HPSS Installation Guide September 2002 535
Release 4.5, Revision 2
Appendix G High Availability
G.1 Overview
The High Availability (HA) feature of HPSS allows a properly configured HPSS system to
automatically recover from a number of possible failures, with the goal of eliminating all single
points of failure in the system. The same functionality can be used to minimize the impact of
regularly scheduled maintenance and/or software upgrades.
The High Availability feature is only available on AIX platforms.
Failures of the following components will be protected against when using a properly configured
HA HPSS system:
• Core server
• Network-related
◆ adapters
◆ cables
• Disk-related
◆ adapters
◆ cables
◆ disks
• Power-related
◆ node power supply
◆ disk power supply
◆ power distribution strip