Power Distribution
6–8 UltraSCSI RAID Enclosure
Redundant (n+4) Power Supply Configurations
This power configuration distributes ac power over both the power buses (A
and B). See Figure 6–6. Each bus has four power supplies.
To implement this configuration from an n+1 configuration requires the
user to order the following additional components:
•
3 – power supplies (DS–BA35X–HH)
•
1 – ac power controller (DS–BA35X–HE)
Figure 6–6 Redundant Power Configuration
CXO5797A
DIGITAL recommends this power configuration for complete data
protection with maximum redundancy of all enclosure power system
components. Any one of the following multiple error conditions can
comprise data integrity before you can take corrective actions:
•
Loss of the ac power source
•
Failure of five shelf power supplies
•
Failure of both power controllers
Power controller A distributes the ac power through the four black cords at
the left end of the device shelves. Power controller B distributes the ac
power through the four grey cords at the right end of the device shelves.
Содержание StorageWorks UltraSCSI DS-BA370 Series
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