VERITAS 5250, Руководство по установке оборудования

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The PCMs, located on the left and the right sides of the storage shelf, contain fans.
The I/O module canisters are located in the center of the rear panel, one on top of
the other. Each I/O module contains three mini-SAS HD ports; A, B, and C. The
mini-SAS HD ports connect the I/O modules to the appliance and to other storage
shelves. Note that the port labels are reversed on the bottom canister. Port C is not
used at this time.
The PCMs and the I/O modules include LEDs.
Cables
Two power cables are shipped with each appliance and each storage shelf.
One-meter SAS-3 cables ship with each storage shelf. The one-meter cables are
sufficient when the recommended cabling scheme is followed. Three-meter SAS-3
cables are available separately in case of need.
Use the top down, bottom up method to connect storage shelves to the appliance.
The general scheme follows.
■
The appliance is connected to the first storage shelf with one SAS-3 cable.
■
One cable connects the first storage shelf to the next shelf.
■
Subsequent storage shelves are connected until the last storage shelf is
connected.
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The last storage shelf is connected to the appliance with one cable.
18 Hardware overview
Cables