September 3rd, 2021

Computer

Thick & Thin

To reconfigure a thin-provisioned disk to eagerly-zeroed thick:

vmkfstools -c 100m virtualdisk.vmdk -d eagerzeroedthick

To reconfigure a thick-provisioned disk to thin:

vmkfstools -i virtualdisk.vmdk -d thin virtualdisk_thin.vmdk
mv virtualdisk-flat.vmdk virtualdisk-flat.vmdk.OLD
mv virtualdisk_thin-flat.vmdk virtualdisk-flat.vmdk

UNREGISTER in GUI
REGISTER in GUI
VERIFY DISK TYPE

rm virtualdisk-flat.vmdk.OLD
rm virtualdisk_thin.vmdk