Enum - VirtualDiskType

Since
VI API 2.5


Enum Description

The types of virtual disks that can be created or cloned.

Enum Constants

NameDescription
eagerZeroedThick An eager zeroed thick disk has all space allocated and wiped clean of any previous contents on the physical media at creation time. Such disks may take longer time during creation compared to other disk formats. NOTE: This value may be removed before release if Satyam confirms that remote vmkfstools can implement this option by using preallocated followed by an explicit call to ZeroFillVirtualDisk_Task
preallocated A preallocated disk has all space allocated at creation time and the space is zeroed on demand as the space is used.
raw Raw device.
rdm Virtual compatibility mode raw disk mapping. An rdm virtual disk grants access to the entire raw disk and the virtual disk can participate in snapshots.
rdmp Physical compatibility mode (pass-through) raw disk mapping. An rdmp virtual disk passes SCSI commands directly to the hardware, but the virtual disk cannot participate in snapshots.
sparse2Gb A sparse disk with 2GB maximum extent size. Disks in this format can be used with other VMware products. The 2GB extent size makes these disks easier to burn to dvd or use on filesystems that don't support large files.
thick A thick disk has all space allocated at creation time. This space may contain stale data on the physical media. Thick disks are primarily used for virtual machine clustering, but they are generally insecure and should not be used. NOTE: This value may be removed before release if Satyam confirms that remove vmkfstools can implement this option by using preallocated (why should anyone care if we lazily zero the disk even though they didn't ask us to.
thick2Gb A thick disk with 2GB maximum extent size. Disks in this format can be used with other VMware products. The 2GB extent size makes these disks easier to burn to dvd or use on filesystems that don't support large files.
thin Space required for thin-provisioned virtual disk is allocated and zeroed on demand asthe space is used.

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