Alpa Performance Monitor Class Messages; Invalid Crcs Area Messages; Probable Cause; Recommended Action - HP StorageWorks MSA 2/8 - SAN Switch User Manual

Responding to Fabric Watch Messages

Alpa Performance Monitor Class Messages

Invalid CRCs Area Messages

Probable Cause

Errors have been detected at the FC frame. Invalid CRC messages occur when the
number of CRC errors in fibre channel frames for specific source ID (SID) and
destination ID (DID) pairs change. These messages may also be caused by dirty
equipment, temperature fluctuations, and aging equipment.
Note:
only large numbers of messages indicate a problem in this area.

Recommended Action

Replace low-quality physical components, optical cables, or SFPs. Clean
connectors. Check for damage from heat or age.

Messages

Message
Description
Troubleshooting
Message
Description
154
HP recommends that you set your high boundaries to five- or six-digit figures, as
FW-CHANGED, 4, alpaPerfCRC<element index> (ALPA Invalid CRCs
<element index>) value has changed. current value : <value>
Error(s)/minute. (info)
Explains that the cumulative number of CRC errors has changed. Provides
the new value.
This is an informational message. Respond to this message as is appropriate
to the particular policy of the end-user installation.
FW-ABOVE, 3, alpaPerfCRC<element index> (ALPA Invalid CRCs
<element index>) is above high boundary. current value : <value>
Error(s)/minute. (faulty)
Explains that the cumulative number of CRC errors has risen above the high
boundary. Provides the new value.
Fabric Watch Version 3.1.x/4.1.x User Guide