IBM System Storage DS3300, Installation, User'S, And Maintenance Manual

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duplex mode, the subsystem reports an
alternate controller missing
error
message. If the error message is not reported, reinstall the new dual-controller
NVSRAM on controller A and repeat steps 4 on page 64 through 5 on page
64.
6. Unpack the new controller. Save all packing materials in case you have to
return a controller.
7. Remove the controller filler panel from the controller B bay:
a. On the left side of the filler panel, press the orange release tab to the right
just enough to release the handle; then, rotate the handle upward.
b. Slowly pull the handle away from the chassis to remove the filler panel
from the bay, as shown in Figure 36.
c. Place the filler panel in a safe place for future use.
8. Install the new controller.
Note: The following illustration shows installing controller A. Be sure to install
the new controller in the rightmost bay, as controller B.
a. Slide the controller into the empty controller bay in the storage subsystem.
Make sure that the handle is pulled straight out as you slide the controller
into the bay.
b. Make sure that the guide pins on the side of the controller fit into the
notches on the DS3300 chassis. See Figure 36.
c. After the guide pins fit into the notches and the controller fits snugly into
the bay, push the handle downward to fully latch it into place.
9. Wait up to 5 minutes for the DS3000 Storage Manager software to recognize
the new controller.
10. Connect the host interface cables to the controller. See “Working with SAS
cables” on page 24.
11. Make sure that all storage expansion unit connections with each other have
been completed (see the dual-controller topologies in “DS3300 storage
subsystem drive cabling topologies” on page 27); then, connect the SAS drive
expansion cable from the right ESM in the last storage expansion unit in the
chain to the drive expansion port on controller B of the DS3300.
12. Wait up to 5 to 10 minutes for the DS3000 Storage Manager software to report
the drives and the redundant drive path.
Handle Guide pin Notch
Figure 36. Installing a controller
Chapter 5. Replacing components
65