TECHNICAL NOTES

This document describes the few exceptions in which DC-powered VNX series systems

differ from their AC counterparts. Topics include:

◆ Power considerations......................................................................................... 2

◆ Cabling DC power and powering the system up and down .................................. 8

◆ Installing a DC-AC inverter ................................................................................ 13

In general, you configure, operate, and maintain DC-powered systems as you would

the more common AC systems except:

◆ DC power supplies in the VNX5100, VNX5300, and VNX5500 disk processor

enclosures (DPE) and DAE6S disk array enclosures include power on/off switches

or buttons.

◆ DC storage systems do not include standby power supplies (SPS).

◆ DC storage systems that support file I/O include 1U DC-AC inverters for the control

stations.

• In VNX5100, VNX5300, and VNX5500 systems, the inverters occupy the

physical space reserved for an AC SPS.

• VNX5200, VNX5400, and VNX5600 systems install the inverters directly above

the control stations.

For the most up-to-date and complete set of VNX series documentation, visit the EMC

online support website at:

http://mydocs.emc.com/VNX/

EMC

DC-Powered VNX™ Series Enclosures

Installation and Operation Guide

P/N 300-012-880

Rev 03

April 11, 2014

EMC VNX Series

Other manuals for EMC VNX Series