Powering on and off a domain with logical partitions

Only use this procedure when directed by your service representative

When a disk unit IOP fails, the disk units in the IOP could become unusable, or the server could hang. The domain is a group of hardware resources that the system defines as being related.

When you are under the direction of your service representative, perform a power off domain, the server shuts down the failed disk unit IOP. You can replace any failed disk units without restarting the logical partition or entire server.

To power off and power on a domain, you should be working with the remote control panel. Under the directions of your service representative, select function 68 to power off the domain and function 69 to power on the domain.