The content ID of the parent virtual disk does not match the corresponding parent content ID in the child.

Recently I have worked again and again on the following issue: Cannot open the disk '/vmfs/volumes/4a496b4g-eceda1-19-542b-000cfc0097g5/virtualmachine/virtualmachine-000002.vmdk' or one of the snapshot disks it depends on. Reason: The parent virtual disk has been modified since the child was created.   My customer was not able to power on a virtual machine. As mentioned in the following KB: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1007969 Content… Read More »

SRM replicated datastores with the snap prefix

I've done many SRM implementations since version 1.x and always there was the same "esthetic" problem: SRM renames replicated datastore with the snap prefix after recovery. Fortunately since SRM 5.x it is possible to change the behavior via GUI: The option is not checked by default so I recommend to check it. To access the advanced settings for… Read More »

How to reset password of domain administrator account?

Recently, I needed to use my lab and I forgot domain administrator password to Windows 2012 R2 Domain Controller. Fortunately I was able to recover it by doing following steps: Boot Windows 2012 R2 Domain Controller from Windows 2012 R2 ISO. Click Next. Click Repair your computer. Click Troubleshoot. Change directory to D:\Windows\system32 and run commands: copy Utilman.exe… Read More »

How to properly move vCenter to a different host machine?

VMware has updated recently KB about migrating vCenter Server 4.x/5.0.x to a different host machine. The KB is available here. Recently I have done some vCenter 5.x migrations and there are below some additional tips. If you have some 3rd vCenter plugins (e.g. NetApp, HP) installed, you have to unregister it and later install again on a new… Read More »