Requirements When Configuring NAS Devices as Quorum Devices

When you use a NAS device as a quorum device, the following are required:

• You must install the iSCSI license from your NAS device vendor.

• You must configure an iSCSI LUN on the NAS device for use as the quorum device.

• Cluster physical node names must be in the same LAN as the NAS device.

• When booting the cluster, you must always boot the NAS device before you boot the cluster nodes.

  If you boot devices in the wrong order, your nodes cannot find the quorum device. If a node should fail in this situation, your cluster might be unable to remain in service. If your cluster experiences these failures, you must either reboot the entire cluster or remove the NAS quorum device and add it again.

• A cluster can use a NAS device for only a single quorum device.

  You can configure other shared storage if you need additional quorum devices. Additional clusters using the same NAS device can use separate LUNs on that device as their quorum devices.