GPFS useful command

# ./mmlsconfig
Configuration data for cluster xxxxxx:
----------------------------------------------------------
clusterName xxxxxx
clusterId 14987384132872343235
autoload no
dmapiFileHandleSize 32
minReleaseLevel 4.2.0.0
ccrEnabled yes
cipherList AUTHONLY
pagepool 2048M
adminMode central

File systems in cluster xxx.ibm.com:
---------------------------------------------------
/dev/xxxxx
/dev/xxxxx
/dev/xxxxx
/dev/xxxxx
/dev/xxxxx


Check each GPFS filesystem's attributions

# ./mmlsfs all

File system attributes for /dev/xxxxxx:
=========================================
flag                value                    description
------------------- ------------------------ -----------------------------------
 -f                 8192                     Minimum fragment size in bytes
 -i                 4096                     Inode size in bytes
 -I                 16384                    Indirect block size in bytes
 -m                 1                        Default number of metadata replicas
 -M                 2                        Maximum number of metadata replicas
 -r                 1                        Default number of data replicas
 -R                 2                        Maximum number of data replicas
 -j                 cluster                  Block allocation type
 -D                 nfs4                     File locking semantics in effect
 -k                 all                      ACL semantics in effect
 -n                 32                       Estimated number of nodes that will mount file system
 -B                 262144                   Block size
 -Q                 none                     Quotas accounting enabled
                    none                     Quotas enforced
                    none                     Default quotas enabled
 --perfileset-quota no                       Per-fileset quota enforcement
 --filesetdf        no                       Fileset df enabled?
 -V                 15.01 (4.2.0.0)          File system version
 --create-time      Fri Nov 18 14:50:22 2016 File system creation time
 -z                 no                       Is DMAPI enabled?
 -L                 4194304                  Logfile size
 -E                 yes                      Exact mtime mount option
 -S                 no                       Suppress atime mount option
 -K                 whenpossible             Strict replica allocation option
 --fastea           yes                      Fast external attributes enabled?
 --encryption       no                       Encryption enabled?
 --inode-limit      30000000                 Maximum number of inodes
 --log-replicas     0                        Number of log replicas
 --is4KAligned      yes                      is4KAligned?
 --rapid-repair     yes                      rapidRepair enabled?
 --write-cache-threshold 0                   HAWC Threshold (max 65536)
 -P                 system                   Disk storage pools in file system
 -d                 mynsd1;mynsd6;mynsd7     Disks in file system
 -A                 yes                      Automatic mount option
 -o                 none                     Additional mount options
 -T                 /ftm1data                Default mount point
 --mount-priority   0                        Mount priority