StorageWorks ESA10000, Руководство пользователя

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RA7000 and ESA10000 Storage Subsystems
1–20 EK–SMCPP–UG. A01
1.5
Power Configuration
There are two primary storage subsystem power configurations:
•
Standard – 4 + 1 power configuration includes one ac power controller and
five power supply SBBs on power bus A
•
Redundant – 4 + 4 power configuration includes one ac power controller
and four power supply SBBs on power bus A and four power supply SBBs
on power bus B
When there are less than four operational power supplies, the subsystem will
cease operating to preserve and protect the data. Table 1-2 lists the storage
subsystem power components and configurations.
CAUTION
A minimum of four operational SBB power
supplies are required for operation of the
subsystem. The fifth SBB power supply provides
redundancy.
Table 1–2 Storage Subsystem Major Power Components
Component Order No. Power Configurations
Standard Redundant
ac Power Entry
Controller DS-BA35X-HE 1 2
Shelf Power Supply
SBB DS-BA35X-HH 5 8
1.5.1 AC Power Entry Controllers
The ac input power is routed from the wall outlet to one of the power entry
controllers (Figure 1-12) that may have either of the following input voltages:
•
100 – 120 V ac, 60 Hz, single-phase, 12A
•
220 – 240 V ac, 50 Hz, single-phase, 6A
Each power entry controller has a system ON/OFF switch and distributes ac
power to all power supply SBBs on either power bus A or power bus B.