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 a shared disk unit, you must use GDS to manage that unit.

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

• To use EC or REC function of the ETERNUS Disk storage systems without using PRIMECLUSTER GDS Snapshot, do not add a GDS class that includes a copy destination disk of EC or REC to a cluster application.
  When EC or REC is either the synchronous processing in process or equivalency maintain status, a program running on the server may fail to access the destination disk with error. Therefore, if the class that includes the copy destination disk is added to a cluster application, the program running on the server may fail to access the destination disk. This may lead to a failover of the cluster application.