Cluster support

SnapDrive for Windows can be deployed in a variety of cluster configurations.

SnapDrive is supported with the following cluster technologies:

• Windows clusters

  To protect against node failure, Windows clustering fails over applications from the host node to the surviving node. In Windows 2003, this is called Microsoft Cluster Server (MSCS). In Windows 2008, this is Windows failover clustering.

• Active/active storage system configurations

  If a storage system fails, the partner storage system takes over the functions of the failed storage system, thus protecting data and ensuring continued storage availability.

  Note: SnapDrive LUNs are supported in an active/active storage system configuration; however, during cluster takeover and giveback, SnapDrive operations will fail for LUNs located on the active/active storage systems until the takeover and giveback process is completed.

• Microsoft clusters on ESX reference
  There are many documents and knowledge base articles that discuss the use of Microsoft clusters on ESX. You can find additional information about configuring your Microsoft cluster on an ESX server by reading these documents.
• Support for Microsoft cluster shared volumes
  SnapDrive for Windows supports LUN provisioning and Snapshot copy management on Microsoft cluster shared volumes (CSVs) using Hyper-V with Windows Server 2008 R2.
• Support for Microsoft clusters using FC RDM LUNs
  SnapDrive provides support for Microsoft clusters using FC RDM LUNs on two different virtual machines that belong to two different ESX servers. This is also known as across-the-box clusters.