LSI Megaraid physical device error counters and what SMART errors they imply
At work we have a number of LSI megaraid controllers & dell perc cards. Today I ran accross a system with a “Other Error Count: XX” assigned to the both drives in a raid 1 array. It took some googling but it turns out these are not ciritcal drive media errors, but some other SMART errors.
For reference here is a list of the LSI megaraid error codes and the corresponding SMART failure count (Thanks to the dell linux mailing list).
- Predictive Failure Count == Number of SMART errors.
- Media Error Count == Number of SMART errors related to the drive media.
- Other Error Count == Number of SMART errors not related to the drive.
See wikipedia for the SMART error codes.