PRIMECLUSTER Global File Services Configuration and Administration Guide 4.1 (Linux)

9.5.2.1 Enabling MDS placement on all nodes

• Check the current file system configuration. Two nodes (mikan and karin) are currently in the MDS placement range.

# sfcinfo -n /dev/sfdsk/gfs/dsk/volume1
/dev/sfdsk/gfs/dsk/volume1:
FSID  hostID    status  hostname
   1  80000000  STOP    mikan
   1  80000001  STOP    karin
   1  80000002  STOP    mango
   1  80000003  STOP    ringo
# sfcinfo -c /dev/sfdsk/gfs/dsk/volume1
/dev/sfdsk/gfs/dsk/volume1:
node=mikan,karin

• Change the MDS placement range to all shared hosts.

# sfcadm -c all /dev/sfdsk/gfs/dsk/volume1

• Confirm that the MDS placement range has been changed. "all" is now displayed to confirm that the MDS placement range includes all nodes.

# sfcinfo -c /dev/sfdsk/gfs/dsk/volume1
/dev/sfdsk/gfs/dsk/volume1:
node=mikan,karin,mango,ringo
mdsnode=all

If all nodes are set in the MDS placement range, an added node is automatically integrated into the range when a shared node is subsequently added using sfcnode(8).