Sunday, February 2, 2020

provisioning of virtual disks

Thick provisioning:
consume all disk paces irrespective of data consumption
              Thick Provision Lazy-Zeroed: Space required for the virtual disk is allocated during                           creation. Data remaining on the physical device is not erased during creation, but is zeroed                   out on demand at a later time on first write from the virtual machine. This type is the                           default disk type
             Thick Provision Eager-Zeroed: Space required for the virtual disk is allocated during                          creation. Data remaining on the physical device is zeroed out when the disk is created

Thin Provision: A thin-provisioned disk uses only as much datastore space as the disk initially
needs. If the thin disk needs more space later, it can expand to the maximum capacity allocated to it.






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