GPFS Upgrade

GPFS Startup/Stop
- mmstartup -a
- mmumount all -a
- mmshutdown -a
- tail -f /var/mmfs/gen/mmfslog
- mmgetstate -aL

Release Level Update
- mmlsconfig #check
- lslpp -h gpfs.base        
- mmchconfig release=LATEST #execute

License Update
- mmlslicense -L
- mmchlicense server -N server_name ; then "yes"

# GPFS Config 변경 (worker1Thread)
- mmlsconfig worker1threads- mmfsadm saferdump mb | grep -i worker1
- mmchconfig worker1Threads=300 -I

# CRS Start (DB#01,02)
- crsctl start crs
- crsstat              #check
- ps -ef | grep d.bin  #check

# GPFS Config Change (Autoload = no)
- mmchconfig autoload=no
- mmlsconfig | grep -i autoload #check

mmchconfig datastructureDump=yes
mmchconfig datastructureDump=/var/adm/mmfs

GPFS Recommended Values.

mmchconfig worker1Threads=400

mmchconfig prefetchThreads=100

mmchconfig maxFilesToCache=8000

mmchconfig maxStatCache=30000

mmchconfig maxBufferDescs=60000

 

mmchconfig scatterBuffers=no

mmchconfig stealRecurseCount=1

mmchconfig stealAggressiveThreshold=15