B.1.1 sfcdf(8) Display the GFS Shared File System use status and configuration information

sfcdf -v [ device ... ]

sfcdf -m device

The sfcdf command displays detailed information about the use status and the configuration of a GFS Shared File System.

A path name of the block special file can be specified for a device to indicate the partition of a file system. When no value is specified for device, information on the mounted file system is displayed.

In GFS Shared File System, a part of an empty area in the data area has been reserved for each AC to allocate the file data on the AC side. This reservation area is treated as occupied. Please note to what is reported as occupied that areas more than the file data which were really assigned.

Moreover, so that the allocation of the file data may give priority and use this reservation area, please necessarily note that the area reported while using it doesn't increase by new writing.

The following information can be displayed for file system use statuses.

For the meta-data area, the following information is displayed:

inodes: Total number of i-nodes
free: Total number of available i-nodes
vdata: Total number of V-data blocks
free: Total number of available V-data blocks
leaf: Total number of leaf for empty extent management
free: Total number of available leaf for empty extent management
Type: META

For the update log area, the following information is displayed:

kbytes: Size of the update log area (kilobyte)
Type: LOG

For the file data area, the following information is displayed:

kbytes: Size of the file data area (kilobyte)
used: Size of the file data area in use (kilobyte)
free: Size of the available file data area in use (kilobyte)
%used: Utilization of the file data area (including the reserved area)
Type: DATA

The following options can be specified:

-v

Outputs if i-nodes, V-data, and file data area are used, how much the extent is empty, and what size the update log area is.

In case of multi-partitions, the configuration will be displayed by partition.

-m: Displays the super block and the partition configuration data on the partition.

The following operands can be specified:

device: Specifies the path to a path name of the block special file on the partition of the GFS Shared File System. When -v option is specified and no value is specified for device, information on the mounted file system is displayed.

Single-partition configuration

# sfcdf -v /dev/sfdsk/gfs01/dsk/volume01 <Enter>
Filesystem:/mnt
                  inodes     free    vdata     free     leaf     free   Type
/dev/sfdsk/gfs01/dsk/volume01
                   45156    45151    15052    15034    22584    22582   META
                  kbytes
/dev/sfdsk/gfs01/dsk/volume01
                    5113                                                 LOG
                  kbytes     used     free    %used

/dev/sfdsk/gfs01/dsk/volume01
                  361240        8   361232        0%                     DATA

Multi-partition configuration

# sfcdf -v /dev/sfdsk/gfs01/dsk/volume01 <Enter>
Filesystem:/mnt
                  inodes     free    vdata     free     leaf     free   Type
/dev/sfdsk/gfs01/dsk/volume01

                   45156    45151    15052    15034    22584    22582   META
                  kbytes
/dev/sfdsk/gfs01/dsk/volume01
                    5113                                                  LOG
                  kbytes     used     free    %used
/dev/sfdsk/gfs01/dsk/volume01
                  361240        8   361232        0%                     DATA
                  kbytes     used     free    %used
/dev/sfdsk/gfs01/dsk/volume02
                   65504        0    65504        0%                     DATA

<FILE>

/etc/mtab

The table of a mounted system file

sfcmkfs(8)

df(1), getmntent(3) and mount(8) in the online manual