Whether certain vSphere functionality is supported might depend on the storage technology that you use.

Networked Storage that ESX Supports compares networked storage technologies that ESX supports.

Networked Storage that ESX Supports

Technology

Protocols

Transfers

Interface

Fibre Channel

FC/SCSI

Block access of data/LUN

FC HBA

iSCSI

IP/SCSI

Block access of data/LUN

iSCSI HBA (hardware iSCSI)

NIC (software iSCSI)

NAS

IP/NFS

File (no direct LUN access)

NIC

vSphere Features Supported by Storage compares the vSphere features that different types of storage support.

vSphere Features Supported by Storage

Storage Type

Boot VM

vMotion

Datastore

RDM

VMware HA and DRS

VCB

Local Storage

Yes

No

VMFS

No

No

Yes

Fibre Channel

Yes

Yes

VMFS

Yes

Yes

Yes

iSCSI

Yes

Yes

VMFS

Yes

Yes

Yes

NAS over NFS

Yes

Yes

NFS

No

Yes

Yes

See Setup for Failover Clustering and Microsoft Cluster Service for support information concerning Microsoft clustering.