Troubleshooting

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Troubleshooting procedures help you diagnose problems.

How to get information, help, and technical assistance
If you need help, service, technical assistance, or want more information about IBM® products, you can find a wide variety of sources available from IBM to assist you.
User interfaces for servicing your system
The system provides several user interfaces to troubleshoot, recover, or maintain your system. The interfaces provide various sets of facilities to help resolve situations that you might encounter.
Starting statistics collection
The system collects statistics over an interval and creates files that can be viewed.
Event reporting
Events that are detected are saved in an event log. As soon as an entry is made in this event log, the condition is analyzed. If any service activity is required, a notification is sent, if you set up notifications.
Battery operation in the node canister: 2145-SV2 and 2145-SA2
The node canister in the node caches critical data and holds state information in volatile memory.
Understanding battery operations of a SAN Volume Controller node
The SAN Volume Controller nodes contain two replaceable battery units.
Resolving a problem
Described here are some procedures to help resolve fault conditions that might exist on your system.
Recover system procedure
The recover system procedure recovers the entire system if the system state is lost from all nodes. The procedure re-creates the storage system by using saved configuration data and is also known as Tier 3 (T3) recovery. The saved configuration data is in the active quorum disk and the latest XML configuration backup file. The recovery might not be able to restore all volume data.
Backing up and restoring the system configuration
You can back up and restore the configuration data for the system after preliminary tasks are completed.