IBM Power System POWER7 Series User Manual

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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IBM Power System POWER7 Series Specifications

General

Processor	POWER7
L2 Cache	256 KB per core
L3 Cache	4 MB per core
Memory Type	DDR3
Operating System	AIX, IBM i, Linux
Virtualization	PowerVM
Processor Cores	4, 6, or 8
Form Factor	Rack
Release Date	2010

Summary

Common Service Procedures

Starting and Managing Repairs

Procedures for initiating repair actions, managing serviceable events, and using consoles.

System Power and Console Operations

Instructions for powering systems on/off and configuring primary/alternative consoles.

Diagnostics and Reference Codes

Understanding system reference codes, formats, and searching service action logs.

Service Tools and Management Interfaces

Accessing and utilizing dedicated service tools, hardware manager, and ASMI.

Component Replacement and Verification

Procedures for replacing hardware components and verifying repair success.

System Configuration and Call Closure

Managing configuration, LEDs, and closing service calls after repair.

Safety Notices

General Safety Precautions

DANGER, CAUTION, and Attention notices for safe system operation and handling.

Specific Safety Information

World Trade, German, Laser, and other region-specific safety guidelines.

Notices

Compliance Statements

FCC, IC, EU, VCCI, and other regional compliance and EMI statements.

Terms and Conditions

Legal permissions, warranties, and disclaimers for using IBM publications.