Adding I/O Resources For Logical Partitions; Switching I/O Processors For Logical Partitions - IBM AS/400e Manual

Adding I/O resources for logical partitions

|
Use this procedure to add new resources or to add resources that you removed from another logical
partition.
When you add an IOP to a partition, the partition state has minimal impact. If the partition is on and the
bus is already shared, the system will add the IOP dynamically in a couple of minutes. If the partition is
not on, the IOP will appear during the next logical partition IPL. If the bus is not shared, the IOP will
appear after the next system initial program load (IPL).
Note: If you are adding new hardware to the system, go to Installing new hardware before proceeding.
You can perform this procedure from system service tools (SST) or dedicated service tools (DST). Follow
these steps to add an I/O resource:
1. Start SST or DST from the primary partition.
2. From SST select option 5 (Work with system partitions); from DST select option 11 (Work with system
partitions) and press Enter.
3. Select option 3 (Work with partition configuration).
4. Use the cursor to select the logical partition to which you want to add the I/O resource.
5. Select option 3 (Add I/O resources). The Add I/O Resources display will appear.
6. Use the cursor to choose the IOP or bus you want to add.
v If this resource is a system bus, you can select option 1 to add it with the status of own dedicated.
No other logical partition will be able to share it.
v If this resource is an IOP, you must use option 1 to add it with the status of own dedicated. A logical
partition cannot share an IOP.
v If this resource is a system bus you can type a 2 to select the bus resource with the status of own
bus shared. This logical partition owns the bus and can share it.
v If the resource is a system bus which is already owned shared by another logical partition, you can
type a 3 to select it with the status of use bus shared. This logical partition does not own the bus,
but can share it with the logical partition that does.
Type a 1, 2, or 3 to select it.
7. Press Enter.
8. The Confirm Add I/O Resources display will appear. Press Enter to confirm your choice.
Once you add an IOP you need to vary on its devices. See the Configuration Tasks You can Perform
chapter of AS/400 Basic System Operation, Administration, and Problem Handling
varying on devices.

Switching I/O processors for logical partitions

Two or more logical partitions can use the same Input/Output Processor (IOP) by switching it from one
logical partition to another. However, the following rules apply:
v The IOP is on a bus that the logical partitions share.
v The IOP does not use disk units with load source data.
v The logical partitions cannot use the IOP at the same time.
v You must remove the IOP from one logical partition.
v You must add the IOP to another logical partition.
Follow these steps to switch an I/O resource:
28
AS/400e: Logical Partitions: Managing
for information on