PRIMECLUSTER Global File Services Configuration and Administration Guide 4.2 (Solaris(TM) Operating Environment)

26.1 Migration from a UFS file system

Note the following when migrating from an existing UFS file system to a GFS Shared File System:

• UFS quota function user limit values must be reset
• tar(1) must be used to migrate UFS files with an ACL
• When a UFS file is moved to a GFS Shared File System, all holes in the file definition will have an area assigned in the GFS Shared File System. The file no longer has any holes.

File system migration first requires that the files and directories on the UFS file system be saved in a separate location (for example, on a backup device or another file system). The new GFS Shared File System can then be configured and the files and directories expanded. Use the following procedure to accomplish this:

1. Check that the UFS file system is not in use.
2. Save all the files on the UFS file system to a backup device or another file system using the appropriate command such as tar(1) and cpio(1).
3. Create the GFS Shared File System, as described in Section 21.2, "Creation" and Section 22.2, "Flow from file system creation to mount/unmount."
4. Restore the saved files to the newly created GFS Shared File System.

The following shows an example of migration on the same partition.

# cd /ufsmnt                                    <- /ufsmnt is the mount point for the UFS file system from which to migrate.
# tar cvpf - . > /data/backup.tar            <-Save files.
# cd /
# umount /ufsmnt

Perform the GDS setup and the setup of a management partition.

(For details on GDS setup, see "PRIMECLUSTER Global Disk Services Configuration and Administration Guide")

# sfcnewfs -H mikan,mango /dev/FJSVgdhd/rdsk/gdhd0s1   <- Configure the GFS Shared File System.
# cd /sfcfs                                             <- Move to the mount point of /sfcfs.
# tar xvf /data/backup.tar                              <- Restore the backup file to the GFS Shared File System.

[Figure Migration from the UFS File System]