Quantcast
Channel: VMware Communities: Message List
Viewing all articles
Browse latest Browse all 232869

seems likes the delta disk is corrupt

$
0
0

Hello All,

 

I have a VM which had to be hard reset because the storage (FC SAN) hosting the VM became unavailable for a few seconds. In fact I had to hard reset all VMs hosted on that shared storage. All other VMs except one came back online without much issues.

 

The VM (W2K) which failed had a single snapshot. This VM had 4 disks (created during the P2V). Of these 4 disks, here is how they were used:

 

disk0 --> OS disk. The delta disk for this disk also seems to have problems. Failed to clone using vmkfstools.

disk1 --> Application disk. Successfully cloned and merged the snapshot delta to a new disk. Has no problems.

disk2 --> Application disk. Successfully cloned and merged the snapshot delta to a new disk. Has no problems.

disk3 --> Data disk. The delta disk for this disk also seems to have problems. Failed to clone using vmkfstools.

 

VM hardware version: 7

ESXi version: 5.1

Filesystem: vmfs3.

 

The disks (disk0 & disk3) have a problem, and cannot be cloned using vmkfstools. When trying to clone the clone gets stuck at 8% and fails with the error: "Clone: 9% done.Failed to clone disk: Bad file descriptor (589833)".

 

 

When I tried to poweron the problem VM; after booting for few seconds, it powered off with the error: "The redo log of myvm_3-000001.vmdk is corrupted. If the problem persists discard the redo log."

I have not modified the VM since it failed to poweron. I did create a copy of VM folder so I guess the datastore does not seem to have any bad blocks. I been trying a few things on this copy of the VM with little success. Although I have not verified it, I believe the CID/Parent CID are probably correct with correct chain record.
I don't have a backup so the only option is to recover data from the VM. The data on the VM is important. I wanted to understand how should I proceed to recover the data from the disk0 & disk3. Any pointers are welcome.
I don't have access to the VM data or files right now but if required I can post the logs and vmdk descriptor files tomorrow.
Thanks.

Viewing all articles
Browse latest Browse all 232869

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>