If /var/lib/cloud/data directory has been removed, does it have any impact to VM currently running and/or to VM on next boot?

Solution Verified - Updated -

Issue

  • On OpenStack instance (VM), XFS error was found when trying to read /var/lib/cloud/data directory.
kernel: XFS (dm-1): Metadata corruption detected at xfs_dir3_data_reada_verify+0x42/0x80 [xfs], block 0x8d010
kernel: XFS (dm-1): Unmount and run xfs_repair
kernel: XFS (dm-1): First 64 bytes of corrupted metadata buffer:
kernel: ffff88007a132000: 7b 0a 20 22 76 31 22 3a 20 7b 0a 20 20 22 69 6e  {. "v1": {.  "in
kernel: ffff88007a132010: 69 74 22 3a 20 7b 0a 20 20 20 22 73 74 61 72 74  it": {.   "start
kernel: ffff88007a132020: 22 3a 20 6e 75 6c 6c 2c 20 0a 20 20 20 22 66 69  ": null, .   "fi
kernel: ffff88007a132030: 6e 69 73 68 65 64 22 3a 20 6e 75 6c 6c 2c 20 0a  nished": null, .
kernel: XFS (dm-1): metadata I/O error: block 0x8d010 ("xfs_trans_read_buf_map") error 117 numblks 8
kernel: XFS (dm-1): Metadata corruption detected at xfs_dir3_data_reada_verify+0x42/0x80 [xfs], block 0x8d010
kernel: XFS (dm-1): Unmount and run xfs_repair
kernel: XFS (dm-1): First 64 bytes of corrupted metadata buffer:
kernel: ffff88000c6f4000: 7b 0a 20 22 76 31 22 3a 20 7b 0a 20 20 22 69 6e  {. "v1": {.  "in
kernel: ffff88000c6f4010: 69 74 22 3a 20 7b 0a 20 20 20 22 73 74 61 72 74  it": {.   "start
kernel: ffff88000c6f4020: 22 3a 20 6e 75 6c 6c 2c 20 0a 20 20 20 22 66 69  ": null, .   "fi
kernel: ffff88000c6f4030: 6e 69 73 68 65 64 22 3a 20 6e 75 6c 6c 2c 20 0a  nished": null, .
kernel: XFS (dm-1): metadata I/O error: block 0x8d010 ("xfs_trans_read_buf_map") error 117 numblks 8
  • To fix this issue, they run xfs_repair to the underlying volume and /var/lib/cloud/data directory has gone after repairing.

The questions are:
1. If /var/lib/cloud/data directory has been removed on running VM, does it have any impact to VM currently running?
2. And does it have any impact on VM on next boot?

Environment

Red Hat OpenStack 6

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