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ESXi machine: "The parent virtual disk has been modified since the child was created"

One of my virtual servers gives me this error when I start it:

"A general system error occurred: The parent virtual disk has been modified since the child was created. The content ID of the parent virtual disk does not match the corresponding parent content ID in the child"

These are the files in its folder:

SIA-KB-01-000001-delta.vmdk SIA-KB-01.vmxf
SIA-KB-01-000001.vmdk vmware-10.log
SIA-KB-01-Snapshot1.vmsn vmware-11.log
SIA-KB-01-flat.vmdk vmware-12.log
SIA-KB-01.nvram vmware-13.log
SIA-KB-01.vmdk vmware-14.log
SIA-KB-01.vmsd vmware-15.log
SIA-KB-01.vmx vmware.log

Can I do something to fix it?

ASKER CERTIFIED SOLUTION

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

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ltpitt

ASKER

Yes I've tried and sadly it lead me to an unbootable machine (I had backupped before trying so I tried accurately inserting correctly CID values various times)

Sadly yes: the VM was started directly from the main disk instead of using the snapshot disk :(

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

If you start the VM without the snapshot attached, there is a risk of corruption, when the parent and child do not match.

ltpitt

ASKER

I was able to get the "original" parent from a backup and, after restoring it, I've started the VM using the snapshot disk: PERFECT! :D

ESXi machine: &quot;The parent virtual disk has been modified since the child was created&quot;

ESXi machine: "The parent virtual disk has been modified since the child was created"