Shrink Thin disk in ESX 5 (jelly-shot)
March 11th, 2013
No comments
just summary 😉
- fill with zeros empty space in runing VM OS
- Windows – SDelete from Sysinternal LINK
- Linux – fill up each mount point/partition with command
dd if=/dev/zero of=ZEROFILE bs=1000000 ; rm -f ZEROFILE
- Check real size of allocated data in VM
du -h MyVM.vmdk
- From ESX shell , run command to shrink vmdk disk (shutdown VM first)
vmkfstools --punchzero MyVM.vmdk
- Check real size of allocated data in VM after (should be less)
du -h MyVM.vmdk
- log off
- If not Thin provisioned disk, use another post 😉
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