A general system error occurred: platform-specific error 18. Converter version 5.5.2 (1890136)

[jjgunn]

Trying to P2V a Win 2008 R2 machine. Largest Physical disk is 2 TB. Yes dynamic disks. Not re-sizing, Failed at 96% after more than 2 days

Here's what I found in the worker log (attached)

2014-11-02T20:34:32.355-08:00 [09880 info 'task-1'] GetManagedDiskName: Get disklib file name as vpxa-nfcssl://[DataStore] [MachineName]_3-000002.vmdk@[HostName]:902!52 92 92 fc 65 6a fb b3-81 c1 cd f4 83 68 a8 29

2014-11-02T20:34:33.652-08:00 [09880 warning 'Default'] [,0] [NFC ERROR] NfcFssrvrProcessErrorMsg: received diskLib error 18 from server: NfcFssrvrOpen: Failed to open '[DataStore] [MachineName]-000002.vmdk': 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

2014-11-02T20:34:33.652-08:00 [09880 info 'Default'] Sysimgbase_DiskLib_OpenWithPassPhrase failed with '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' (error code:18)

2014-11-02T20:34:33.652-08:00 [09880 info 'Default'] Error 18 opening disk vpxa-nfcssl://[DataStore] [MachineName]-000002.vmdk@[HostName]:902!52 fb 2e 73 fc 7f cb 0a-aa d4 66 33 f4 4f 99 aa.

2014-11-02T20:34:33.652-08:00 [09880 warning 'Default'] ERROR 18 opening disk vpxa-nfcssl://[DataStore] [MachineName]-000002.vmdk@[HostName]:902!52 fb 2e 73 fc 7f cb 0a-aa d4 66 33 f4 4f 99 aa.

2014-11-02T20:34:33.652-08:00 [09880 error 'task-1'] [BaseDiskSetComputer::DoOpen] OpenDisks failed, mntapi error: 290

2014-11-02T20:34:33.652-08:00 [09880 error 'task-1'] [BaseDiskSetComputer::AnalyzeErrorAndThrow] Error occurred when opening disk set, MNTAPI_ERROR = 290 MNTAPI errorType = 2, errorCode = 18

2014-11-02T20:34:33.652-08:00 [09880 error 'task-1'] TaskImpl has failed with std::Exception: Platform-specific error 18

2014-11-02T20:34:33.652-08:00 [09880 info 'task-1'] TargetVmManagerImpl::DeleteVM

Please let me know if you've seen this before? Multiple searches turned up nothing

[POCEH]

Hmmm, how you modify the parent disk?!? Of course this is not normal situation, you must not manipulate the destination disks and/or VM in order to proceed normally...

[jjgunn]

That's what is strange. Nobody was even here (Sunday evening) when the disks were supposedly modified?

I'll check to see if another application was trying to run a snapshot on Sunday night.

Thanks for the input

[jjgunn · Accepted solution]

Forgot about this thread. Answering my own question here.

A 3rd party backup application was automatically trying to backup the newly created VM (& every VM in the environment) before it had completed.

We've stopped the auto backup for every VM that enters the environment to avoid this in the future.