[LU-9068] Hardware problem resulting in bad blocks

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Affects Version/s: Lustre 2.5.5
• Severity: 1
• Assignee: Peter Jones
• Reporter: Joe Mervini

Description

We encountered a hardware problem on the MDT storage device (DDN 7700) that resulted in bad blocks. The file system continued to operate but yesterday went read-only when it stumbled over a bad sector.

We ran fsck against the file system with the most current e2fsprogs which repaired the file system but dumped 90 objects/files into lost+found. All but 2 belonged to one user. But one of the files/objects belongs to root and has a low inode number #5749 that appears to be a data file.

We are very concerned that this particular file may be lustre relevant and would like your guidance on what we should do. (Obviously we are able to mount the file system ldiskfs.)

Issue Links

• is related to: LU-6696 ASSERTION( rc == 0 || rc == LLOG_PROC_BREAK ) failed: 0 changes, 0 in progress, 0 in flight: -5