The GFS Shared File System can increase the size of an existing file system without saving or restoring data.
Use the sfcadd(8) command to enlarge the file system. To expand the file system by adding file data partitions, be sure that the file system is being unmounted.
See
For the execution procedure using Operation Management View, see "10.1.3 Change (partition addition)." For the execution procedure using line commands, see "11.4 Change (partition addition)."
Note
If you schedule an expansion of the file system, specify the expanding maximum file data area size (-o maxdsz=n) argument of sfcmkfs(8) when creating the file system. If the maximum data area size of the file system is not specified during file system creation, the resource that is able to manage the file data area's total size of all specified partition is automatically reserved. So, when the file system is expanded, managed resources might be insufficient. If the free file data area is not fragmented, the resources will not be insufficient. If there are too many fragments in the file, part of free area may not be used.
Information
If managed resources are insufficient, the following message will be output to the console:
NOTICE: sfcfs_mds:3004: fsid: too much fragment (extent)
See
For corrective action of the above message, see "A.2.13 Information messages (MDS (sfcfsmg daemon))."
