hwaplatinum.blogg.se - Vmware vsphere client 6.0 for mac 10.10

There is no significant difference in performance for sequential I/O between the different types of virtual disks. Except for building guest clusters (clusters across VMs on different hosts), there is no need to use these types of disk. (Click on image for larger view) There are also Raw Device Mapping ( RDM) disks where a disk at ESXi level is mapped 1:1 to a VM (like a Passthrough mode), with two different types of compatibility (virtual or physical mode). Note that you can also change the type of each individual disk, by choosing Configure per disk on the new HTML5 client shown as follows.

You can choose the disk provisioning type during virtual disk creation, but you can change the type using a cold VM migration across two datastores, or using Storage vMotion (if you have at least ESXi Standard edition). Unused space is available for use by other VMs.

Thin VMDK: Space required for the thin-provisioned virtual disk is allocated and zeroed on demand as space is used.

The entire disk space is reserved and unavailable for use by other VMs. Before writing to a new block, a zero has to be written, increasing the input/output operation per second ( IOPS) on new blocks compared to eager disks. This space may contain stale data on the physical media.

Thick or lazy zeroed thick VMDK: A thick disk has all space allocated at creation time.

Such disks may take a long time during creation compared to other disk formats.

An eager zeroed thick disk has all space allocated and wiped clean of any previous content on the physical media at creation time.

The type of virtual disks are mainly the same since vSphere 4.0: Storage types at the VM logical level There are different types of virtual disks depending on the provisioning method, pre- allocated or dynamic. But note that USB datastores are just unsupported by VMware. For local storage, with vSphere 6.x it's possible to use USB disks, not only as boot disks, but also to run VMs.

VMware vSphere supports different types of storage architectures, both internally (in this case the controller is crucial, that must be in the HCL) or externally with shared SAS DAS, SAN FC, SAN iSCSI, SAN FCoE, or NFS NAS (in those case the HCL is fundamental for the external storage, the fabric elements, and the host adapters). Mac OS X 10.5 Leopard Server, 10.6 Snow Leopard Server, 10.7 Lion client or server, 10.8 Mountain Lion client or server and 10.9 Mavericks client or server are fully supported on VMware Fusion while running on supported Apple hardware.