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22 9176/D173 D
ISK SUBSYSTEM - SITE PREPARATION GUIDE
Rackmount Considerations
The rackmount cabinet’s PDU supplies power for the left or the right sides of each
redundant device’s DC power supply. The 9176 Disk Controller, 9170 Disk Array, and
D173 Disk Controller Array have their own power cord. The StorageTek Disk Subsystems
come fully intact, however, if additional storage devices are to be added to the cabinet, you
will need to route power cords and FC cables to the controller tray or drive tray. Refer to
the appropriate rackmount cabinet user’s guide and to the StorageTek 9176 Installation
Guide or D173 User’s Guide for further information.
N
OTE These documents are available online through StorageTek’s Customer
Resource Center (CRC), on StorageTek’s Documents on CD, and comes
on the CD that accompanies the product.
IMPORTANT To ensure redundancy, connect the PDUs in the cabinet to two,
independent power sources. Connect the power cords from each tray to
separate PDUs or PDU grids in the cabinet.
Illustrations are provided in the Installation Guide to facilitate non-StorageTek cabinet
installations. Whenever possible, use the Fibre Channel cable routing shown to ensure that
the StorageTek Object Manager diagnostics identify the hardware components properly.
This will facilitate troubleshooting (properly identifying the faulty component) of your
StorageTek Disk Subsystem, if it becomes necessary.
Component redundancy and path redundancy enable your StorageTek Disk Subsystem to
be available to you 24 hours a day, seven days a week, and 365 days a year (366 days on
leap years). For best results, ensure that your hardware components are monitored through
Object Manager software or similiar storage management application. Also make sure that
your installation has adequate service and cooling clearances, and adheres to all power and
environmental requirements.
StorageTek D173 Disk Subsystem
Empty M03
cabinet used
for the 9176
controller
tray and
drive trays