................................................................................................ 537
HACMP Planning Guide..................................................................................... 537
G.3
System Preparation ................................................................................................. 545
Physically set up your system and install AIX.................................................... 545
Mirror rootvg ....................................................................................................... 545
Diagram the Disk Layout .................................................................................... 546
Plan Shared File Systems .................................................................................... 546
Mirror Shared JFS logs........................................................................................ 547
Connect Robotic Tape Libraries.......................................................................... 547
G.4
Initial Install and Configuration for HACMP...................................................... 548
Install HACMP.................................................................................................... 548
Setup the AIX Environment for HACMP ........................................................... 548
Initial HACMP Configuration............................................................................. 549
Configure DCE, SFS, and HPSS......................................................................... 558
G.5
Configure HA HPSS................................................................................................ 558
HA HPSS Scripts................................................................................................. 558
Finish the HACMP Configuration ...................................................................... 561
Define HA HPSS Verification Method ............................................................... 564
Setup Error Notification ...................................................................................... 565
crontab Considerations ........................................................................................ 567
G.6
Monitoring and Maintenance................................................................................. 568
clstat..................................................................................................................... 568
G.7
Metadata Backup Considerations.......................................................................... 569
G.8
Using Secure Shell (ssh) .......................................................................................... 569
G.9
Important Information ........................................................................................... 570
G.10 Routine HA Operations .......................................................................................... 570
Startup the Cluster ............................................................................................... 570
Shutdown the Cluster .......................................................................................... 571
Verify the Cluster ................................................................................................ 572
Synchronize the Cluster....................................................................................... 572
Move a Resource Group...................................................................................... 574
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575
HPSS Installation Guide
Release 4.5, Revision 2
September 2002
11
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