GPFS - general commands

Roger L. Beck -

GPFS cluster (now known as Spectra Scale File System) general commands:

 

Terminology

mm                  
 Multi Media
NSD                
 Network Shared Disk
lpp
licensed program package
mmfsd (1191 is default port)  
 GPFS daemon (Daemon will do I/O and buffer management)

Location of files:

/var/adm/ras/mmfs.log.latest      
 gpfs log file
/usr/lpp/mmfs/bin            
 GPFS command location
/var/mmfs/gen/mmsdrfs              
 Configuration file

Commands:

mmlscluster                
 to list the cluster
mmgetstate -aLs        
 to view the status of the GPFS cluster
mmlsconfig                
 Basic configuration information of the GPFS including no.of  File  systems
lsof -i :1191 -P
 To check the daemon port listen state.
mmlsmgr  -c              
 to view the GPFS manager
mmlsnfd -f -m                  
 To check the 
mmlsfs all      
 To check all GPFS file systems (lower alphabets are current values)
mmdf              
 To check the gpfs file system size
mmdsh                                    
 To configure trust relation between cluster nodes
mmlsnsd                                  
 To  List NSD disks
mmlsdisk -d                
 To view the disk information
mmaddnode                            
 to add client node
mmchnode                              
 To change client node name
mmcrcluster                          
 To create gpfs cluster 
/usr/lpp/mmfs/samples          
 location of same files created by installing base filesets
mmlslicense                            
 To view the GPFS license
mmlsmgr                                
 To check the cluster Manager and File Manager
mmfsadm dump version        
 Shows the Version and no.of days cluster is up.
mmshutdown -a                      
 Shutdown the GPFS cluster in all nodes.
mmstartup -a                          
 Starts the cluster in all nodes.
mmfsadm  dump config        
 GPFS attributes information
mmchcluster                          
 To change the cluster
mmlsnsd                                  
 will show NSD disks
mmlsnsd -M                            
 Show the detailed NSD disks
mmdf                            
 Show GPFS file system details
mmlsdisk  
 Will shows the disks for that file system

 

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