How to rename a SAM-QFS file system

In order to rename a SAM-QFS file system you simply need to make the changes in the mcf file and inform sam-fsd of these changes.

The following procedure outlines the steps necessary to complete this task. (in this example we will rename samfs2 to newfs3):

1. As root, unmount the SAM-QFS file system you wish to rename:

   # umount samfs2

2. Edit /etc/opt/SUNWsamfs/mcf and change the family set name to reflect your new file system name.

   Example before changes:

   # grep samfs2 /etc/opt/SUNWsamfs/mcf
   samfs2                200        ma         samfs2      on
     /dev/dsk/c0t3d0s0   201        mm         samfs2      on
     /dev/dsk/c1t3d0s0   202        md         samfs2      on
     /dev/dsk/c1t4d0s0   203        md         samfs2      on
   

   Example after changes:

   # grep newfs3 /etc/opt/SUNWsamfs/mcf
   newfs3                200        ma         newfs3      on
     /dev/dsk/c0t3d0s0   201        mm         newfs3      on
     /dev/dsk/c1t3d0s0   202        md         newfs3      on
     /dev/dsk/c1t4d0s0   203        md         newfs3      on
   

3. Edit /etc/vfstab and change the entry to reflect the new family set name.
4. Run the samd config command to inform sam-fsd of the changes made:

   # samd config

5. Run samfsck with the -F and -R options to rename the SAM-QFS file system and rewrite the superblock with the new family set name.

   # samfsck -F -R newfs3

6. Mount the new file system (use mkdir to create the new mount point if necessary)