PRIMECLUSTER Installation and Administration Guide 4.3

6.3 GDS Configuration Setup

The GDS (Global Disk Services) setup operations are described below.

• "6.3.1 Setting Up System Disk Mirroring"

  Set up system disk mirroring in both nodes, and then restart both nodes.

• "6.3.2 Setting Up Shared Disks"

  Set up the shared disk volumes.

Note

• If you are using the shared disk device, you must use GDS to manage that device.

• Execute the configuration setting of GDS after initializing the cluster.

• When using EC or REC function of an ETERNUS disk array without using PRIMECLUSTER GDS Snapshot, do not register the GDS class to the cluster application if the copy destination disk of EC or REC is registered in the class.
  When EC and REC are being synchronized or their equivalence is maintained, the access from the server to the destination disk may fail. Therefore, if the class in which the copy destination disk is registered is added to the cluster application, the access from the server to the copy destination disk fails. In this case, the cluster application fails over.