Setup Guide

26 Configuring Storage
PowerVault MD3000 and MD32x0 Storage
Enclosures
The PowerVault MD3000 and MD32x0 storage enclosures are designed for high
availability, offering redundant access to data storage. It features dual active or
active RAID controller modules, redundant power supplies, and redundant
fans. The PowerVault MD3000 and MD32x0 storage enclosures are designed for
high-performance environments that include either of the following:
• Two-node fully redundant XenServer hosts
• Multi-host storage access for up to four servers
XenServer hosts connected to the same RAID controller module can share
the storage volume on the PowerVault MD3000 and MD32x0 storage
enclosures. You can migrate VMs across two hosts using Citrix
XenMotion.
• The PowerVault MD3000 and MD32 x 0 storage enclosures are expandable
by simply adding up to three additional PowerVault MD1000 or
MD12x0
expansion enclosures.
• The entire array subsystem is managed from a single, user friendly software
application known as the Modular Disk Storage Manager (MDSM). MDSM
streamlines the management and maintenance of storage as it scales.
• In-band management from a XenServer host is not supported.
• To manage the PowerVault MD3000 and MD32
x 0 RAID enclosures using
MDSM, install the MDSM software on a separate supported Microsoft
Windows or Redhat Enterprise Linux management station.
Creating a Storage Repository on PowerVault MD3000 and MD32x0
Storage Enclosures
1 Create and configure a virtual disk using the PowerVault MD3000 and
MD32
x 0 MDSM software (installed on your management station). Ensure
that the newly-created virtual disk is controlled by the RAID controller to
which your XenServer hosts have access.
2 Map the newly-created virtual disk to the XenServer hosts. For more
information on managing hosts and virtual disks on the PowerVault
MD3000 and MD32
x 0 RAID enclosures, see the Dell PowerVault Modular
Disk Storage Manager User's Guide
or PowerVault MD32 x 0 Owner's
Manual
at support.dell.com/manuals .