2V0-622 · Question #414
Which two storage technologies are supported for MSCS? (Choose two.)
The correct answer is C. iSCSI D. FC. Microsoft Cluster Service (MSCS) requires shared block storage that supports SCSI persistent reservations; iSCSI and Fibre Channel are the two supported protocols.
Question
Which two storage technologies are supported for MSCS? (Choose two.)
Options
- ANFS
- BVAAI
- CiSCSI
- DFC
How the community answered
(48 responses)- A10% (5)
- B4% (2)
- C85% (41)
Why each option
Microsoft Cluster Service (MSCS) requires shared block storage that supports SCSI persistent reservations; iSCSI and Fibre Channel are the two supported protocols.
NFS is a file-based, network-attached protocol that does not support SCSI reservations, which MSCS requires for node fencing and cluster disk coordination.
VAAI (vStorage APIs for Array Integration) is a set of hardware acceleration primitives offloaded to the array - it is not a storage connectivity protocol and cannot serve as shared storage for MSCS.
iSCSI presents block-level LUNs to ESXi hosts and supports the SCSI-3 persistent reservations that MSCS relies on for cluster arbitration, making it a supported MSCS storage protocol.
Fibre Channel also delivers block-level shared storage with SCSI-3 persistent reservation support, satisfying MSCS clustering requirements.
Concept tested: Supported shared storage protocols for VMware MSCS clustering
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-7F4D41A6-4D6A-4B52-B0EF-3B4B05F0F73E.html
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