RAW device to the virtual disk migration
When trying to cold migrate a raw disk device VM of EVA Storage to a virtual disk in a DS8100 it fails with the following message: "incompatible device backup specified for device ´0´" the size of the LUN is Go 510 and appaers message when 100% is full 3 hours laters. I set the block size 2 Mb in the data store, but when I try to migrate a RAw of 100 GB on the same VM migration works very well and I use the new virtual disk without problems.
This could be a problem with the maximum of storage migration?
Could you tell me if you know another way to migrate this raw device on the virtual disk?
TKS!
Have you tried VMware Converter inside the guest who has the backend RDM?
Jase McCarty
Co-author of VMware ESX Essentials in the virtual data center
(ISBN:1420070274) Auerbach
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Tags: VMware
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DISC: Scsi0:0 [OPEN ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server-000001.vmdk' persistent R]
2012-08 - 05T 20: 00:06.022Z | VMX | DISKLIB-VMFS: ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server-000001-delta.vmdk ': open with success (10) size = 5620404224, hd = 213826. Type 8
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2012-08 - 05T 20: 00:06.035Z | VMX | DISKLIB-STRING: ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server.vmdk ': cannot open (the virtual disk parent has changed since the child was created.) The content of the virtual disk ID parent does not match the ID of parent for children's content).
2012-08 - 05T 20: 00:06.035Z | VMX | DISKLIB-VMFS: ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server-000001-delta.vmdk ': closed.
2012-08 - 05T 20: 00:06.035Z | VMX | DISKLIB-VMFS: ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server-flat.vmdk ': closed.
2012-08 - 05T 20: 00:06.035Z | VMX | DISKLIB-LIB: can't open ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server-000001.vmdk' with the virtual disk 0xa flags parent has changed since the child was created. The content of the virtual disk ID parent does not match the ID of parent for children (18) content.
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2012-08 - 05T 20: 00:06.035Z | VMX | Msg_Post: error
2012-08 - 05T 20: 00:06.035Z | VMX | [msg.disk.noBackEnd] unable to open drive ' / vmfs/volumes/4f4781a4-15d3bbb8-2681-782bcb6a6964/server/server-000001.vmdk' or one of the snapshot disks it depends on.
2012-08 - 05T 20: 00:06.035Z | VMX | [msg.disk.configureDiskError] reason: the virtual disk parent has changed since the child was created. The content of the virtual disk ID parent does not match the ID of parent matching the child content.
2012-08 - 05T 20: 00:06.035Z | VMX |Thanks again for any direction you can provide!
/ r
John
The parentCID of the snapshot must match the CID from its parent, as shown in the log file
"... The content ID mismatch (parentCID f72e60c7! = f05537b3)... »
Server.VMDK
CID = f05537b3
parentCID = ffffffffServer - 000001.vmdk
CID = a2b9ba8b
parentCID = f72e60c7---> f05537b3Make sure you change the file on the host using the vi editor or - if you want to change the file in Windows - use an editor who is aware of the line breaks Unix (do not use Notepad!)
Once this is done, I highly recommend that you take another cliché before you on the virtual computer. This prevents existing virtual disk files to be modified, so that you can return to this State where you need. After that everything works as expected, consider deleting all snapshots.
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ddb.longContentID = "b204c5bc523bbc83c01dd3ed926f96fa".
ddb.virtualHWVersion = "7".
DDB. Deletable = 'true '.Is there a chance to run ls-lisa from the command line (SSH) in the virtual machine folder and provide the output!
I ask because I'm a little worried about the timestamp of the hard (May 2011). Depending on the size of the files in the snapshot, it seems that the second virtual disk is not really used by the guest operating system and we could come back manually (by editing the .vmx file) on the resized basic disk (100 GB compared to 75 GB for snapshots) without losing important data!
If you want to revert manually,
- delete the virtual machine of the inventory
- backup and then edit the .vmx file (replace "WEBPDMAPPD_1 - 000003.vmdk" with "WEBPDMAPPD_1.vmdk")
- Move 3 snapshots in a directory temporary sub
- Add the virtual machine to inventory
- create a new snapshot to prevent the current hard files to be modified
- Turn on the virtual machine
If everything works as expected, you can delete the snapshot files moved and remove the snapshot created in the Snapshot Manager again.
André
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