Aem3.1.1 Docs Relnotes

IBM Systems

IBM Systems Director Active Energy Manager Release

Notes

Version 3.1.1

��

Note

Before using this information and the product it supports, read the information in “Notices” on

page 21.

© Copyright International Business Machines Corporation 2007, 2008.

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract

with IBM Corp.

Contents

Chapter 1. About this release . . . . . 1

Chapter 2. Documentation . . . . . . . 3

Chapter 3. New in this release . . . . . 5

Chapter 4. Compatibility with IBM

Director . . . . . . . . . . . . . . . 9

Chapter 5. Installation and upgrade

information . . . . . . . . . . . . . 11

Chapter 6. Known problems . . . . . 13

Limitations . . . . . . . . . . . . . . 13

Known problems and workarounds . . . . . . 14

Active Energy Manager not appearing in IBM

Director . . . . . . . . . . . . . . 14

Active Energy Manager properties are not saved

across sessions on Linux . . . . . . . . . 15

Active Energy Manager tasks do not launch . . 15

Error 1603: Error installing Windows Installer

engine . . . . . . . . . . . . . . . 15

Error: Device is not supported by Active Energy

Manager: <system name> . . . . . . . . 16

Exporting data to a network share fails . . . . 16

Full Scale Power exceeded on HS21 and HS41

blade servers when running high performance

computing applications . . . . . . . . . 17

Installation of Active Energy Manager fails on

Windows Server 2003 . . . . . . . . . . 17

License fails on Linux . . . . . . . . . . 17

License information not updating . . . . . . 18

Power capping fails on HS20 server blades . . . 18

SynapSense sensor nodes do not appear in Active

Energy Manager . . . . . . . . . . . . 18

Systems not appearing in Active Energy Manager 19

Notices . . . . . . . . . . . . . . 21

Trademarks . . . . . . . . . . . . . . 22

© Copyright IBM Corp. 2007, 2008 iii

iv IBM Systems Director Active Energy Manager Version 3.1.1 Release Notes

Chapter 1. About this release

Active Energy Manager is part of a larger power-management implementation that

includes hardware and firmware components. Use Active Energy Manager to

manage the power and thermal needs of IBM® servers and BladeCenter® systems.

Active Energy Manager 3.1 is an extension to IBM Director software. A stand-alone

version of Active Energy Manager, which runs on top of Embedded Director, is

also available.

© Copyright IBM Corp. 2007, 2008 1

2 IBM Systems Director Active Energy Manager Version 3.1.1 Release Notes

Chapter 2. Documentation

In addition to these release notes, the complete Active Energy Manager 3.1

documentation can be found in theIBM Systems Software Information Center

(http://publib.boulder.ibm.com/infocenter/eserver/v1r2/topic/aem_310/frb0_main.html).


http://publib.boulder.ibm.com/infocenter/eserver/v1r2/topic/aem_310/frb0_main.html

Chapter 3. New in this release

Active Energy Manager 3.1.1 provides a number of new features and

enhancements since the previous release, version 3.1.

Metering Devices folder

Previously, an Intelligent PDUs (ac) folder, or node, existed in the navigation pane

of the Active Energy Manager console. In version 3.1.1, this folder has been

replaced by a Metering Devices folder. This folder contains both PDU+s and

SynapSense sensor nodes.

Support for SynapSense sensor nodes

Support has been added for SynapSense sensor nodes, which create a wireless

sensor network architecture. These nodes can be placed in proximity to each other

and to a gateway node, which is connected to a computer and collects data from

the wireless sensor nodes at configured intervals. Active Energy Manager monitors

these nodes through the SynapSense SNMP agent, collecting and trending power

and temperature data they report, and SNMP traps they generate. This release only

provides monitoring. It does not support association of other devices with

SynapSense sensors, nor does it allow configuration of SynapSense sensor

networks from within Active Energy Manager.

Exporting data

Current data

The exporting of current data has been enhanced. All tables in view are exported

for all devices, except for BladeCenter chassis. For BladeCenter chassis, the tables

for chassis, power domain and slot are exported.

Trend data

The exporting of chart trend data has been enhanced. All data in the Trend Data

pane of the Active Energy Manager console are exported when the data is

exported as a JPEG file.

Managing collection of trend data

Polling interval

The polling interval for the collection of historical trend data can now be set

globally for all objects, as well as individually for Active Energy Manager objects,

which override the global settings.

Number of days to keep trend data

You can specify the number of days to store trend data on the Server tab of the

Preference window.


Active Energy Manager console refresh rate

You can set the rate, in minutes, at which the Active Energy Manager console is

automatically refreshed.

Event Viewer

You can view Active Energy Manager events in the Active Energy Manager Event

Viewer. The Event Viewer can be used to display SNMP trap events from

Emerson-Liebert SiteScan, PDU+s,, and SynapSense devices.

Support for additional PDU+s

Support has been added for additional intelligent power distribution units (PDU+).

A PDU+ is an electrical device that controls power distribution, provides circuit

protection, and monitors power use of attached devices and temperature of the

surrounding environment. A PDU+ can also enable power and thermal monitoring

for legacy systems that don’t have those capabilities. The supported PDU+s are a

form of power strip into which the hardware in a rack environment can be

plugged.

The following additional PDU+s are supported with the release of Active Energy

Manager 3.1.1:

v IBM Ultra Density Enterprise PDU C19 PDU+ (71762MX)

v IBM Ultra Density Enterprise PDU C19 3 phase 60A PDU+ (71763MU)

Support information for these intelligent PDUs can be found at:

www.ibm.com/systems/support/. Select the Hardware upgrades link.

Additional hardware support

POWER6

v 8203-E4A

v 9407-M15

v 9408-M25

v 8204-E8A

v 9409-E8A

v 9125-F2A-6316 (air-cooled)

v 9125-F2A-7298 (water-cooled)

v 9119-FHA

System z servers

v System z10 EC E12 (2097 E12)





PDU+s

v IBM Ultra Density Enterprise PDU C19 PDU+ (part number: 71762MX | model:

43v5967)

v IBM Ultra Density Enterprise PDU C19 3 phase 60A PDU+ (part number:

71763MU |model: 43v5968)


SynapSense sensor nodes

v SynapSense version 3.0 nodes

Note: Later SynapSense versions may be supported at a future date.

Chapter 3. New in this release 7

Chapter 4. Compatibility with IBM Director

Active Energy Manager is supported for use with IBM Director 5.20.2.

Important: In order for IBM Director extensions such as Active Energy Manager to

function properly, you must have installed IBM Director using the Standard

installation option. Active Energy Manager functions may not appear in the IBM

Director Console if IBM Director was installed using the Express installation of

IBM Director.


Chapter 5. Installation and upgrade information

Before you begin

You can upgrade to the latest version of Active Energy Manager from previous

releases of Active Energy Manager, or from the IBM PowerExecutive, the previous

name of the product.

Important: Attempts to upgrade from versions of PowerExecutive prior to v2.00

will fail. If you want to upgrade from a version of Power Executive older than

version 2.00, first upgrade to PowerExecutive 2.00, then perform another upgrade

to Active Energy Manager 3.1.1. When you upgrade, you have will need to migrate

your existing PowerExecutive database to work with Active Energy Manager 3.1.1.

You may want to make a copy of your existing PowerExecutive database if you

want to go back to that version later.

Upgrading to Active Energy Manager 3.1.1 on systems running Linux®

To upgrade Active Energy Manager on systems that are running Windows, run the

executable file to launch the upgrade.

Upgrading to Active Energy Manager 3.1.1 on systems running Linux

To upgrade Active Energy Manager on systems that are running Linux, run the

rpm command by entering the following command at the command prompt:

rpm -Uv <filename>.rpm

Note: You do not need to uninstall your installed version of Active Energy

Manager or PowerExecutive before you upgrade.


Chapter 6. Known problems

This section contains information about Active Energy Manager 3.1 limitations,

problems and workarounds.

Limitations

Use this topic to learn about known limitations in Active Energy Manager 3.1.1.

v The Min/Max power readings shown in the user interface are representative of

measurements made within the rack-mounted server. Some external AC power

meters may not be able to capture or display the same peaks as are displayed

using the Active Energy Manager power meter due to differences such as the

averaging periods of the Active Energy Manager power meter, the averaging

periods of the external power meter, and the filtering behavior of your power

supply.

v On Windows®, saving exported data to a network share that is not mapped to a

drive letter is not supported. When using the File → Export function, you must

specify a local disk or a network share that is mapped to a drive when saving

the exported data.

v Demand Based Switching does not work on BladeCenter HS20 (machine type

8843).

v Power information on BladeCenter systems is refreshed at a default rate of once

every 10 minutes. Power values for blades in such a system will therefore not be

updated more frequently than every 10 minutes, regardless of the rate at which

Active Energy Manager is set to poll (once a minute, by default).

v The Advanced Management Module (AMM) displays information on allocated

power and the power capping range for an individual blade. The allocated

maximum power, which Active Energy Manager refers to as the nameplate

power of a blade, is not the worst case maximum amount of power that a blade

will utilize but is a typical maximum power across various configurations. This

maximum allocated power is used by the AMM to budget for a given blade a

typical maximum power in order to determine if a given blade will fit within

the domain’s power budget and be allowed to power on. The maximum power

in the power capping range will be different than the allocated maximum power.

v PDU+s should only be added to one IBM Director Server for Active Energy

Manager power monitoring. Adding the same PDU+ to multiple IBM Director

Servers could cause PDU+ min/max power averages to be incorrect.

v Some PDU+ models may have an environmental monitoring probe (EMP)

attached, to measure temperature and humidity external to the PDU+ itself.

Active Energy Manager 3.1.1 does not support monitoring EMPs. Therefore,

temperature shown in Active Energy Manager for a PDU+ device is that of its

internal temperature sensor. You can use the IBM DPI web interface to view the

EMP temperature and humidity if needed. Future versions of Active Energy

Manager may include the ability to monitor EMPs.

v If hot-swappable components are added to or removed from a System x server

while it is powered on, the minimum and maximum cap values displayed by

Active Energy Manager will not be updated until the next reboot. If components

are hot-plugged into a System x server while it is powered on, the server may

consume more power than previously expected, and the server may therefore

not be able to throttle power consumption all the way down to the displayed


minimum cap value. If the currently set cap value is lower than the server can

enforce, the cap value may be exceeded under some circumstances.

v If, from within the Active Energy Manager console, your action causes a dialog

to appear, neither the main Active Energy Manager window nor the IBM

Director Console window will be accessible while that dialog is open. Complete

the action for which the dialog opened, and dismiss the dialog; then the other

windows will again be responsive.

v All Current Data information for SynapSense sensor nodes and sensors is read

from the SynapSense SNMP Agent that is configured in IBM Director, and

displayed in Active Energy Manager. There is no way to set these data, such as

location or description, through Active Energy Manager. To edit these settings,

when possible, you must use the interface that came with your SynapSense

hardware.

v Deleting a System z HMC from the IBM Director Console will remove all the

Active Energy Manager System z servers and their data. If any of the System z

servers are associated with another System z HMC, they will be rediscovered

either upon the next re-start of IBM Director or upon Active Energy Manager’s

next discovery cycle occurs, which occurs once every 25 minutes.

v When monitoring power use of a system through an HMC, the load on the

HMC can determine how quickly Active Energy Manager can poll for power

data. If there is a heavy load on the HMC, such as when multiple IBM Director

Servers are communicating with the HMC, polling in Active Energy Manager

may experience delays. When this happens, you may see the time between polls

of endpoint managed objects appear longer than the polling interval for those

objects, sometimes much longer. If this occurs, check the load on the HMC, and

reduce it if quicker polling is required.

v Currently, when you select any blade server in IBM Director Console, and then

start Active Energy Manager, Active Energy Manager will show the entire

BladeCenter and all that is contained within it. There is no way to display only

specific blades in Active Energy Manager.

Known problems and workarounds

Use this topic to troubleshoot known problems and workarounds for Active

Energy Manager.

Active Energy Manager not appearing in IBM Director

Active Energy Manager will not work on a system that had IBM Director installed

using the Express install option of IBM Director.

Problem

The Active Energy Manager functions may not appear in the IBM Director Console

if IBM Director was installed using the Express installation of IBM Director. Full

operation of Active Energy Manager requires prerequisites that only a custom

installation of IBM Director provides.

Investigation

In order for IBM Director extensions such as Active Energy Manager to function

properly, you must install IBM Director using the Standard installation option.


Active Energy Manager properties are not saved across

sessions on Linux

On Linux, previously defined property settings are not saved across Active Energy

Manager sessions when the user does not have proper authority on the operating

system.

Problem

On Linux, the Active Energy Manager properties are not saved across Active

Energy Manager sessions when the user does not have proper authority on the

operating system. For example, the price/kwh settings in the Watt-Hour Meter

dialog is not saved from one session to the next.

Investigation

To save Active Energy Manager properties across Active Energy Manager sessions,

ensure that the operating system account you use has local root authority.

Alternatively, you can change the permissions on the <director

path>/classes/PowerExecutive/PowerExecConsole.properties file to enable

read/write access.

Active Energy Manager tasks do not launch

Active Energy Manager tasks do not launch from the IBM Director Console.

Problem

Active Energy Manager tasks appear in the IBM Director Console, but they do not

execute when clicked.

Investigation

This can occur when a system has IBM Director Console installed, but does not

have Active Energy Manager console installed. Active Energy Manager console and

IBM Director Console must both be installed in order to be able to complete Active

Energy Manager tasks through IBM Director Console.

Error 1603: Error installing Windows Installer engine

You receive a Windows Installer engine error when attempting to install Active

Energy Manager.

Problem

During the installation of Active Energy Manager, the following message is

displayed:

1603: Error installing Windows Installer engine. A file which needs to be

replaced may be held in use. Close all applications and try again.

Investigation

Click OK and continue the installation. If this does not solve the problem, one or

more of the following fixes may resolve the error:

1. Insufficient disk space

Increase your hard disk space.

Chapter 6. Known problems 15

2. Temp directory is not clean

Clean the Temp directory.

3. A certain file on the machine is locked

Close all applications running in the background. Reboot your computer. Run

the installation again.

4. Use Microsoft’s Windows Installer Cleanup utility to remove traces of previous

installations.

This utility does not remove files installed by the installation, which may need

to be removed manually. For more information, refer to Microsoft’s Knowledge

Base.

Error: Device is not supported by Active Energy Manager:

<system name>

You get an error message about a device not being supported by Active Energy

Manager on a system known to support Active Energy Manager.

Problem

Active Energy Manager displays the following message: The following device is

not supported by Active Energy Manager: <system name> on a system known to

support Active Energy Manager

Investigation

The system may have an advanced management module (Service Processor [SP]),

which has its own Ethernet port, and, therefore, its own IP address. Director will

talk to this SP. But, this SP does not have Active Energy Manager support. Only

the on-board Base Management Controller (BMC) has Active Energy Manager

support. The BMC is on the system board and it shares the Ethernet port with the

system. For Active Energy Manager to display the system, you must configure the

BMC from the F1 BIOS Setup screen.

Exporting data to a network share fails

On Windows, saving exported data to a network share may fail.

Problem

On Windows, saving exported data to a network share may sometimes fail with an

error stating that the file already exists even though it may have been deleted on

the actual share. In addition, Active Energy Manager does not support the saving

of exported data to a Windows network share that is not mapped to a drive letter.

Investigation

v Use a different filename to export data or reboot the machine to clean the

network file cache information.

v Save your exported data to a Windows network share that is mapped to a drive

letter.


Full Scale Power exceeded on HS21 and HS41 blade servers

when running high performance computing applications

The maximum value that the power meter circuit can measure, called Full Scale

Power (FSP), can be exceeded on fully configured HS21 and HS41 blade servers

when running high performance computing applications.

Problem

The HS21 and HS41 blade servers have a known limitation in their power meter

hardware. The maximum value that the power meter circuit can measure, FSP, can

be exceeded on fully configured servers when running high performance

computing applications. Under such operating conditions, the measured power

displayed by the Active Energy Manager console will remain saturated at FSP and

will not reflect the actual power drawn by the blade. Additionally, setting the

power capping limit to a value higher than FSP may lead to a failure in capping

server power, under such operating conditions. The maximum value of the power

capping limit is based on nameplate power of the blade server and is higher than

the FSP.

Investigation

Do not set power capping limit above FSP. The FSP value is 388 W (246 W for

blade hardware Rev 4). Throttling may occur when capping the system at FSP in

this case. If throttling is not desired, do not enable power capping for this

configuration.

Installation of Active Energy Manager fails on Windows Server

2003

The installation of Active Energy Manager on Windows Server 2003 with SP1 and

Windows Server 2003 x64 Edition requires all Windows Installer hotfixes to be

installed.

Problem

The installation of Active Energy Manager on Windows Server 2003 with SP1 and

Windows Server 2003 x64 Edition may fail if all Windows Installer hotfixes are not

installed.

Investigation

To correct this problem, download and install MS KB 898715 to upgrade the

installer to version 3.1 v2. You can then install Active Energy Manager .

License fails on Linux

On Linux systems, the Active Energy Manager license may fail if a compatible

libstdc++ runtime package is not installed.

Problem

The Active Energy Manager licensing on Linux systems fails.

Investigation

Ensure that you have a compatible level of the compat-libstdc++ runtime package.


License information not updating

After installing or uninstalling the Active Energy Manager license, the license

status information is not updated in Active Energy Manager.

Problem

After you install or uninstall the Active Energy Manager license, the license status

will not be updated until you restart IBM Director Server.

Investigation

Restart IBM Director Server and Active Energy Manager, then click Help→About to

view the updated license status information.

Power capping fails on HS20 server blades

On HS20 server blades, a failure in power capping may occur when power

capping value is within 20W of the minimum power capping value.

Problem

On HS20 server blades, there is a known limitation on setting power capping at or

close to minimum power capping value on fully configured servers when running

high performance computing applications. A failure in power capping may occur

when power capping value is within 20W of the minimum power capping value.

Investigation

Do not set power capping limit within 20W of the minimum power capping value

in these configurations.

SynapSense sensor nodes do not appear in Active Energy

Manager

After adding a SynapSense SNMP Agent to IBM Director, the sensor nodes that

report through that agent do not appear in Active Energy Manager, and an event is

logged. The event appears in both the Active Energy Manager event log, and in

the IBM Director event log, and notes that an SNMP general error occurred, and

refers to the SNMP version used.

Problem

Active Energy Manager uses advanced SNMP functions for efficiently gathering

data from SynapSense SNMP agents. These advanced SNMP functions are not

supported in SNMP version 1. Therefore, SynapSense sensor nodes and sensors

cannot be discovered and added to Active Energy Manager if verion 1 of SNMP is

used. Although the advanced functions are available in SNMP version 3, there is a

known issue with IBM Director’s SNMP provider such that some of these functions

may fail when SNMP version 3 is used.

Investigation

If you configured the SynapSense SNMP agent to use SNMP version 1, change its

properties so it uses SNMP version 2. If you need the security that SNMP version 3

provides, you can try specifying that version instead, but it might not work. If it

does not, either try SNMP version 2c, or contact IBM to see if a fix to the IBM


Director SNMP version 3 problem is available.

Systems not appearing in Active Energy Manager

Systems are not being displayed in the Active Energy Manager console on a

system known to support Active Energy Manager.

Problem

Active Energy Manager doesn’t display any systems even though the system that

has Active Energy Manager installed supports Active Energy Manager

Investigation

Active Energy Manager only communicates out of band through the network to

the management processor on the system. Even though you have one Ethernet

cable into the system on the Ethernet 1 port, you will have two IP addresses: one

for the on board BMC and one for the operating system. For Active Energy

Manager to display the system on which it is installed, you must add the BMC

address to IBM Director as a Physical Platform.

If any devices were selected in IBM Director Console when you started Active

Energy Manager, only those systems will appear in Active Energy Manager. If you

want all devices displayed in Active Energy Manager, either select them all, or

de-select them all, in the IBM Director Console, then start Active Energy Manager

again.


Notices

This information was developed for products and services offered in the U.S.A.

IBM may not offer the products, services, or features discussed in this document in

other countries. Consult your local IBM representative for information on the

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IBM may have patents or pending patent applications covering subject matter

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Any performance data contained herein was determined in a controlled

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Trademarks

The following terms are trademarks of

International Business Machines Corporation in

the United States, other countries, or both:

v IBM

v ibm.com®

v AIX®

v AIX 5L™

v BladeCenter

v Electronic Service Agent™

v i5/OS®

v IntelliStation®

v iSeries®

v POWER™

v Redbooks®

v ServeRAID™

v ServerProven®

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v System i™

v System p™

v System z™

v System x™

v TotalStorage®

v xSeries®

v z/VM®


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trademarks of Microsoft Corporation in the

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logos are trademarks or registered trademarks of

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Other company, product, or service names may be

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Notices 23

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IBM Systems Director Active Energy Manager Release Notes

Version 3.1.1

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