VHD Size Reduction

re: VHD Size Reduction

Dave English — Wed, 16 Aug 2006 11:12:02 GMT

Presumably you meant "reduce a VHD by some 300M or so"

re: VHD Size Reduction

Adam Bell — Wed, 16 Aug 2006 13:02:47 GMT

G'Day John.

Err, 300K? I presume this is a typo? ;)

Cheers

Adam

re: VHD Size Reduction

jhoward — Wed, 16 Aug 2006 20:45:45 GMT

So people do read my blog afterall ;) Good spot guys. Thanks.
Cheers,
John.

re: VHD Size Reduction

col.fedmahnkassad@tiscali.fr — Fri, 18 Aug 2006 07:42:28 GMT

Hello John,

Sorry to be a newbee (and more: a french newbee...) but I tried to reduce a VHD Size, and I don't know how "perform a standard compact routine".

I use Virtual PC, and not Virtual Server, is it important?

Thanks for all

denis

re: VHD Size Reduction

jhoward — Fri, 18 Aug 2006 21:04:33 GMT

Hi Denis - welcome to Virtual PC :)

The "Standard Compaction" routine I referred to, and applies to dynamically expanding hard disks has a few steps:

- Make sure undo disks are not turned on. If they are, shut the guest down, merge undo disks and turn them off.
- From inside the guest, defragment the hard disks (a few times if possible)
- From the host, mount the Virtual Disk Precompactor.iso into the guest. By default this is in Program Files\Microsoft Virtual PC\Virtual MAchine Additions folder (IIRC)
- From the guest, the precompactor should auto-run. If it doesn't run the utility manually from the D: drive or whatever the CD/DVD drive is in the guest
- Shut the guest down
- From the host, go into the settings for the Virtual Machine
- Select the hard disk and click "Virtual Disk Wizard"
- From the wizard, Edit an existing virtual disk
- Browse to your VHD
- Choose the compact option

That should be it! The semantics are slightly different under Virtual Server in that you "Inspect" a disk from the web interface, but the steps needed in the overall process are exactly the same.
Cheers,
John.

Optimize Virtual Server hard disks, part II

Wictor Wilen — Sun, 20 Aug 2006 12:46:22 GMT

This is a follow up post to my last about optimizing the Microsoft Virtual Server hard disks.
If y

Compacta tu VHD creado con Virtual PC 2007

Guillermo Taylor @ Microsoft — Sun, 13 May 2007 19:03:45 GMT

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