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OUTAGE PREVENTION NOTIFICATIONThis notice describes conditions that may result in an application outage and actions you can take to prevent the outage. Study this information carefully to evaluate how much risk, if any, this behavior could present in your environment. Consider taking the preventive action described.Description:Using the Standard Security SPR T6533L01^AEG or T6533L02 with any of the following Expand SPRs may lead to a hang. An application, or any command from the local system attempting to access the file on the remote system, may hang. The hang is likely to occur when the remote $SYSTEM disk is excessively busy, and the I/Os on the $SYSTEM disk on the remote node are getting delayed.T9057L02^AHWT9057L02^AHZT9057L02^AIDT9057L02^AIELikelihood:LikelyPlease note that you must apply both Expand and Standard Security SPRs mentioned in the Fix Section below to address this issue. Failure to install Expand SPR will result in %47721 CPU halt and may lead to a system outage.
Affected version(s):Standard SecurityT6533L01^AEGT6533L02EXPANDT9057L02^AHWT9057L02^AHZT9057L02^AIDT9057L02^AIERelease Version Updates (RVUs) containing the defective versions:L24.08 - L25.09Additional RVUs potentially affected because one or more of the SPRs listed above is usable with them:L21.06 - L23.08
PREVENTIVE ACTION:Workaround:The following command can be executed to recover from the hang:SCF ABORT/START PATH from either system will clear the problem.Fix:Install the appropriate SPRs for both Standard Security Product (T6533) and Expand (T9057) as shown below, based on your release version.For L23.08 - L25.02T6533L01^AEHT9057L02^AIFFor L25.09 OnwardsT6533L02^AEIT9057L02^AIFRVUs containing final fix:Next L-Series RVUInstallation impact:SYSGEN and system load required.You can check with the GNSC for applicability of the above SPR(s) to RVURs released since publication of this OPN.Please refer to the appropriate softdoc(s) for detailed SPR information, including installation instructions, superseded SPRs, and requisite SPR lists.Note: In some cases, requisite SPRs might have greater installation impact than the SPR(s) described in this OPN.
Operating Systems Affected:NonStop OS L21.06, NonStop OS L21.11, NonStop OS L22.09, NonStop OS L23.08, NonStop OS L24.08, NonStop OS L25.02, Nonstop OS L25.09
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