HP Instant Capacity support for HP IntegritySuperdome 2 with Dynamic Cores – ReleaseNotes

AbstractThis release notes describes known issues and other information specific to HP Instant Capacity support for Superdome 2 withDynamic Cores.

All personnel with system administrator access (that is, with root login privileges on HP-UX systems) to an Instant Capacitysystem should read and understand the contents of this document and the implications of managing an Instant Capacity system.Administrators are expected to have knowledge of HP-UX concepts, commands, and configuration.

HP Part Number: 5900-2062Published: December 2011Edition: 2

© Copyright 2000, 2011 Hewlett-Packard Development Company, L.P

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The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the expresswarranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shallnot be liable for technical or editorial errors or omissions contained herein.

UNIX is a registered trademark of The Open Group.

Contents

1 Instant Capacity support for HP Integrity Superdome 2 with Dynamic Coresrelease notes................................................................................................5

New features in Instant Capacity version 10.04.01 (OS version) and HP Instant CapacityFirmware.................................................................................................................................5HP Instant Capacity product overview..........................................................................................5

iCAP commands..................................................................................................................5TiCAP................................................................................................................................5GiCAP...............................................................................................................................6

Setting up GiCAP environment..........................................................................................6Installing and configuring Instant Capacity Firmware and HP Instant Capacity 10.04.01 (HP-UX OSversion)...................................................................................................................................6

Downloading HP Integrated Firmware Bundle – HP Integrity Superdome 2 Servers........................6Downloading HP Instant Capacity version 10.04.01.................................................................6

Location of Instant Capacity information......................................................................................7HP Instant Capacity version 10.04.01 release notes..................................................................7HP Instant Capacity version 10.x user guide............................................................................7

Known problems.......................................................................................................................7Error generated during partition reboot...................................................................................7Command timeout...............................................................................................................7Expiration time for TiCAP in warning message in syslog is not correct.........................................7Low-level WBEM errors (HP-UX)..............................................................................................7GiCAP Known problems (HP-UX)............................................................................................8

If AGM is unable to get status of SGM it shows that as Active GM.......................................10

2 Support and other resources......................................................................11Information to collect before contacting HP.................................................................................11How to contact HP..................................................................................................................11Registering for software technical support and update service.......................................................11

How to use your software technical support and update service...............................................11Warranty information.........................................................................................................12

HP authorized resellers............................................................................................................12Documentation feedback.........................................................................................................12New and changed information in this edition.............................................................................12Typographic conventions.........................................................................................................12

Contents 3

4

1 Instant Capacity support for HP Integrity Superdome 2with Dynamic Cores release notes

HP Instant Capacity 10.04.01 (OS version) and HP Instant Capacity Firmware bundled with HPIntegrated Firmware bundle for HP Integrity Supedome 2 with Dynamic Cores release includes theupdates to the HP Instant Capacity (iCAP) to support HP Integrity Superdome 2 with DynamicCores.

New features in Instant Capacity version 10.04.01 (OS version) and HPInstant Capacity Firmware

The current HP Instant Capacity release is specifically targeted towards HP Integritynl

Superdome 2. The major enhancements or changes are as follows:• HP Instant Capacity is now installed with HP Integrated Firmware Bundle for HP Integrity

Superdome 2 Servers (Firmware bundle 2.51.102).• Dynamic cores support on HP Integrity Superdome 2.

• Dynamic cores feature enables core migration with HP Instant Capacity and Global WorkloadManager (gWLM).

• Codeword enforcement of iCAP or TiCAP or GiCAP feature support onnl

HP Integrity Superdome 2.• Self enforcement is no longer supported with HP Instant Capacity bundled with HP Integrated

Firmware Bundle 2.51.102.For more information about Instant Capacity Product overview, see Chapter titled Using iCAP onHP Integrity Superdome 2 with Dynamic Cores in the HP Instant Capacity Version 10.x User Guide

HP Instant Capacity product overviewThis section describes the changes in the HP Instant Capacity product on OA Firmware. The basicfeatures of iCAP are not modified by the introduction of iCAP on OA. However, there are somesignificant changes.

iCAP commandsAll the iCAP commands can be executed from both operating system and OA command lineinterface. The only difference is

• While executing icapmodify command from OS, the partition ID parameter must not bementioned, the current partition ID is taken as default ID.

• While executing icapmodify command from OA, the partition ID parameter must bementioned explicitly.

All the commands continue to work from OA command line interface. For more information aboutcommands, see Chapter titled iCAP HP-UX Manpages for HP Integrity Superdome 2 with DynamicCores in the HP Instant Capacity Version 10.x User Guide

TiCAPFor more information about TiCAP, see Chapter titled iCAP HP-UX Manpages for HP IntegritySuperdome 2 with Dynamic Cores in the HP Instant Capacity Version 10.x User Guide

New features in Instant Capacity version 10.04.01 (OS version) and HP Instant Capacity Firmware 5

GiCAP

Setting up GiCAP environmentFor more information, see Chapter titled iCAP HP-UX Manpages for HP Integrity Superdome 2 withDynamic Cores in the HP Instant Capacity Version 10.x User Guide

NOTE:• Group Manager (GM) and OA of the member complexes in GiCAP group should be in the

same network.• Communication occurs only between GM and OA through SSL certificates, and the partition

details are hidden from Group Manager.• Communication occurs through Port 5989, 80, and 443 so these ports must be open on any

firewalls between the GM and OA.• The CIM Server configuration property enableHttpsConnection must be set to a value of “true”

on all GiCAP Group Managers and on all OS instances of all member systems.

Installing and configuring Instant Capacity Firmware and HP InstantCapacity 10.04.01 (HP-UX OS version)

Downloading HP Integrated Firmware Bundle – HP Integrity Superdome 2 ServersThe HP Instant Capacity Firmware is bundled along with Integrated Firmware Bundle – for HPIntegrity Superdome 2 Servers.• Onboard Administrator (OA) Firmware version 2.51.102

For more information on how to download, install, and upgrade Firmware version 2.51.102,see HP Integrity Superdome 2 Server Firmware Bundle product release notes.

• HP-UX 11i v3 1109 (or later) to support the OA firmware on all partitions.The following HP-UX patches must be installed when running on partitions with 2.51.102nPartition firmware:◦ PHKL_42230

◦ PHKL_42314

◦ PHKL_42482For more information on how to update HP-UX, see HP-UX 11i v3 Installation and UpdateGuide, September 2011.

Downloading HP Instant Capacity version 10.04.01• Download HP Instant Capacity software 10.04.01

The HP-UX Instant Capacity 10.04.01 software can be obtained from the HP Software Depotwebsite. The product ID is B9073BA. You can use the product ID or use the search stringInstant Capacity to search the iCAP 10.x software.http://www.hp.com/go/softwaredepot

• Install HP Instant CapactiyRun the following command #/usr/sbin/swinstall -s /<download path>/<iCAPdepot> B9073BA where, <download path> is the location where you have downloadedthe iCAP depot. For more information on Instant Capacity, see HP Instant Capacity Version10.x User Guide

6 Instant Capacity support for HP Integrity Superdome 2 with Dynamic Cores release notes

Location of Instant Capacity information

HP Instant Capacity version 10.04.01 release notesYou can find the HP Instant Capacity Version 10.04.01 Release Notes at the following locations:

• On the Business Support Center (BSC) website:www.hp.com/go/hp-icap-docs

• On the March 2012 HP-UX 11i v3 Instant Information Media (English, Simplified Chinese,and Japanese only)

• On the Instant Capacity 10.04.01 HP-UX software product:/usr/share/doc/icapRelNotes.pdf

HP Instant Capacity version 10.x user guideYou can find the HP Instant Capacity Version 10.x User Guide at the following locations:

• On the BSC website:www.hp.com/go/hp-icap-docsThese are the latest localized versions.

• On the March 2012 HP-UX 11i v3 Instant Information Media (English, Simplified Chinese,and Japanese only)

• On the Instant Capacity 10.x HP-UX software product:/usr/share/doc/icapUserGuide.pdf

NOTE: This is an earlier version and is in English only.

Known problems

Error generated during partition rebootIn HP Integrity Superdome 2 with Dynamic Cores, when partitions are managed with TiCAP turnedON, and if one or more of the partitions goes down, the RTUs associated with the partitions arefreed up by iCAP and are available for use in other partitions. This may lead to errors while bootingthe partitions that are down.This problem can be solved by using TiCAP to boot up the partition.

Command timeoutWhen a command timeout occurs while executing icapmodify -a or -d, thennl

there can be a mismatch between Intended Active and Actual Active values. You must executeicapmodify -s to correct this mismatch.

Expiration time for TiCAP in warning message in syslog is not correctIf the warning period message appears in the syslog, the complex is in warning period. If theexpiration time for TiCAP is not logged correctly in this message, refer to the icapstatus commandoutput for TiCAP expiration time.

Low-level WBEM errors (HP-UX)Occasionally, on a busy system, especially one with many partitions, you may see errors such asthe following:

Location of Instant Capacity information 7

ERROR: The following low-level WBEM error occurred:Empty HTTP response message.

or:

ERROR: The following low-level WBEM error occurred:Locking or unlocking the target failed.

These errors result from contention for system resources from the various partitions in the complex.If you see these messages, retry the Instant Capacity operation.

GiCAP Known problems (HP-UX)

Resolving errors during addition of Standby GMWhile adding Standby GM there is a possibility of certificate exchange failurenl

for the Superdome 2 members. This can be resolved by re-adding the member to the GM.

Handling errors while re-adding GiCAP memberFollow these steps if you get an error while re-adding a member to the GM from both Active GMand standby GM:1. Execute the cimtrust -l command to view the list of certificates available in the GM (AGM

and SGM).2. Look for the certificate which contains the Common Name mentioned in the OA certificate on

the member. You can obtain OA certificate information on the member, by executing ShowOA certificate on the OA CLI.

3. Execute the cimtrust -r i <Issuer> -S <Subject> command to remove the certificate.Issuer and subject information should be taken from cimtrust -l output.

Negative Cores without Usage rights value in icapmanage -s outputIf icapmanage -s reports a negative cores without usage rights value after a seize operation isperformed on one of the members, execute icapmanage -s on the GM again after sometime.

Inconsistent values reported by icapmanage during rapid updatingIf the command icapmanage -s is executed while the group is being rapidly updated (forexample, during gWLM load balancing), the number of loans and borrows assigned to eachmember may not add up in a consistent manner. This is because the status reporting checks witheach member in turn, and if resources are simultaneously being reassigned between group members,the reporting may reflect an intermediate state. If this occurs, reissue the status command when thegroup is in a quiescent state.

Invalid contact address corrupts the GiCAP databaseIf a GiCAP member sets the contact email address value of spaces (using the commandicapmodify -c " "), the GiCAP database gets corrupted. If this happens, the GiCAP groupmust be re-created.

Removing the standby group manager when it has a failureIf the standby Group Manager has a failure and you decide to remove it as a standby (by executingthe command icapmanage -r -S on the active Group Manager), then if the failed systemsubsequently is booted, it still considers that it is a standby Group Manager. This occurs eventhough the rest of the group does not consider it to be a standby Manager. If you want to re-establishit as the standby, run the command icapmanage -a -S on the active Group Manager. However,if you have already established another standby Group Manager (for example), or just want toremove the leftover standby information, you need to stop the cimprovider and remove the GiCAP

8 Instant Capacity support for HP Integrity Superdome 2 with Dynamic Cores release notes

database from the previously failed system. Use commands similar to the following on the systemwhere you want to remove the standby information:icapmanage -s # verify that this is the *obsolete* standby system

cimprovider -d HP_GiCAPProviderModule

rm /etc/opt/iCAP/GiCAP_db

IMPORTANT: Do not run the above sequence of commands on any system that is the activeGroup Manager for the group, as it removes the GiCAP database entirely and leaves the groupmembers in an orphaned state.

icapmanage hangs when specifying illegal standby group managerWhen adding a standby Group Manager using the icapmanage -a -S command, you cannotspecify a system to be a standby for itself. The icapmanage command does detect and displaysan error in the case where you specify a hostname exactly equal to the hostname where you invokethe icapmanage command. However, if you specify an alternate hostname for the OS instancerunning the icapmanage command, the command hangs.

Split GiCAP groupsIf the active Group Manager system is unavailable, an administrator can have a standby GroupManager take control of the group operations at any time using the icapmanage -Q command.While this can be done routinely (for example, to allow shutting down a functioning, active GroupManager for maintenance), normally, this command is executed either when the active GroupManager has failed, or when a network outage prevents it from communicating with the groupmembers. When a standby manager takes control, it attempts to update all members and thecurrent active Group Manager. However, in failure cases, it is possible that the icapmanage -Qcommand is unable to contact the active Group Manager and some members of the groups itmanages. If this happens, the previously active Group Manager may remain active, unaware ofthe change in control. This is referred to as a bifurcated (or split) GiCAP group. For informationon how to repair and manage split groups, see the section titled Group Manager FailoverConsiderations in either the icap(1M) manpage, or the HP Instant Capacity Version 10.x UserGuide available at www.hp.com/go/hp-icap-docs.

icapstatus borrow/loan valuesUnder some circumstances, the borrow and loan values reported by the icapstatus commandfor a member of a GiCAP group do not reflect expected changes in values. This typically happenswhen the usage rights are released by a member system but are not yet assigned or reclaimed byanother member system in the group. The icapmanage -s -v command shows which resourcesare held by the Group Manager. While RTUs count may seem wrong – any actual icapmodifyoperations will result in the RTUs moving to the correct member.

Temporary capacity reporting in a groupTemporary capacity is sometimes held by the Group Manager for quick deployment to individualmembers. This can have unexpected results. For example, the total temporary capacity for a groupreported by the icapmanage -s command may exceed the total obtained by adding the individualtemporary capacity balances reported for the members of the group or temporary capacity mightbe shifted from one member system to another member system, even when an activation requestgets an error. In general, however, temporary capacity for a group is pooled for use by all membersof the group. Therefore, the true balance for the group is always represented by the group totalreported by the icapmanage -s command, and that total is always available to all members ofthe group. Note that in version 8.02 or later, the verbose option (-v) is enhanced to display moreinformation, most notably the TiCAP balance held by the Group Manager.

Known problems 9

Automatic multi-homing not supportedGiCAP does not support automatic multi-homing (multiple NICs and IPs for a host). A member isalways contacted using the hostname (or a list of hostnames) provided when it is added to thegroup. A member always communicates with the Group Manager through its hostname. If theGroup Manager is not reachable through that hostname by a given member, the member is unableto participate in the group.

Considerations when upgrading hardware on a Group ManagerIf you upgrade the hardware on a Group Manager system, you must preserve and restore theUUID and the partition information on the system.

If AGM is unable to get status of SGM it shows that as Active GMIf AGM is unable to collect status of SGM due to any reason (network is not reachable or cimserveris down or cimserver is not responding within the given time), AGM assume that SGM is also anactive GM. And this can be very well a case of split group. Verify if cimserver on SGM is workingfine, and whether it is reachable from AGM, if this problem persists.

10 Instant Capacity support for HP Integrity Superdome 2 with Dynamic Cores release notes

2 Support and other resourcesInformation to collect before contacting HP

Be sure to have the following information available before you contact HP:

• Software product name

• Hardware product model number

• Operating system type and version

• Applicable error message

• Third-party hardware or software

• Technical support registration number (if applicable)

How to contact HPUse the following methods to contact HP technical support:

• See the Contact HP worldwide website:http://www.hp.com/go/assistance

• Use the Contact hp link on the HP Support Center website:http://www.hp.com/go/hpsc

• In the United States, call +1 800 334 5144 to contact HP by telephone. This service is available24 hours a day, 7 days a week. For continuous quality improvement, conversations might berecorded or monitored.

Registering for software technical support and update serviceInsight Management includes one year of 24 x 7 HP Software Technical Support and UpdateService. This service provides access to HP technical resources for assistance in resolving softwareimplementation or operations problems.The service also provides access to software updates and reference manuals in electronic form asthey are made available from HP. Customers who purchase an electronic license are eligible forelectronic updates.With this service, Insight Management customers benefit from expedited problem resolution aswell as proactive notification and delivery of software updates. For more information about thisservice, see the following website:http://www.hp.com/services/insightRegistration for this service takes place following online redemption of the license certificate.

How to use your software technical support and update serviceAs HP releases updates to software, the latest versions of the software and documentation aremade available to you. The Software Updates and Licensing portal gives you access to software,documentation and license updates for products on your HP software support agreement.You can access this portal from the HP Support Center:http://www.hp.com/go/hpscAfter creating your profile and linking your support agreements to your profile, see the SoftwareUpdates and Licensing portal at http://www.hp.com/go/hpsoftwareupdatesupport to obtainsoftware, documentation, and license updates.

Information to collect before contacting HP 11

Warranty informationHP will replace defective delivery media for a period of 90 days from the date of purchase. Thiswarranty applies to all Insight Management products.

HP authorized resellersFor the name of the nearest HP authorized reseller, see the following sources:

• In the United States, see the HP U.S. service locator website:http://www.hp.com/service_locator

• In other locations, see the Contact HP worldwide website:http://www.hp.com/go/assistance

Documentation feedbackHP welcomes your feedback. To make comments and suggestions about product documentation,send a message to:docsfeedback@hp.comInclude the document title and part number in your message. All submissions become the propertyof HP.

New and changed information in this editionThis edition of HP Instant Capcity Version 10.04.01 Release Notes includes major feature in HPInstant Capacity Dynamic Cores support on HP Integrity Superdome 2 and defect fixes in iCAPB.11.31.10.04.01.XX.

Typographic conventionsThis document uses the following typographical conventions:Book title The title of a book. On the web, this can be a hyperlink to the

book itself.Command A command name or command phrase, for example ls -a.Computer output Information displayed by the computer.Ctrl+x or Ctrl-x A key sequence that indicates you must hold down the keyboard

key labeled Ctrl while you press the letter x.ENVIRONMENT VARIABLE The name of an environment variable, for example, PATH.Key The name of a keyboard key. Return and Enter both refer to the

same key.Term A term or phrase that is defined in the body text of the document,

not in a glossary.User input Indicates commands and text that you type exactly as shown.Replaceable The name of a placeholder that you replace with an actual value.[ ] In command syntax statements, these characters enclose optional

content.{ } In command syntax statements, these characters enclose required

content.| The character that separates items in a linear list of choices.... Indicates that the preceding element can be repeated one or more

times.

12 Support and other resources

WARNING An alert that calls attention to important information that, if notunderstood or followed, results in personal injury.

CAUTION An alert that calls attention to important information that, if notunderstood or followed, results in data loss, data corruption, ordamage to hardware or software.

IMPORTANT An alert that calls attention to essential information.NOTE An alert that contains additional or supplementary information.TIP An alert that provides helpful information.

Typographic conventions 13