Power Distribution
UltraSCSI RAID Enclosure 6–9
Optimum (n+4) Power Supply Configurations
The only difference between this configuration and the redundant (n+4)
configuration is the use of separate ac power sources.
To implement this configuration from a standard 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)
To implement this configuration from n+1 or an n+4 configuration requires
a second ac power source.
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 sources
•
Failure of five shelf power supplies
•
Failure of both power controllers
Summary of Contents for StorageWorks UltraSCSI DS-BA370 Series
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