HP StorageWorks EVA Controller HSG V8.8 Software - Manual (Page 101)

Troubleshooting
101 Command Console V2.5 User Guide
Troubleshooting the HS-Series Agents
This section describes how to troubleshoot the HS-Series Agents.
Agent Sensitive to Alphanumeric Names
The Agent may not accept some alphanumeric name forms, particularly those
with embedded underscores. If you experience difficulties with a node name,
change the node name to one that the Agent accepts.
Invalid Cache Errors
Your controller module, cache module, and subsystem contain the configuration
information that is used for synchronization. This configuration information is
called metadata. The firmware reports an invalid cache error on an affected
controller if there is a mismatch between the metadata in the controller module
and a cache module containing unwritten data. This mismatch may result in the
loss of the unwritten cache data if the error is not cleared properly.
You may lose valid data if you clear unwritten cache data. The Client displays a
message and prompt box when an invalid cache error occurs. Use the CLI window
to clear unwritten cache data as the error is cleared. For information about how to
clear unwritten cache data, see the “Invalid Cache Errors” topic in online Help.