CSV (Cluster Shared Volumes)

Contributor(s): Ben Rubenstein

CSV (Cluster Shared Volumes) is a feature in Windows Server in which shared disks are concurrently accessible to all nodes within a failover cluster. The feature was first introduced in Windows Server 2008 R2 as a way to simplify storage with clustered Hyper-V virtual machines (VMs).

In a cluster without CSV, only one node can access a disk LUN at a time, so multiple disks are required for migration. With Cluster Shared Volumes, storage is simplified because multiple nodes can access the same disk at once and fewer overall disks are needed. CSV can also reduce potential disconnection time when performing a live migration of VMs. Cluster Shared Volumes offers resiliency benefits by creating multiple connections between nodes and the shared disk, meaning that if one part of a network goes down, communication can be accomplished through another part of the network.

CSV requires NTFS, but there are no hardware requirements beyond what is needed for a failover cluster.

This was last updated in June 2012

Continue Reading About CSV (Cluster Shared Volumes)

Dig Deeper on Microsoft Hyper-V management



Find more PRO+ content and other member only offers, here.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.


File Extensions and File Formats

Powered by: