I have checked the case and looks as though there are sector errors from the logs. You might want to contact the engineers from RAID Controller and see if they can do a deeper scan. I could also result from a broken RAID set and we are not able to fix this on the controller end. The RAID manufacture might be able to assist you on this part.

The System Volume not found is reported when we are not able to see the assigned volume group.



2009/01/08 07:46:46|end_request: I/O error, dev sdb, sector 2107736
2009/01/08 07:48:07|end_request: I/O error, dev sdb, sector 2107752
2009/01/08 18:51:29|end_request: I/O error, dev sdb, sector 72480
2009/01/08 20:06:43|end_request: I/O error, dev sdb, sector 2556244408