Enterprise Volume Manager (Multi-OS) Version 2.0D Network Administration Guide

5–18 Enterprise Volume Manager (Multi-OS) Network Administration Guide

Configuring the EVM Network

HP recommends that the host agent be installed on each node in the cluster. When the

EVM V2.0D host agent is present on a cluster, EVM provides the following:

• EVM jobs can mount BCVs of noncluster volumes to individual active hosts and

can mount BCVs of cluster volumes to a cluster. The cluster volumes are visible to

all hosts in the cluster.

• EVM displays a host icon for each active host in the cluster, plus one additional

icon, in capital letters, that represents the cluster itself.

• EVM reports a Cluster property of

No for icons that represent individual hosts in

the cluster and Ye s for the icon that represents the cluster itself.

• EVM displays icons for noncluster volumes that are associated with individual

hosts in the cluster, plus icons for cluster volumes that are associated with the

cluster itself.

Windows NT

EVM host agent V2.0D for Windows NT is not cluster-aware, but is supported on host

clusters that use MSCS (Microsoft Cluster Service) for

Windows NT 4.0 Enterprise Edition, with the following limitations:

• A node becomes unavailable for job operations when the node running the EVM

host agent fails.

• If you are creating a BCV of the cluster quorum disk, do not mount the BCV on a

member of the same cluster.

• Host cluster support should be installed only on MSCS cluster nodes. Enabling

this feature on nonclustered systems causes undesirable side effects. Host cluster

support need be enabled on only one node of the cluster.