You can diagnose problems with SAN Volume Controller,
the uninterruptible
power supply,
and the IBM® System Storage® Productivity
Center,
or the master console server
using either the command-line interface (CLI) or the SAN Volume Controller Console. The
diagnostic LEDs on the SAN Volume Controller nodes
and uninterruptible
power supply units
also help you diagnose hardware problems.
Error event logs
By understanding the error
event log, you can do the following:
- Manage the error event log
- View the error event log
- Describe the fields in the error event log
Error codes
The following topics provide
information to help you understand and process the error codes:- Error reporting
- Understanding the error event log
- Understanding the error codes
- Understanding the cluster error codes
- Determining a hardware boot failure
- Understanding the boot error codes
- Performing the node rescue
- Understanding the node rescue error codes
- Understanding the create cluster error codes
- Marking errors as fixed
- Checking the status of a node
If the node is showing a boot message, failure message,
or node error message, and you determined that the problem was caused
by a software or firmware failure, you can restart the
SAN Volume Controller node
to see if that might resolve the problem. Perform the following steps
to properly shut down and restart the node:
- Follow the instructions in MAP 5350: Powering off a SAN Volume Controller node.
- Restart only one node at a time.
- Do not shut down the second node in an I/O group for at least
30 minutes after you shut down and restart the first node.