Creating LUNs

More information

• Rules for creating LUNs
  To avoid problems creating LUNs when using SnapDrive, you must keep some rules in mind.
• About volume mount points
  Volume mount points enable you to surpass the 26-drive-letter limitation.
• Creating a dedicated LUN
  You can use SnapDrive to create dedicated FC-accessed or iSCSI-accessed LUNs.
• Creating a shared LUN
  You can use SnapDrive to create FC- or iSCSI-accessed LUNs that are shared between clustered Windows servers.
• Creating a LUN as a quorum on a Windows 2003 cluster
  You can use SnapDrive to create and configure a LUN as a cluster quorum disk on a new Windows Server 2003 cluster.
• Windows Server 2008 failover cluster support
  SnapDrive supports the use of shared LUNs in a Windows Server 2008 failover cluster for all cluster configuration models using up to eight nodes.
• Configuring a Windows Server 2008 failover cluster witness disk
  SnapDrive for Windows and Windows Server 2008 provides a simpler way of configuring a shared disk as a witness disk than in earlier versions of SnapDrive and Windows Server. While SnapDrive still supports the previous method of configuring a quorum, it is no longer necessary to create a shared disk before creating a cluster, nor is it necessary to connect that shared disk to the node before that node can be added to the cluster.
• Creating an RDM LUN on a guest OS
  You can use SnapDrive to create FC, iSCSI, or ESX iSCSI accessed RDM LUNs on a guest OS.
• Using FC RDM LUNs in a Microsoft cluster
  You can use SnapDrive to manage a Microsoft cluster using RDM LUNs, but you must first create the shared RDM quorum and shared storage outside of SnapDrive, and add the disks to the virtual machines in the cluster.
• Creating a highly available Hyper-V virtual machine using SnapDrive
  You can make a Hyper-V virtual machine highly available by creating the VM on a SnapDrive shared LUN in a Windows 2008 failover cluster.