Comments on: Defragmenting virtual machine disk files

By: ScottElsdon

ScottElsdon — Fri, 03 Jun 2011 04:15:53 +0000

Hi all, interestign reading,

I wondered if defragmentsing woudl gain space back on a large FP server. In the past, I’ve used diskkeeper to derfag a phys server, consolodatign the cluseters we gained around 10 gig on a 300 gig drive after defragmentation on a box that had never been defragged before. Would there be a similar advantage on a virtualised box, or is the OS cluster usage transparant at the physical SAN layer ?

By: Pasture

Pasture — Wed, 25 Feb 2009 14:16:59 +0000

Great, this site doesn’t work properly with Opera…nevermind, just copy-paste from my first post.

By: Yao

Yao — Wed, 11 Feb 2009 20:16:59 +0000

defragment should be run in guest os, also run sdelete to write null after running defrag can get vm-backup better.