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The example of a new installation with two servers and one storage array in an active/passive configuration is a typical configuration for a cluster. In an active/passive configuration the active node of the cluster hosts the virtual server and the second node is a dedicated redundant server able to take over and host the virtual server in the event of a failure on the active node. The example describes a generic database application.
This configuration does not include DMP. For information about DMP and clustering:
See Overview of configuration tasks for adding DMP DSMs.
Key points about the configuration:
A Microsoft failover cluster must be running before you install InfoScale Storage.
Therefore, you need to set up the hardware and install the operating system on both systems and establish the failover cluster before installing InfoScale Storage.
Installing InfoScale Storage requires a reboot, but a reboot on the active cluster node causes it to fail over. Use a "rolling install" procedure to install InfoScale Storage first on the inactive cluster node, then move the active cluster resources to the other node, and install on the now inactive node.
SFW enables you to create a dynamic mirrored quorum. The quorum resource maintains the cluster database and critical recovery information in a recovery log. Microsoft clustering only supports a basic physical disk and does not enable you to mirror the quorum resource. One advantage of SFW is that it provides a dynamic mirrored quorum resource for Microsoft clustering. If a quorum disk fails, a mirror on another disk (another plex) takes over and the resource remains online. For this configuration, Veritas recommends creating a three-way mirror for the quorum to provide additional fault tolerance. If possible, do not use the disks assigned to the quorum for any other purpose.
