Introducing the UltraSCSI RAID Enclosure
Ultra SCSI RAID Enclosure 1–15
Redundant Power Supply Configuration
Adding three SBB shelf power supplies and a second ac power controller
provides significantly more power redundancy than the standard
configuration. A system power failure will occur for any of the following
conditions:
•
Loss of the ac power source
•
Failure of both ac power controllers
•
Failure of five shelf power supplies
DIGITAL suggests using this configuration to provide additional power
supply redundancy.
Optimum Power Configuration
Adding three power supplies, a second ac power controller, and a second ac
power source provides the optimum power redundancy. With separate ac
power sources for each ac power controller there are no single points of
failure.
_____________________ Note ______________________
For optimum operation each ac power controller should use a
different ac power source.
________________________________________________
A system power failure will occur for any of the following conditions:
•
Loss of both ac power sources
•
Failure of both ac power controllers
•
Failure of five shelf power supplies
•
Failure of the power source for power B and 1 power supply on bus A
•
Failure of the power controller on bus A and 1 power supply on bus B
•
Failure of the power controller on bus B and 1 power supply on bus A
•
Failure of the power controller on bus A and 1 power supply on bus B
DIGITAL recommends using this configuration to eliminate all single
points of power failure.
Summary of Contents for StorageWorks UltraSCSI DS-BA370 Series
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