Powering On An Expansion Unit - IBM Power System POWER7 Series Common Service Procedures

Yes: Move each of the expansion unit's ac power cords one at a time to the alternate ac power
source to prevent the expansion unit from losing ac power. Return to the procedure that sent you
here.

Powering on an expansion unit

You can power on an expansion unit that is either managed by a management console (such as the
Hardware Management Console (HMC) or the IBM Systems Director Management Console (SDMC)) or
not managed by a management console.
Attention:
v Before beginning, read this entire procedure. If there are procedural steps that cannot be performed at
this time, the entire procedure must be delayed until a later time.
v If the server is managed by a management console, the power off and power on functions must be
performed by using the Power On/Off Unit utility on the management console.
To use the Power On/Off Unit utility from the HMC display, complete the following steps:
1. Expand the Systems Management topic.
2. Select Servers.
3. From the Select column, select the server you are working on.
4. In the Tasks area select the following options:
a. Select Serviceability.
b. Select Hardware.
c. Select Power on/off I/O unit.
d. Select Power on.
To use the Power On/Off Unit utility from the SDMC display, complete the following steps:
1. On the Welcome page, under the Resources tab, select the server.
2. Click Actions > Operations > Power On.
Attention:
If the server is not managed by a management console, the power off and power on functions must be
performed by using the Packaging Hardware Resources utility from the IBM i service partition. To use
the Packaging Hardware Resources, go to the system service tools or the dedicated service tools and do
the following when instructed to in the procedure below:
1. Select Start a service tool.
2. Select Hardware service manager.
3. Select Packaging hardware resources.
4. Select Concurrent maintenance.
If the server is not managed by a management console and there is no IBM i service partition, the
enclosure cannot be powered off and on with the server powered on.
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