Issue with VMWare ESXi snapshots
Posted on 2010-01-09
I have an issue with VMWare ESXi snapshots, please see below for setup information history of the issue:
Very small customer site with 3x vm's running on a Dell PE2970.
Datastore using local SAS drives.
All of the customers data held within VM file server.
Original VM created via P2V in feb 09 with a couple of snapshots taken since then.
The customer moved loads of data around on the server and then created another snapshot resulting in a further snapshot file size of 225gb!
Situation has now surfaced where we didnt have enough free space to even start the servers and thus received the following message:
msg.hbacommon.outofspace: there is no more space for the redo log
We ran the delete all snapshot commands through the VI client to consolidate the snapshots, this took a long time.
Once this had finished we had no snapshots visible in the snapshot manager but did not have any more free space.
Browsing the datastore showed the snapshot delta files still present.
As the original file showed a modified date of today I edited the .vmx file to point to the original .vmdk instead of the latest snapshot.
Booted and it was still the original version from feb 09 so immediately shtdown and reverted back to the original .vmx file pointing to the latest snapshot.
I now receive the following error:
Cannot open the disk ... Reason: The parent virtual disk has been modified since the child was created.
I have found various references to resolving this issue by editing the parentCID but I am not sure how I can do this with an ESXi and no service console?
Unfortunately my Linux skills are somewhat lacking.
The VM and associated snapshots are also very large!
As you probably guessed this a production server and we need to get this backup up asap!
Any help much appreciated.
Many thanks in advance.