This section is taken from IBM GPFS Tuning Parameters
Option 1: To view GPFS Configuration Parameters
# mmlsconfig
Configuration data for cluster nsd-nas: ---------------------------------------- myNodeConfigNumber 1 clusterName nsd1-nas clusterId 111111111111 autoload yes minReleaseLevel 3.4.0.7 dmapiFileHandleSize 32 maxMBpS 2000 maxblocksize 4m pagepool 1000m adminMode allToAll File systems in cluster nsd1-nas: --------------------------------- /dev/gpfs1
Option 2: Detailed Dump of configuration
# mmfsadm dump config
afmAsyncDelay 15 afmAtimeXattr 0 afmDirLookupRefreshInterval 60 afmDirOpenRefreshInterval 60 afmDisconnectTimeout 60 afmExpirationTimeout disable afmFileLookupRefreshInterval 30 afmFileOpenRefreshInterval 30 afmLastPSnapId 0 afmMode 1 afmNumReadGWs 0 afmNumReadThreads 1 afmParallelReadChunkSize 134217728 afmParallelReadThreshold disable afmReadBufferSize 33554432 afmReadPrefetchThreshold 2 ..... .....
Option 3: Change Configuration Parameters
# mmchconfig pagepool=256M
Use -i to make the change permanent and affect the running GPFS daemon immediately.
Use -I to affect the GPFS daemon only (reverts to saved settings on restart)
Parameters
(For more information, see GPFS Tuning Parameters)
leaseRecoveryWait
logfile size
GPFSCmdPortRange
maxBufferDescs
maxFilesToCache
maxMBpS
maxMissedPingTimeout
maxReceiverThreads
maxStatCache
minMissedPingTimeout
nfsPrefetchStrategy
nsdMaxWorkerThreads
numaMemoryInterleave
pagepool
opensslLibName
prefetchPct
prefetchThreads
readReplicaPolicy
seqDiscardThreshold
sharedMemLimit
socketMaxListenConnections
socketRcvBufferSize
socketSndBufferSize
verbsLibName
verbsrdmasperconnection
verbsrdmaspernode
worker1Threads
worker3Threads
writebehindThreshold