4. Backup file system using ufsdump
ufsdump 0cvf /dev/rmt/0 /dev/rdsk/c0t0d0s0
or
ufsdump 0cvf /dev/rmt/0 /usr
To restore a dump with ufsrestore
ufsrestore rvf /dev/rmt/0
ufsrestore in interactive mode allowing selection of individual files and directories using add , ls , cd , pwd and extract commands .
ufsrestore -i /dev/rmt/0
Making a copy of a disk slice using ufsdump
ufsdump 0f – /dev/rdsk/c0t0d0s7 |(cd /mnt/backup ;ufsrestore xf -)
Backing up all files in a directory including subdirectories to a tape device (/dev/rmt/0),
tar cvf /dev/rmt/0 *
Viewing a tar backup on a tape
tar tvf /dev/rmt/0
Extracting tar backup from the tape
tar xvf /dev/rmt/0
(Restoration will go to present directory or original backup path depending on relative or absolute path names used for backup )
Backup using cpio
find . -depth -print | cpio -ovcB > /dev/rmt/0
Viewing cpio files on a tape
cpio -ivtB < /dev/rmt/0
Restoring a cpio backup
cpio -ivcB < /dev/rmt/0
Compressing a file
compress -v file_name
gzip filename
To uncompress a file
uncompress file_name.Z
or
gunzip filename