IBM General Parallel File System for AIX: Administration and Programming Reference

mmlsconfig Command

Name

mmlsconfig - Displays the current configuration data for a GPFS nodeset.

Synopsis

mmlsconfig [-C NodesetId]

Description

Use the mmlsconfig command to display the current configuration data for a GPFS nodeset.

Depending upon your configuration, additional information may be displayed for problem determination.

Parameters

-C NodesetId

The identifier of the GPFS nodeset you want to display configuration data for. If this option is not specified or a period (.) is used for the NodesetId , the information is displayed for the nodeset you are running on. To determine the nodeset of the node you are running on, issue the mmlsnode -C . command.

In an SP environment, if this option is not specified and the command is issued from the CWS or from a node not belonging to a nodeset, the command fails.

Options

NONE

Exit status

0

Successful completion.

1

A failure has occurred.

Security

You must have root authority to run the mmlsconfig command.

In an SP environment:

• Verify the authentication method set for SP security services:
  1. If your authentication method is set to compatibility, Kerberos authentication is required. Issue the k4init command.
  2. If your authentication method is set to DCE, dce_login authentication is required.
  3. If your authentication method is set to NONE/std, there must be an entry in the /etc/sysctl.mmcmd.acl file on every node in the nodeset for the root user at every other node in the nodeset.

  For further information, see the latest IBM Parallel System Support Programs for AIX: Administration Guide, IBM Parallel System Support Programs for AIX: Command and Technical Reference, and RS/6000: Planning Volume 2, Control Workstation and Software Environment manuals at www.rs6000.ibm.com/resource/aix_resource/sp_books/pssp. Search for information on sysctl.

• You may issue the mmlsconfig command from any node running GPFS or the CWS when using the -C option.
• If you are executing the mmlsconfig command from the CWS on a multi-partitioned system, the SP_NAME environment variable must be properly set. It is suggested that you use a separate window for each partition and set the environment variable accordingly. For further information, see the IBM Parallel System Support Programs for AIX: Administration Guide and search for understanding system partitioning.

In an HACMP environment:

1. When using rcp and rsh for remote communication, a properly configured /.rhosts file must exist in the root user's home directory on each node in the GPFS cluster. If you have designated the use of a different remote communication program on either the mmcrcluster or the mmchcluster command, you must insure:
   1. Proper authorization is granted to all nodes in the GPFS cluster.
   2. The nodes in the GPFS cluster can communicate without the use of a password.
2. You may issue the mmlsconfig command from any node in the GPFS cluster.

Examples

To display the current configuration data for the GPFS nodeset you are running on, enter:

mmlsconfig -C .

The system displays information similar to:

Configuration data for nodeset set1:  
-----------------------------------  
pagepool 256M                        
dataStructureDump /log/mmfs          
multinode yes                        
autoload yes                          
useSingleNodeQuorum no               
wait4RVSD no                         
comm_protocol TCP                   
clusterType sp                       
group Gpfs.set1                       
recgroup GpfsRec.set1                 
useDiskLease no                      
                                     
File systems in nodeset set1:         
----------------------------         
fs1                         
 

See also

mmchconfig Command

mmcrcluster Command

mmconfig Command

Location

/usr/lpp/mmfs/bin