Bull Escala Power7 Series, Manual, Page: 25 / 148

17. Verify the new configuration. For details, see Verifying that the new configuration is functioning
(http://publib.boulder.ibm.com/infocenter/systems/scope/hw/topic/p7ham/verify.htm).
18.
If the system has logical partitions, you can now assign I/O slots in the expansion units that were
added to logical partitions.
You have completed the addition of your expansion unit.
Connecting expansion units with 12X cables
These instructions explain how to connect expansion units to a system unit with 12X cables in either a
new or existing loop.
About this task
Tip:
If multiple expansion units are to be added with the system power on, work with one 12X loop at a
time. For example, if the plan is to add three expansion units to loop X and two to loop Y, follow the
complete procedure to simultaneously add the three units to loop X. When the first procedure has been
completed, then follow the procedure to simultaneously add the two units to loop Y. It is not necessary to
complete the procedure for each expansion unit separately.
After reviewing “Examples: 12X connections” on page 16, select one of the following options:
v If you are creating a new 12X loop with the expansion units you are adding, see “Adding expansion
units to a new 12X loop.”
v
If you are adding expansion units to an existing 12X loop, see “Adding expansion units to an existing
12X loop” on page 14.
Adding expansion units to a new 12X loop
Use this procedure when adding new expansion units creates a new 12X loop, as opposed to being added
to an existing 12X loop.
Before you begin
Unused 12X connectors might be covered with metal clips. Remove the clips before you install the 12X
cables.
About this task
Complete the following steps to add the expansion units to the 12X configuration:
Procedure
1.
On the system unit where you are connecting new expansion units, identify connectors 0 and 1 of the
12X connector pair.
2. Find the 12X cables that were included with the expansion units.
3. Connect a 12X cable to connector 0 on one of the expansion units to be added.
4. Connect another 12X cable to connector 1 on the expansion unit added in step 3.
5. If there is another expansion unit to add, do the following:
a. Choose the cable that you just connected to connector 1 on the expansion unit that you just added.
Connect the other end of this cable to connector 0 on the next expansion unit to be added.
b. Connect another cable to connector 1 on the expansion unit added in step 5a.
6.
Repeat step 5 for each additional expansion unit.
7. Connect the other end of the cable from connector 0 on the first expansion unit added to connector 0
on your system unit.
8. Connect the other end of the cable from connector 1 on the last expansion unit added to connector 1
on your system unit.
I/O expansion units
13