Dell PowerVault MD3000i - Manual

Upgrading Your Dell™
PowerVault™ MD3000i From
Simplex to Duplex Mode
The Dell PowerVault MD3000i RAID enclosure supports both duplex
(dual-controller) and simplex (single-controller) configurations.
A duplex configuration allows for full redundancy between RAID controller
modules, non-I/O components, virtual disk paths, and physical disk paths.
A
simplex configuration offers no redundancy between RAID controller
modules or physical disk paths.
Figure 1 illustrates both types of configuration.
Figure 1. Simplex vs. Duplex MD3000i RAID Storage Array (With Expansion)
This document describes the steps used to upgrade your storage array from a
simplex configuration to a duplex configuration without taking the existing
storage array offline.
slot 0
Duplex MD3000i Storage Array
slot 1 slot 0 slot 1
Simplex MD3000i Storage Array
expansion
enclosures (2)
July 2007