HP StorageWorks MSA 2/8 HP StorageWorks Fabric Watch V3.1.x/4.1.x User Guide ( - Page 156
End-to-End Performance Monitor Class Messages, Invalid CRCs Area Messages, Probable Cause
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Responding to Fabric Watch Messages End-to-End 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. Recommended Action To reduce CRC messages, experiment with alternative topologies and cabling schemes. Clean equipment, check temperatures, and replace old hardware. Messages Message Description Troubleshooting FW-CHANGED, 4, eePerfCR (EE Invalid CRCs ) value has changed. current value : Change(s). (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. Message Description Troubleshooting FW-ABOVE, 3, eePerfCR (EE Invalid CRCs ) is above high boundary. current value : Change(s). (faulty) Explains that the cumulative number of CRC errors has risen above the high boundary. Provides the new value. The CRC error area of the End-to-End Performance Monitor class helps you tune your fabric. If a topology or cabling scheme creates a number of errors that exceeds the high boundary, consider alternative topologies/schemes to reduce the number. Message FW-BELOW, 3, eePerfCR (EE Invalid CRCs ) is below low boundary. current value : Change(s). (normal) 156 Fabric Watch Version 3.1.x/4.1.x User Guide