EMC Symmetrix DMX-3 User Manual

Reliability and availability features
169
Data Integrity, Availability, and Protection
Figure 39 Symmetrix DMX dual-initiator example
Redundant power
subsystem
The Symmetrix DMX-3 has a modular power subsystem featuring a
redundant architecture that facilitates field replacement of any of its
components without any interruption in processing.
The Symmetrix DMX system power subsystem has two power zones
for redundancy and drive expansion. The DMX system connects to
two dedicated or isolated AC power lines. If AC power fails on one
line, the power subsystem automatically switches to the other line. If
any Symmetrix DMX-3 single power supply module fails, the
remaining power supplies continue to share the load. The Symmetrix
DMX senses the fault and reports it as an environmental error.
4 to 15 disks
drives per loop
Disk director 1
Disk director 16

EMC Symmetrix DMX-3 Specifications

General

Brand	EMC
Model	Symmetrix DMX-3
Category	Storage
Language	English