Sunday, August 09, 2009

VMware: Defrag Tips

Here are a few defrag tips when working with VMware ESX/ESXi.

  1. Use your guest OS defragmentation tools to defrag VMs.
  2. Always defrag your VM before you create a template.
  3. Do not defragment a drive while a VM has snapshotting enabled (your VM will grow in size, and slow stuff down
  4. Defragment before you take a snapshot
  5. VMFS filesystems do not need to be defragged, because their block-size is large and VMDK's are pre-allocated.

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