PRIMECLUSTER Global File Services Configuration and Administration Guide 4.1 (Solaris(TM) 10 Operating System)

11.2.2.2 Examples of creating a representative file system

Examples of creating a typical GFS Shared File System are given below.

Single partition configuration

To create a GFS Shared File System with a single partition, specify the partition configuring the file system. In this case, areas for all types of data (meta-data area, update log area, and file data area) are created in the representative partition.

The following is an example of using mkfs_sfcfs(1M) to create a file system with a single partition.

# mkfs -F sfcfs -o node=mikan,karin /dev/sfdsk/gfs01/rdsk/volume01 <Enter>
   Representative partition (meta-data, log, and data): /dev/sfdsk/gfs01/rdsk/volume01
   Shared hosts    : mikan, karin
   Primary MDS : mikan
   Secondary MDS : karin

[Figure Single partition configuration]

Multiple partitions configuration (Multiple file data partitions configuration)

To specify multiple partitions in the data area, specify a representative partition and file data partitions. In this case, a meta-data area, update log area, and data area are created in the representative partition.

The following is an example of using mkfs_sfcfs(1M) to create a file system with multiple file data partitions.

# mkfs -F sfcfs -o data=/dev/sfdsk/gfs01/dsk/volume02,data=/dev/sfdsk/gfs01/rdsk/volume03,node=mikan,karin /dev/sfdsk/gfs01/rdsk/volume01 <Enter>
   Representative partition (meta-data, log, and data): /dev/sfdsk/gfs01/dsk/volume01
   Data partition:  /dev/sfdsk/gfs01/rdsk/volume02, /dev/sfdsk/gfs01/rdsk/volume03
   Shared hosts:  mikan,karin
   Primary MDS:  mikan
   Secondary MDS:  karin

[Figure Multiple data partitions configurations]

Multiple partitions configuration (Separating the data area)

If multi-partition of the file data area is specified with the "-o dataopt=y" option, representative partitions will not contain the file data area.

The following example shows how to create a file system where the file data area is not included in multiple file data partitions or representative partitions with mkfs_sfcfs(1M).

# mkfs -F sfcfs -o dataopt=y,data=/dev/sfdsk/gfs01/rdsk/volume02,data=/dev/sfdsk/gfs01/rdsk/volume03,node=mikan,karin /dev/sfdsk/gfs01/dsk/volume01 <Enter>
  Representative partition (meta-data and log):  /dev/sfdsk/gfs01/rdsk/volume01
   Data partition:  /dev/sfdsk/gfs01/dsk/volume02, /dev/sfdsk/gfs01/rdsk/volume03
   Shared hosts:  mikan, karin
   Primary MDS:  mikan
   Secondary MDS:  karin

[Figure Separating the data area]