We have a Windows 2000 VM running in VMware Server 1. This VM's VMDK is make up of 17 separate vmdk files and the 13th vmdk file has been corrupted previously when the server encounter a power trip. This cause Windows 2000 unable to boot up at all.
It was partially resolve when I boot up the VM from Windows CD and run chkdsk to fix the inconsistency on the virtual harddisk. While Windows 2000 is working fine now, vmware server still prompts that a vmdk file failed the CRC check when we create a snapshot. So I just click abort. Now I am not able to power up this VM as it said that it can't lock the vmdk file. I also found many snapshots in this VM as well:
- w2k.vmdk (w2k-s001.vmdk - w2k-s017.vmdk)
- w2k-00001.vmdk (w2k-00001-s001.vmdk - w2k-00001-s017.vmdk)
- w2k-00002.vmdk (w2k-00002-s001.vmdk - w2k-00002-s017.vmdk)
- w2k-00003.vmdk (w2k-00003-s001.vmdk - w2k-00003-s017.vmdk)
- w2k-00004.vmdk (w2k-00004-s001.vmdk - w2k-00004-s017.vmdk) - the failed snapshot I have just done, each only 320k
How do I revert back to the previous snapshot since the snapshot manager failed to capture the current snapshot to reverse it? Can I just amend the VM harddisk setting to point to w2k-00003.vmdk from w2k-00004.vmdk?
There are some additional files created from the failed snapshot:
- w2k-snapshot4.vmsn
- w2k-snapshot4.vmen
- w2k-snapshot4.vmen.lck
- w2k-000030s008.vmdk.dfgshkgrw-tmp
btw, is there any way to cancel a defragment? It's stopping me from doing anything else! 
I also heard that we should not do defrag on a vmdk file with snapshot. Why?