Tuning parameters change history

Parameter1 Added Updated2 Obsoleted3
adminMode      
afmAsyncDelay   4.1  
afmAsyncOpWaitTimeout 5.0.0 5.0.1  
afmDirLookupRefreshInterval      
afmDirOpenRefreshInterval      
afmDisconnectTimeout      
afmEnableNFSSec 5.0.1    
afmExpirationTimeout      
afmFastCreate 5.0.5    
Start of changeafmFastLookupEnd of change Start of change5.2.0End of change Start of change End of change Start of change End of change
afmFileLookupRefreshInterval      
afmFileOpenRefreshInterval      
afmGateway 5.0.2    
afmHardMemThreshold 4.2    
afmHashVersion 4.1 5.0.0, 5.0.2, 5.0.5  
Start of changeafmLookupMapSizeEnd of change Start of change5.2.0End of change Start of change End of change Start of change End of change
afmMaxParallelRecoveries 5.0.0    
afmNFSVersion 5.1.2    
afmSyncNFSV4ACL 5.1.2    
afmNumReadThreads 4.1 4.1.0.4  
afmNumWriteThreads 4.1.0.4    
afmObjectFastReaddir 5.1.2.1    
Start of changeafmObjMUCheckFNameEnd of change Start of change5.2.0End of change Start of change End of change Start of change End of change
afmParallelMounts 5.0.4    
afmParallelReadChunkSize 4.1    
afmParallelReadThreshold 4.1    
afmParallelWriteChunkSize 4.1    
afmParallelWriteThreshold 4.1    
afmReadDirOnce 5.0.5    
afmReadSparseThreshold      
afmRefreshAsync 5.0.3    
afmRefreshOnce 5.0.5    
afmResyncVer2 5.1.2    
afmRevalOpWaitTimeout 5.0.0    
afmRPO 5.0.0    
afmSecondaryRW 4.2    
afmShowHomeSnapshot      
afmSyncOpWaitTimeout 5.0.0    
atimeDeferredSeconds      
autoload   4.1  
automountDir   4.1  
backgroundSpaceReclaimThreshold 5.1.0    
cesSharedRoot 4.1.1 4.2.1  
cifsBypassTraversalChecking 4.2.1    
cipherList   4.1.0.4  
cnfsGrace 4.1    
cnfsMountdPort      
cnfsNFSDprocs      
cnfsReboot 4.1    
cnfsSharedRoot   4.1  
cnfsVersions 4.1    
cnfsVIP     4.0.1.4
commandAudit 4.2.1    
dataDiskCacheProtectionMethod   4.2.1  
dataDiskWaitTimeForRecovery      
dataStructureDump   4.2.1  
deadlockBreakupDelay 4.1    
deadlockDataCollectionDailyLimit 4.1 4.2, 4.2.1, 4.2.3  
deadlockDataCollectionMinInterval 4.1.1 4.2, 4.2.1  
deadlockDetectionThreshold 4.1 4.2, 4.2.1  
deadlockDetectionThresholdForShortWaiters 4.1.1    
deadlockDetectionThresholdIfOverloaded 4.1.1 4.2 4.2.1
deadlockOverloadThreshold 4.1.1 4.2, 4.2.1  
debugDataControl 4.2.1 4.2.3  
defaultHelperNodes   4.1.0.4, 5.0.1  
defaultMountDir      
disableInodeUpdateOnFdatasync      
dmapiDataEventRetry      
dmapiEventTimeout   4.2.3  
dmapiMountEvent      
dmapiMountTimeout      
dmapiSessionFailureTimeout      
enableIPv6 4.2.0 5.1.0  
enforceFilesetQuotaOnRoot      
expelDataCollectionDailyLimit 4.1.1    
expelDataCollectionMinInterval 4.1.1    
failureDetectionTime      
fastestPolicyCmpThreshold 4.1.1 4.2.1  
fastestPolicyMaxValidPeriod 4.1.1    
fastestPolicyMinDiffPercent 4.1.1    
fastestPolicyNumReadSamples 4.1.1    
fileHeatLossPercent   5.0.4  
fileHeatPeriodMinutes   5.0.4  
FIPS1402mode 4.1 4.1.0.4  
frequentLeaveCountThreshold 5.0.1    
frequentLeaveTimespanMinutes 5.0.1    
ignorePrefetchLUNCount 4.2.1 4.2.3Start of change, 5.2.0End of change  
logRecoveryThreadsPerLog 5.1.0    
logOpenParallelism 5.1.0    
logRecoveryParallelism 5.1.0    
lrocData 4.1    
lrocDataMaxFileSize 4.1    
lrocDataStubFileSize 4.1    
lrocDirectories 4.1    
lrocEnableStoringClearText 5.0.0    
lrocInodes 4.1    
maxActiveIallocSegs 5.0.2    
maxblocksize   4.1.0.4, 5.0.0  
maxBufferDescs 4.2.1    
maxDownDisksForRecovery 4.1.1    
maxFailedNodesForRecovery 4.1.1    
maxFcntlRangesPerFile      
maxFilesToCache      
maxMBpS      
maxMissedPingTimeout 4.2.1    
maxStatCache   4.1.1, 4.2.3, 5.0.2  
maxTcpConnsPerNodeConn 5.1.1    
metadataDiskWaitTimeForRecovery   4.1.0.4  
minDiskWaitTimeForRecovery 4.1.1    
minMissedPingTimeout 4.2.1    
mmapRangeLock      
mmfsLogTimeStampISO8601 4.2.2    
nfsPrefetchStrategy 4.2.1    
nistCompliance 4.1    
noSpaceEventInterval      
nsdBufSpace      
nsdCksumTraditional 5.0.1    
nsdDumpBuffersOnCksumError 5.0.1    
nsdInlineWriteMax 4.2.1    
nsdMaxWorkerThreads 4.2.1    
nsdMinWorkerThreads 4.2.1    
nsdMultiQueue 4.2.1    
nsdRAIDTracks      
nsdRAIDBufferPoolSizePct      
nsdServerWaitTimeForMount      
nsdServerWaitTimeWindowOnMount      
numaMemoryInterleave 4.1.0.4 Start of change5.2.0End of change  
pagepool   4.2Start of change, 5.2.0End of change  
pagepoolMaxPhysMemPct      
panicOnIOHang 5.0.2    
pitWorkerThreadsPerNode 4.1.1    
prefetchPct 4.2.1    
Start of changeprefetchPartitionsEnd of change Start of change5.2.0End of change Start of change End of change Start of change End of change
prefetchThreads   4.1.0.4  
profile 4.1.1    
readReplicaPolicy 4.1.1 4.2.1  
release=LATEST   4.2.1  
restripeOnDiskFailure   4.2.1  
rpcPerfNumberDayIntervals 4.1    
rpcPerfNumberHourIntervals 4.1    
rpcPerfNumberMinuteIntervals 4.1    
rpcPerfNumberSecondIntervals 4.1    
rpcPerfRawExecBufferSize 4.1, 5.0.0    
rpcPerfRawStatBufferSize 4.1    
seqDiscardThreshold 4.2.1    
sharedTmpDir 5.0.1    
sidAutoMapRangeLength      
sidAutoMapRange      
subnets      
sudoUser 5.0.0    
syncBuffsPerIteration 4.2.1    
syncSambaMetadataOps 4.2.1    
systemLogLevel 4.1    
tiebreakerDisks   4.1, 4.2.3  
tscCmdPortRange 5.0.0    
uidDomain      
unmountOnDiskFail   4.2  
verbsGPUDirectStorage 5.1.2    
verbsNumaAffinity 5.1.2    
usePersistentReserve      
verbsPorts   4.2.2, 5.0.0  
verbsHungRdmaTimeout 5.1.0    
verbsRdma      
verbsRdmaCm      
verbsRdmaPkey 4.2.3    
verbsRdmaRoCEToS 4.1.0.4    
verbsRdmaSend      
verbsRdmasPerConnection   4.2, 4.2.1 5.0.0
verbsRdmasPerNode   4.2.1 5.0.0
verbsRecvBufferCount 5.0.0    
verbsRecvBufferSize 5.0.0    
verbsSendBufferMemoryMB     5.0.0
workerThreads 4.2 4.2.2Start of change, 5.2.0End of change  
worker1Threads   4.2Start of change, 5.2.0End of change  
writebehindThreshold 4.2.1    

1 For more information, see Changing the GPFS cluster configuration data.

2 For more information about the updated parameters, see the mmchconfig command.

3 Parameter is not valid starting from the given release.