To create a shared file system for MPP instances on Linux

1. From one of the nodes, 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 sdc:

   # vxdg -s init db2db_dg sdc

3. Deport and import the disk group:

   # vxdg deport db2db_dg
   # vxdg -s import db2db_dg

4. Use the vxassist command to create a volume:

   # vxassist -g db2db_dg make db2db_vol 7g

5. Create the file system:

   # mkfs -t vxfs -o largefiles /dev/vx/rdsk/db2db_dg/db2db_vol

6. Create the mount point directory and mount the file system.

   # mkdir /db2_mnt/db2inst1
   # mount -t vxfs -o cluster /dev/vx/dsk/db2db_dg/db2db_vol \
     /db2_mnt/db2inst1