IBM S85 pSeries 680 User Manual

Hardware Failure
Description
Failure Behavior If
HACMP Is Not
Configured
Extra Work
Required To
Provide Recovery
Action (in addition
to normal HACMP
configuration)
Recovery Action and
Behavior If HACMP Is
Configured
Node Outage or AIX
crash
Node unavailable None HACMP fallover. Application(s)
unavailable for brief time
during fallover.
Ethernet adapter
failure
Access to node
through Ethernet
lost, error log entry.
None HACMP swap adapter event
moves IP address to spare
adapter. Node Ethernet IP
address unavailable for an
extremely brief period as
address is swapped.
SSA Drawer Power
Supply Failure
None seen, error
log entry
None N/A (no fallover)
SSA adapter failure¹ None seen, error
log entry
None N/A (no fallover)
CPU power supply
or cooling
subsystem failure.
Node available, N+1
redundancy
None N/A (no fallover)
CPU power cord or
power supply circuit
failure
Node unavailable None HACMP fallover, application(s)
unavailable for a brief time
during fallover.
I/O drawer power
supply or cooling
subsystem failure.
Node available, N+1
redundancy
None N/A (no fallover)
I/O drawer power
cord failure
Fallover does not
happen if the
redundant power
supplies are cabled
to separate I/O rack
power distribution
units which are
powered by different
supply circuits.
None N/A (no fallover)
I/O power
distribution unit
power cord failure.
None None N/A (no fallover)
¹ Assumes “Quorum off” for volume group.
650 Service Guide

IBM S85 pSeries 680 Specifications

General

Brand	IBM
Model	S85 pSeries 680
Category	Server
Language	English