Creating the shared file systems for MPP instances for DB2

Last published : Jun 11, 2026
Install the Storage Foundation Cluster File System software. To create a shared file system for MPP instances, create a shared disk group on the physically shared disk. You then create a volume of sufficient size within the disk group.
To create a shared file system for MPP instances on AIX
  1. From a node, create the disk group. List the disks using the vxdisk list command.
  2. Create a shared disk group. In this case, the group consists of one disk. In this example the disk is hdisk5:
    \# vxdg -s init db2db_dg hdisk5
    1. Deport and import the disk group:
    \# vxdg deport db2db_dg
    \# vxdg -s import db2db_dg
  3. Use the vxassist command to create a 7-GB volume:
    \# vxassist -g db2db_dg make db2db_vol 7g
    1. Create the file system:
    \# mkfs -V vxfs -o largefiles /dev/vx/rdsk/db2db_dg/db2db_vol
  4. Create the mount point directory and mount the file system.
\# mkdir /db2_mnt/db2inst1
\# mount -V vxfs -o cluster /dev/vx/dsk/db2db_dg/db2db_vol \
  /db2_mnt/db2inst1