HP StorageWorks 3000/5000 Enterprise Virtual Array updating product software guide (VCS 3.110) (5697-8108, March 2009)

Unknown storage system
Symptom
HP Command View EVA reports an unknown storage system for a storage system that should be
displayed.
Cause of the error
HP Command View EVA may have lost communication with the controllers. Two possible scenarios
are:
• The HBA in the management server may have timed out commands to the controllers. See
“Unknown storage system—cause 1” on page 60 below.
• The controllers are running a version of VCS that HP Command View EVA does not recognize.
See “Unknown storage system—cause 2” on page 60.
Unknown storage system—cause 1
When the fabric is heavily loaded, the FC adapter in the management server may time out commands
to the controllers. If this occurs, the storage system appears in the Unknown state.
Corrective Action for Unknown Storage System—Cause 1
This scenario should correct itself in less than one minute. Alternately, you can perform a Rediscover
operation to initiate new commands to the controller.
Unknown storage system—cause 2
HP Command View EVA can only manage controllers that are running supported VCS versions.
Corrective Action for Unknown Storage System—Cause 2
Ensure that you are running the HP Command View EVA version that is compatible with VCS 3.110.
See the “EVA software version compatibility” table in the HP StorageWorks EVA software compatibility
reference to determine which version of HP Command View EVA you should be running. Then, upgrade
Command View EVA to a compatible version. See “Required documentation” on page 13 for the link
to this document.
No storage systems found
Symptom
HP Command View EVA does not display any storage systems, even though they are on the fabric.
Cause of the error
Several conditions can cause this symptom. Table 8 lists some possible causes of these errors and
their corrective actions.
Troubleshooting60