Unable to mount a VxVM volume

book

Article ID: 100061381

calendar_today

Updated On:

Description

Error Message

UX:vxfs fsck: WARNING: V-3-20836: file system had I/O error(s) on meta-data. pass0 - checking structural files pass1 - checking inode sanity and blocks

UX:vxfs fsck: ERROR: V-3-26117: bc_read failure devid = x, bno = xxxxxxxxx, off = x, len = xxxx

 

Cause

The issue occurs when one of the devices is in an error state, causing the volume to show in DISABLE state.

 

Resolution

To address the issue
  1. Check the underlying device at the SAN level, as it should not be in ERROR state.. If any devices are found in such a state, then address the underlying issue (hardware issue).
  2. Once the issue is fixed, reattach the device using: vxreattach -br  
  3. Start the volume (if not ENABLED)
  4. Perform fsck using: /opt/VRTS/bin/fsck -V vxfs -o full -n /dev/vx/rdsk// (stressing on the -n option first).
  5. If the issue persists even after fsck, then the data needs to be restored from a valid/recent backup.

 

Issue/Introduction

An error is reported when attempting to mount a Veritas Volume Manager (VxVM) volume.