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SUSE 9 OS Fails to Mount the LUNs Mapped by the S6800 Storage Device

Publication Date:  2012-07-20 Views:  196 Downloads:  0

Issue Description

The SUSE OS is installed on the server. The S6800 maps two LUNs to the server. The SUSE OS can mount one LUN but fails to mount the other LUN.

Alarm Information


Handling Process

Run the fsck command to detect the two LUNs. The following messages are displayed:
# fsck /dev/sdc
fsck 1.36 (05-Feb-2005)
# fsck /dev/sdd
fsck 1.36 (05-Feb-2005)
e2fsck 1.36 (05-Feb-2005)
/dev/sdd: clean, 186/34537472 files, 3512326/69043200 blocks
These messages indicate that the sdc file system is defective. As the sdc file system uses the xfs format, run the xfs_check command to detect the sdc file. The following messages are displayed.
# xfs_check /dev/sdc
* ERROR: mismatched uuid in log
*            SB : 62ca1076-c6ec-41f7-b3a0-e357a4ed5ac7
*            log: c3c12f12-1e59-4cd8-b5fb-65c6e0ab6db4
ERROR: The file system has valuable metadata changes in a log which 
needs to be replayed.  Mount the file system to replay the log, and 
unmount it before re-running xfs_check.  If you are unable to mount 
the file system, then use the xfs_repair -L option to destroy the log 
and attempt a repair.
Note that destroying the log may cause corruption -- please attempt a 
mount of the file system before doing this.
Run the xfs_repair -L command to restore the sdc file system. The LUN can be mounted but the data on the LUN is lost.

Root Cause

As the OS can mount one LUN, this fault may be caused by the damage of the LUN file system.


If multiple servers share the S3100/S3200/S6800 storage device and each server has independent LUNs, you must purchase the partition license file. If multiple servers mount the same LUN at the same time, the data on the LUN is damaged and the file system is damaged.