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N8300 file system offline issue

Publication Date:  2014-09-19 Views:  90 Downloads:  0
Issue Description
One file system of N8300 falled into offline mode due to an unexpected power outage. Customer tried to use “fs online” command from master account but failed.

Alarm Information
File system is offline, master runs fsck command but failed.  The output says that the file system needs full fsck.


Handling Process
1. Login into N8300 with support account and run a full fsck on the corrupted file system:


Here I use file system fs223 as an example. You should change to the corrupted file system name in your environment.

Note: Depends on the size of the file system, the fsck operation make take a long time. Don’t interrupt the running command since this may cause unpredictable problem.

2. After the full fsck completes successfully, you can try to online the file system and check its status:
Root Cause
After power outage, the file system is corrupted and needs to be fully checked and repaired. We should login into N8300 as support account and run a full fsck to fix it.
Suggestions
1. Before running fsck, please contact our support. This command may cause data loss if it's misused.

2. Try to avoid any unexpected power outage, this may cause problems to disks. Make sure you have redundant power supplies.

END