1. Power off the expansion tower. See “Expansion Tower and SPCN Controlled
Expansion Unit Power Procedure” on page 926.
2. Remove the AC power cord on the frame you are working on.
3. See the instructions below for the model of system or tower that you are
working on:
4. Remove the right side cover, see “FC 5075 – Covers”.
5. Remove and label any cables connected to the card.
6. Turn the latches securing the card.
7. Gently pull the card off the system backplane.
Note: If you have exchanged a 2766 Fibre Channel IOA, the IBM 2105 disk unit
subsystem must be updated to use the World-Wide Port-Name of the
new 2766 IOA. This name can be found in the Port worldwide name
field on the iSeries 400 by displaying detail on the 2766 IOA Logical
Hardware Resource information in Hardware Service Manager in
SST/DST. The 16-digit World-Wide Port-Name can also be determined
by including the digits ″1000″ to the beginning of the 12-digit IEEE
Address found on the tailstock label of the Fibre Channel IOA. Use the
ESS Web Interface User’s Guide (SC26–7346) to update the World-Wide
Port-Name in the host configuration on the IBM 2105 ESS. The ESS Web
Interface User’s Guide can also be found at the following URL:
http://www.storage.ibm.com/hardsoft/products/ess/refinfo
This ends the procedure.
FC 5075 – Covers
To remove the front cover, pull the top of the cover away from the frame.
To remove the right side cover, unscrew the two thumbscrews at the rear of the
tower and slide the cover to the rear of the tower.
To remove the rear cover, lift the cover to detach.
This ends the procedure.
FC 5075 – Device Board – DB1
1. Power off the expansion unit. See “Powering On and Powering Off the System
and Logical Partitions” on page 922.
2. Unplug the power cord from the back of the expansion unit.
3. Remove the front and right side covers, see “FC 5075 – Covers”.
4. Remove the EMC shield in front of the disk units by pulling out on the side
two latches.
5. Remove the disk units from the disk unit cage. label the position of each disk
unit.
6. Remove the screws holding the disk unit cage to the frame. The screws are
located on the front and inside rear of the disk unit cage.
7. Unplug and remove the cables plugged into the back of the device board.
8. Pull the disk unit cage out of the frame.
9. Remove the device board from the back of the disk unit cage.
10. Install the device board by reversing the removal procedure.
Remove and Replace Procedures
Chapter 4. Removal and Installation Procedures 641
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