Appendix. Troubleshooting
The topics in this section provide troubleshooting information related to your
DS8000. Topics covered include analyzing, verifying, understanding, managing, and
handling various problems.
Analyzing generic alert traps
The storage unit generates generic alert traps. The traps are sent by an SNMP
agent to report asynchronous events.
Generic trap alert identifiers
coldStart (Generic 0)
Issued whenever the SNMP agent is reinitializing. Configuration data has
changed.
warmStart (Generic 1)
Issued whenever the SNMP agent is reinitializing. Configuration data might
change.
authenticationFailure (Generic 4)
Issued whenever an SNMP message was received but could not be
authenticated.
Analyzing service information messages (SIMs) for S/390 and zSeries
systems
Service information messages (SIMs) are generated by a storage unit for S/390 and
zSeries hosts. Before installation, you can use the customization work sheets to
record the following service information: the SIM severity level and how often the
stroage unit sends the SIMs (0-9 times) to the console. During installation, either
you or the IBM service sales representative must enter this information into the
system.
SIM message types
The following SIM message types are generated by the storage unit.
Direct access storage device (DASD) SIM
Tracks DDM failures and problems.
Media SIM
Tracks data check problems on the media.
Storage unit SIM
Tracks storage unit, power control, and other hardware problems.
SIM
severity levels
1 acute
An irrecoverable error with possible loss of data. This severity level only
applies to DASD SIMs.
2 serious
An irrecoverable error or a data check with loss of access to data.
© Copyright IBM Corp. 2004, 2005 153
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