I get many requests to extend the C:\ (or any other drive)
Most times these are for VMs – so it is pretty easy right? Extend the amount of disk allocated to the virtual machine, then extend in Computer Management – or using diskpart?
Well this does not always work – see, Windows does not really like you messing with system drive.
Well, Dell have come up with a brilliant tool called EXTPart
All you need to do now is provision the extra space to the VM, then run the tool at the command line and follow the wizard:
C:\>extpart.exe ExtPart - Utility to extend basic disks (Build 1.0.4) (c) Dell Computer Corporation 2003 Volume to extend (drive letter or mount point): c: Current volume size : 66285 MB (69504860160 bytes) Current partition size : 76285 MB (79990815744 bytes) Size to expand the volume (MB): 76285
that’s it – job done . . zero downtime (watch out of course . . this works differently if you have a clustered disk to extend – see: https://geekseat.wordpress.com/2011/01/25/replacing-clustered-storage-for-a-sql-cluster-emc-ce-ms-clustering/ )