Technical data

Message Type
Description Action
518 PERSISTENT MEM
ENABLED
Informational
Persistent memory data has
been successfully initialized.
519 PERSISTENT MEM
DISABLED
Informational
Persistent memory data
has not been successfully
initialized.
Some configuration data
may not be available.
520 UNKNOWN I/O
MODULE DETECTED
Error
The MSA cannot determine
thetypeofI/Omodule
installed in the bay.
Do the following:
1. Remove power from
any external storage
enclosures.
2. Remove power from the
MSA.
3. Re-seat all Fibre Channel
and SCSI I/O modules.
4. Apply power to any
external storage
enclosures.
5. Apply power to the
MSA.
6. Verify that the MSA
has the latest version
firmware installed.
Should the issue persist,
contact HP support.
maintenance and service guide
57