Thick to Thin

[gdelgado]

I am running ESXi 4.1 I am looking to convert some VM's that were built with Thick disk to Thin for space savings. How can about doing this and also are there any performance issues with using Thin disk as oppose to Thick disks on VM's?

Thank You..

[DSTAVERT]

You can use the VMware Converter Standalone to clone the VM to a new VM and change the disks to thin. No real performance difference. Do make sure you monitor free space, You can also use vmkfstools from the command line. http://pubs.vmware.com/vi35/server_config/sc_appb.21.1.html

[pcerda]

Hi,

You can use Storage vMotion to convert the virtual disks from thick to thin format. vCenter Converter is also useful to accomplish this goal.




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[AndreTheGiant · Accepted solution]

There isn't a big performance difference between thick and thin.

See: http://www.vmware.com/pdf/vsp_4_thinprov_perf.pdf

But thick is required in some cases (guest clustering, FT, ...).

Andre