Many methed exist for backing up file system data on UNIX . The ufsdump command is a powerful backing up a single filesystem to a file on disk.
The ufsdump command can be intimidating For simple backups, most options are not relevant. For instance, to backup the /usr filesystem to a file called /data/usr.ufs, use this command:
ufsdump 0f /data/usr.ufs /usr
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