PRIMECLUSTER Installation and Administration Guide 4.2 (Linux for Itanium)

6.4 Initial GFS Setup

For a Global File Services (GFS) shared file system to be created on the Global Disk Services (GDS) volume, there must be a GDS volume and that volume must be active. If the volume is stopped, start the volume.

For information on the volume startup procedure, see "4.2.3 Operation" or "D.4 sdxvolume - Volume operations" in the "PRIMECLUSTER Global Disk Services Configuration and Administration Guide."

To use the GFS shared file system in RMS cluster operation, you need to set up GFS according to the flow below:

The device name and mount points that are specified here correspond to the values on the "GFS Shared File System Setup Worksheet."

• You need to prepare a management partition that is exclusive to the GFS shared file system. The GDS volume disk class is used for a switching file system and non-switching file system. For the management partition, non-switching file system must be allocated.

• If you are using a GFS shared file system, you must carry out "Setting Up Gds Resources."

Operation Procedure:

1. Create a management partition for the GFS shared file system on any one of the nodes.

   # sfcsetup -c /dev/sfdsk/class0001/rdsk/GFSctl

2. Register the node information in the management partition on each node.

   primecl01# sfcsetup -a /dev/sfdsk/class0001/rdsk/GFSctl

   primecl02# sfcsetup -a /dev/sfdsk/class0001/rdsk/GFSctl

3. Activate the GFS shared file system on each node.

   primecl01# sfcfrmstart

   primecl02# sfcfrmstart

   

   If sfcfrmstart ends abnormally, confirm that sfcprmd is started with the "ps" command. If sfcprmd has not been started, execute the following command on the node on which sfcprmd is not started:

   # service sfcfsrm start

4. Create a GFS shared file system on any one of the nodes.

   # sfcmkfs -o node=primecl01,primecl02 /dev/sfdsk/class0002/dsk/volume0001

5. Add the mount information of the GFS shared file system to /etc/fstab on each node. Specify "noauto" in the "mount options" filed of the mount information to be added. Do not specify "noatrc" in the same field.

   /dev/sfdsk/class0002/dsk/volume0001 /sfcfs1 sfcfs rw,noauto 0 0

6. Create a mount point on each node.

   primecl01# mkdir /sfcfs1

   primecl02# mkdir /sfcfs1

The operations described in procedures 4, 5, and 6 can be set up by using the GUI management view. For details, see "File System Creation."

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6.4.1 File System Creation