TECHNICAL NOTES
This document describes the few exceptions in which DC-powered VNX series systems
differ from their AC counterparts. Topics include:
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Cabling DC power and powering the system up and down .................................. 8
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In general, you configure, operate, and maintain DC-powered systems as you would
the more common AC systems except:
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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.
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DC storage systems do not include standby power supplies (SPS).
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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
