Silicon Graphics InfiniteStorage 4000 Series, Configuring And Maintaining

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260 Step 3 – Installing the Second Controller
Step 3 –
Installing the
Second
Controller
ATTENTION Possible hardware damage
– To prevent electrostatic discharge
damage to the tray, use proper antistatic protection when handling tray components.
NOTE
For best operation, the new controller must have a part number identical to the
existing controller, or the new controller must be a certified substitute. The part number
is on a label on the controller. To provide full functionality in dual-controller
configurations, make sure that both controllers in the controller tray or the
controller-drive tray have the same memory capacity. Although you can install two
controllers of different memories in a controller tray or a controller-drive tray, the
mismatch disables some functions, such as cache mirroring.
1. Put on antistatic protection.
ATTENTION Possible damage to the controller
– Do not remove the electrostatic
protection until you have finished installing the controller and you have connected the
host cables and the drive tray cables.
2. Unpack the new controller.
ATTENTION Possible damage to the controller
– Bumping the controller against
another surface might damage the data connectors on the rear of the controller. Use
caution when handling the controller.
3. Remove the blank controller canister from the tray by releasing the handle, and
pulling the blank controller canister out of the tray.
4. Slide the new controller canister into the empty slot by pushing the controller
canister until it snaps into place, and locking the handle into the closed position.
Step 4 –
Connecting the
Host Cables The steps in this procedure describe how to attach Fibre Channel host cables. The
steps for connecting other types of host cables are similar, but they do not require the
installation of Small Form-factor Pluggable (SFP) transceivers.
1. If there is a black plastic plug in the host port, remove it.
2. Install an SFP transceiver into the controller by pushing the SFP transceiver into
the host port until it snaps into place.
ATTENTION Possible degraded performance
– To prevent degraded performance,
do not twist, fold, pinch, or step on fiber-optic cables. Do not bend fiber-optic cables
tighter than a 5-cm (2-in.) radius.
3. Plug one end of the fiber-optic cable into the SFP transceiver in the host port.