The device, \Device\Harddisk0, has a bad block

[void269]

We have a Guest VM that has been failing it's system state backups for some time now.  Upon review we found the below event in the System event logs.

Event Type: Error
Event Source: Disk
Event Category: None
Event ID: 7
Date:  10/4/2011
Time:  1:37:13 PM
User:  N/A
Computer: SERVER1
Description:
The device, \Device\Harddisk0, has a bad block.

Also, this error which is the backup failing.

Event Type: Error
Event Source: VolSnap
Event Category: None
Event ID: 14
Date:  10/4/2011
Time:  1:37:13 PM
User:  N/A
Computer: SERVER1
Description:
The shadow copies of volume C: were aborted because of an IO failure on volume C:.

We have run CHKDSK /F but no issues were found and the error continues.  The server is Windows 2003 Stnd x32 SP2 on an ESX 4.1 Host with vCenter 4.1 build 345043.  Our storage is fiber attached via a SAN and is not reporting any issues on it's disks.  Any ideas would be helpful.

Thanks!

[continuum]

do you have a lots of snapshots for this VM ?
does the vmware.loig shows any write delays or other disklib errors ?

[void269]

No, there are no current snapshots on this VM.  Nor was i able to see any disk errors in the log files.

[continuum]

can you attach the vmware.log of that VM ?

[void269]

I am having issues accessing the current vmware log, however, the attached is the next latest which should have log data during the reoccurring issue.

[void269]

bump