Deployment Guide

Preparing Your Systems for Clustering 49

In the

Select Hosts to Add

list, click the names of the first cluster node,

then click the

Add

button located to the right of the list. The host moves

to the

Hosts in Group

list.

Repeat step 4 to add the second cluster node to the host group.

To create the host group, click

Creating Disk Groups and Virtual Disks

In some cases, the virtual disks may have been bound when the system was

shipped. It is still important, however, to install the management software

and to verify that the desired virtual disk configuration exists.

You can manage your virtual disks remotely using PowerVault Modular Disk

Storage Manager. A minimum of one virtual disk is required for an

active/passive cluster configuration; at least two virtual disks are required for

an active/active cluster configuration.

Disk groups are created in the non-configured capacity of a storage array, and

virtual disks are created in the free capacity of a disk group. The hosts

attached to the storage array read and write data to the virtual disks.

NOTE: Before you can create virtual disks, you must first organize the physical

disks into disk groups and configure host access. You can then create virtual disks

within a disk group.

To create a virtual disk, use one of the following methods:

• Automatic Configuration

• Manual Configuration

See the Dell PowerVault Modular Disk Storage Manager User’s Guide for more

information on how to create Disk Groups and Virtual Disks.

It is recommended that you create at least one virtual disk for each

application. If multiple NTFS volumes are created on a single virtual disk

using Windows Disk Management, the volumes failover together, rather than

individually from node-to-node.

NOTE: It is recommended that you use a RAID level other than RAID 0 (which is

commonly called striping). RAID 0 configurations provide very high performance,

but do not provide the level of availability required for the quorum resource. See the

documentation for your storage system for more information about setting up RAID

levels for the system.

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