Unknown I/O Module Detected; Ultra 3 I/O Module Detected - HP StorageWorks MSA500 G2 User Manual

520 Unknown I/O Module Detected

Type: Error
Description: The controller has detected an I/O module that is not responding
with a known, good identifier.
Action: Replace the I/O module.

521 ULTRA 3 I/O Module Detected

Type: Error
Description: The controller has detected an Ultra3 I/O module.
Action: Replace the I/O module.
Troubleshooting 131