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Online Method to Upgrade Your Dell

PowerVault MD Storage Arrays From

Simplex to Duplex Mode

NOTE: Information in this document applies to Dell PowerVault MD3200, MD3220,

MD3200i, MD3220i, MD3600i, MD3620i, MD3600f, and MD3620f systems.

The Dell PowerVault Modular Disk (MD) RAID storage arrays support both

duplex (dual-controller) and simplex (single-controller) configurations. You can

upgrade your existing storage array from a simplex configuration to a duplex

configuration without taking the existing storage array offline.

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 contains only one RAID controller module and does not

support full RAID controller module redundancy, virtual disk path, and physical

disk channel redundancy.

Figure 1. Simplex MD Storage Array (With Expansion)

expansion

enclosures

(2)

2012 - 03

ModeUpgrade.fm Page 9 Thursday, March 29, 2012 1:43 PM

Summary of content (6 pages)

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ModeUpgrade.fm Page 9 Thursday, March 29, 2012 1:43 PM Online Method to Upgrade Your Dell PowerVault MD Storage Arrays From Simplex to Duplex Mode NOTE: Information in this document applies to Dell PowerVault MD3200, MD3220, MD3200i, MD3220i, MD3600i, MD3620i, MD3600f, and MD3620f systems. The Dell PowerVault Modular Disk (MD) RAID storage arrays support both duplex (dual-controller) and simplex (single-controller) configurations.
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ModeUpgrade.fm Page 10 Thursday, March 29, 2012 1:43 PM Figure 2. Newly Upgraded Duplex MD Storage Array (With Expansion) Asymmetric Cabling (Recommended) Symmetric Cabling expansion enclosures (2) NOTE: See the MD Family Disk Expansion SAS Quick Cabling Guide at dell.com/pvresources.
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ModeUpgrade.fm Page 11 Thursday, March 29, 2012 1:43 PM 5 Insert the second (new or replacement) controller module in the empty slot (slot 1) of the enclosure. For insertion procedures and slot labeling, see the Hardware Owner’s Manual for your MD storage array. 6 Connect the expansion enclosures (if present) to the controller module you added in slot 1. NOTE: Wait for the enclosure status LED to turn blue before proceeding to the next step.
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ModeUpgrade.fm Page 12 Thursday, March 29, 2012 1:43 PM a Open the AMW and select the Logical tab. b Right-click on any virtual disk in the list. c Select ChangeCache Settings... d Select all virtual disks in the list.
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ModeUpgrade.fm Page 13 Thursday, March 29, 2012 1:43 PM ___________________ Information in this publication is subject to change without notice. © 2012 Dell Inc. All rights reserved. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
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ModeUpgrade.