HP UX Patch Management manual Critical and noncritical warnings

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recommendations. This information helps you to make decisions about the patch, such as whether to install or remove a patch with a warning from the system.

The warning field

You can find patch warning information in the Warning field of a patch's patch details page or patch text file. This field exists only for patches that have a warning. The Warning field is the definitive source of information about a patch warning. The following screen shows part of the Warning field for patch PHKL_30065.

Warning: 04/01/22 - This Critical Warning has been issued by HP.

-PHKL_30065 introduced behavior that can cause a panic on systems configured with greater than 32 GB of device swap.

The behavior will occur only if all the following factors occur:

-The system is configured with more device swap than is

supported by the current value of the swchunk(5) tunable kernel parameter.

-The system has 2 or more swap devices.

-Pages are actually written to the non-primary swap device which exceeds the swchunk(5) supported limit.

.

.

.

The Warning field contains the following information:

The issue date of any warnings (year/month/day format)

Whether the patch warning is critical or noncritical (see “Critical and noncritical warnings” (page 39))

A description of the problem

A suggested course of action for the problem might be provided

A reference to a replacement patch might be provided

See “Finding information for a specific patch” (page 36) for a description of how you can access a patch details page and a patch text file.

Critical and noncritical warnings

Patch warnings are either critical or noncritical. You can find this information in the first line of the Warning field in the patch's patch details page or in the patch text file.

HP considers a patch warning to be critical if the patch causes or exposes a critical problem. Examples of critical patches include the following:

System panic or hang

Process abort, hang, or failure

Data corruption

Severe performance degradation

Application-specific critical issues

HP considers a patch warning to be noncritical if the patch causes or exposes a noncritical problem. Noncritical problems are those other than the ones described previously. Examples of noncritical problems include the following:

Extraneous debug, warning, or error messages

Failure to address all documented issues

Minor regressions in behavior

Patch warnings

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Contents Patch Management User Guide for HP-UX 11.x Systems Revision history Table of Contents What are standard HP-UX patch bundles? Using Dynamic Root Disk for patch management 107 104Patch management strategies HP-UX patches and patch managementWhere to start How to get patchesShould you use standard HP-UX patch bundles? Quick start guide for patching HP-UX systemsOverview Before you beginAcquiring and installing standard HP-UX patch bundles Standard HP-UX patch bundlesAcquiring the bundles As root, run the createdepothp-ux11script Installing the bundlesSwlist Advanced topic using Dynamic Root Disk DRDAcquiring the patches Acquiring and installing individual patchesQuick start guide for patching HP-UX systems Swverify -d \* @ /tmp/somepatchdirectory/depot Installing the patchesAdvanced topic using Dynamic Root Disk DRD HP-UX software structure HP-UX patch overviewPatch-related concepts Patch identificationSoftware depots and patch depots Patch bundlesPatch state Patch statusState Category tagsSwlist -l fileset -a state grep patchid Swlist -l product -a categorytag patchid Which patches are on a system?For example Examples of the swlist command$ swlist -l product *,c=patch $ swlist -l bundle @ somesystem $ swlist -l product *,c=manualdependenciesAncestors and supersession Ancestors$ swlist -l fileset -a ancestor PHSS29183 Supersession Swlist -a appliedpatches filesetname$ swlist -a appliedpatches Xserver.AGRM Showpatches -s Swlist -l patch -x showsupersededpatches=trueSwlist -a patchstate -x showsupersededpatches=true patchid $ swlist -l fileset -a supersedes PHSS28681HP-UX Patch Supersession Chain Patch-related attributesSee Category tags Patch dependencies Types of dependenciesCorequisites and prerequisites Enforced and unenforced manual dependencies Impact of dependencies on acquiring patchesSwlist -vl fileset -a dependencytype fileset Patch rollback and commitment Patch rollbackPatch commitment Advanced topic patch cleanup utility Cleanup -p -c numberHP-UX patch ratings Rating details HP patch rating$ swlist -l product -a categorytag PHSS30011 Critical and noncritical patchesFinding information for a specific patch Patch documentationSubset of fields in patch text file and patch details Swlist -l product -a readme patchid more Obtaining information using the ItrcPatch warnings Advanced topic the readme attributeCritical and noncritical warnings How to handle patch warnings Questions to askAdvanced topic finding patches with warnings Considerations Backup and recoveryPatch management life cycle Patch management overviewPatch management life cycle Patch management overview Restrictive Conservative Innovative Establishing a software change management strategyOperational factor and patch management strategy matrix Recommendations for software change managementPatch management and software depots Consideration of HP patch ratingAcquiring patches for proactive patching Proactive patching strategyAdvanced topic HP-UX Software Assistant Reactive patching strategyAcquiring patches for reactive patching Advanced topic security patching strategyAdvanced topic scanning for security patches Testing the patches to be installedKey features What are standard HP-UX patch bundles?Standard HP-UX patch bundles Standard HP-UX patch bundle use and release dates Obtaining standard HP-UX patch bundlesQuick start guide for patching HP-UX systems Find individual patches Using the IT Resource CenterObtaining an Itrc user account Useful pages on the ItrcAccessing the patch database and finding an individual patch Key featuresClick the add to selected patch list button Using the IT Resource Center Check for patches with dependencies Advanced topic checking for all patch dependenciesUsing the IT Resource Center Click the add to selected patch list button Ask your peers in the forums Standard patch bundlesCustom patch bundles run a patch assessment Support information digestsSearch knowledge base Common software distributor commands for patching Using software depots for patch managementDirectory depots Depot typesTape depots Using depotsViewing depots Choosing depot type and depot locationSwlist -l depot $ swlist -l depot Swlist -l depot @ remotesystem$ swlist -l depot @ swdepot.xyz.com Creating and adding to a directory depot Depot/patches/11.11 Copying patches to depotsRegistering and unregistering directory depots Advanced topic HP-UX Software AssistantCopying products with patch dependencies to depots $ swreg -u -l depot /depot/patches/2003-07periodicdepot Advanced topic access control listsExamples of registering and unregistering depots $ swreg -l depot /depot/patches/2003-07periodicdepotVerifying directory depots Examples of verifying directory depots$ swverify -d \* @ /mydepots/newdirectorydepot $ swverify -d \* @ /mydepots/PHSS30278depot Verification had errorsRemoving software from a directory depot Verification succeededExecution succeeded $ /usr/sbin/cleanup -d /mydepots/patchdepot Advanced topic removing superseded patches from a depot$ swlist -l product -d @ /mydepots/patchdepot $ swreg -u -l depot /mydepots/PHCO27780depot Installing patches from a depotRemoving a directory depot $ swlist -l product @ /mydepots/patchdepotReboots the system when required Analysis succeeded Examples of installing patches from a depotInstalling products with patch dependencies from a depot Custom patch bundlesAnalysis and Execution succeeded Examples of listing patches and bundles Rev Patch descriptionRev Bundle Description $ swlist -d @ /mydepots/temporarydepot Creating a custom bundleAnalysis succeeded Finally, remove the temporary depot For more information Using HP-UX Software Assistant for patch managementUsing Dynamic Root Disk for patch management Drd1m Using the Patch Assessment Tool Patch Assessment ToolBenefits of the Patch Assessment Tool Example of running the Patch Assessment Tool Select upload new system information Support and other resources Contacting HPRelated information Typographic conventions HP websitesNon-HP websites Times Patch usage models Components in test Image Then production Patch usage model 1 hardware/application software changeDRD Begi n Product needs to be certified on HP-UX 11i v2/v3 Patch usage model 3 operating environment cold install Patch usage model 3 operating environment cold install Patch usage model 4 operating environment update Patch usage model 4 operating environment update Create clone Patch usage model 5 proactive patchPassed? System Patch usage model 6 reactive patchAncestor GlossaryIPD SWA Index Index See also HWE Index