Converting a Shared File System to an Unshared File System

Converting a Sun QFS shared file system to an unshared Sun QFS file system requires two tasks:

• Removing the shared clients.

• Converting the metadata server.

This section describes these procedures.

How to Remove a Client From a Shared File System

1. Unmount the file system.

   For instructions, see Unmounting File Systems in Sun QFS and Sun Storage Archive Manager 5.3 Installation Guide.

2. Delete the file system's entry from the /etc/opt/SUNWsamfs/mcf file.
3. Delete the file system's entry from the /etc/vfstab file.
4. Notify the sam-fsd daemon of the configuration changes by issuing the samd config command.

   # samd config

5. Delete the mount point for the file system.

How to Convert a Shared Metadata Server to an Unshared System

1. As superuser, log in to the metadata server system.
2. Back up all site-customized system files and configuration files.

   Depending on your software, these files might include the mcf, archiver.cmd, defaults.conf, samfs.cmd, and inquiry.conf files. Back up these files for all file systems. Also make sure that you have backup copies of files in the /etc/opt/SUNWsamfs directory and files in the /var/opt/SUNWsamfs directory.

3. If you want to move files from an existing Sun QFS shared file system into a new Sun QFS file system, ensure that each file system to be modified is backed up.

   File systems should be backed up regularly according to your site's policies. This is described as the last step in the installation procedure. If you are comfortable with the backup files that already exist for your file systems, you do not need to back them up again now.

4. Unmount the file system.

   For instructions, see Unmounting File Systems in Sun QFS and Sun Storage Archive Manager 5.3 Installation Guide.

5. Run the samfsck -F -U file-system-name command to convert the Sun QFS shared file system to an unshared file system.

   For file-system-name, specify the name of the Sun QFS shared file system that you are converting to a new unshared file system. For example:

   # samfsck -F -U samfs1

6. In the /etc/opt/SUNWsamfs/mcf file, remove the shared keyword from the file system's Additional Parameters field.

   For example:

   # Equipment Eq Eq Family Dev Add
   # Identifier Ord Type Set State Params
   # ---------- --- ---- ------ ----- ------
   samfs1 10 ma samfs1 on
   /dev/dsk/c2t50020F23000065EEd0s6 11 mm samfs1 on
   /dev/dsk/c7t50020F2300005D22d0s6 12 mr samfs1 on
   /dev/dsk/c7t50020F2300006099d0s6 13 mr samfs1 on
   /dev/dsk/c7t50020F230000651Cd0s6 14 mr samfs1 on

7. In the /etc/vfstab file, remove the shared keyword from the file system's Mount Parameters field.

   For example:

   # File /etc/vfstab
   # FS name FS to fsck Mnt pt FS type fsck pass Mt@boot Mt params
   samfs1 - /samfs1 samfs - no

8. Delete the /etc/opt/SUNWsamfs/hosts. file-system-name configuration file.
9. Notify the sam-fsd daemon of the configuration changes by issuing the samd config command.

   # samd config

10. Issue the mount command to mount the file system.