Dell CLARiiON DAE2, Hardware Reference Manual

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2-6
2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference
Installing a DAE2
Figure 2-2
Plugging in the ac Line Cord
Highly available, write-caching configurations require that you
connect the first disk enclosure (EA 0, loop 0) to a Standby Power
Supply (SPS) for enclosure power. If you do connect a DAE2 to an
SPS (if, for example, the DAE2 is the first disk enclosure in a
CX700-Series or CX600-Series configuration), be sure that you
maintain power/loop integrity; always connect power/cooling
module A to SPS A, and module B to SPS B.
Figure 2-3 shows the power cord connections for a typical
CX700-Series or CX600-Series configuration.
Do not configure an ATA model DAE2 as EA 0, loop 0. ATA enclosures do not
support the boot and SPS requirements of the first disk array in a storage
system.
An integrated disk-and-processor enclosure, such as a CX500, CX400, CX300,
or CX200-Series DPE2, is always the first disk enclosure on the first loop (0,0).
You should not connect the first DAE2 in a DPE2 configuration to an SPS.
EMC2778
ac
Connector
Retention
Bail