mksysb
1. Create image.data and system backup (-X expands /tmp if required):
# mksysb -i -X /dev/rmt0
2. Create image.data file with map file and system backup:
# mksysb -m /dev/rmt0
3. Create system data but excludes the files listed in /etc/exclude.rootvg:
# mksysb -e /dev/rmt0
mkszfile
1. Create /image.data file:
# mkszfile
mkcd
1. Create system boot backup to the CD-R device /dev/cd1 (mksysb):
# mkcd -d /dev/cd1
2. Create backup of VG datavg to CD-R device /dev/cd1 (savevg):
# mkcd -d /dev/cd1 -v datavg
savevg
1. Create datavg.data image file and backup vg datavg (path = /tmp/vgdata/datavg/datavg.data):
savevg -i -f /dev/rmt0 datavg
2. Create datavg backup but exclude files listed in the /etc/exclude.datavg:
# savevg -ef /dev/rmt0 datavg
backup
1. Backup entire system to rmt0:
# find / -print | backup -ivf /dev/rmt0
2. Backup /home directory to rmt0 with backup level 0:
# backup -0vf /dev/rmt0 /home
restore
1. List the archive in rmt0:
# restore -Tvf /dev/rmt0
2. Restore /home from archive in device rmt0:
# restore -xvf /dev/rmt0 /home
3. Restore particular file from /export/mksysb image:
# restore –xvf /export/mksysb ./etc/sshd.conf
4. Restor only a file attribute from tape:
# restore -Pa -vf /dev/rmt0 ./etc/passwd
5. Archive /home directory:
# find ./home -print |cpio -ocvumB > /dev/rmt0
6. Restore cpio archive from rmt0:
# cpio -icvdumB
cpio
1. List the contents of cpio archive from rmt0:
# cpio -ivt
2. Restore /home directory from rmt0:
# cpio -icvd
tar
1. Archive /home to rmt0 device:
# tar -cvf /dev/rmt0 /home
2. List the archives in rmt0:
# tar -tvf /dev/rmt0
3. Extract /home from rmt0:
# tar -xvf /dev/rmt0 /home
dd
1. Convert and copy ascii file to ebcdic file2:
# dd if=file1 of=file2 conv=ebcdic
2. Copy 31st block and paste to 1st block in the hd4 ( ie.to fix currupted superblock by restoring it's backup copy to original location):
# dd count=1 bs=4k skip 31 seek=1 if=/dev/hd4 of=/dev/hd4
3. To copy blocks from rmt0 with 512 blocks to rmt1 with 1024 blocks:
# dd if=/dev/rmt0 ibs=512 obs=1024 of=/dev/rmt1
tctl
1. To rewind the tape:
# tctl -f /dev/rmt0 rewind
2. To eject the tape:
# tctl -f /dev/rmt0 offline
3. To show the status of tape:
# tctl -f /dev/rmt0 status
tcopy
1. To copy contents of 1st tape(tape0) to 2nd tape(tape1). It is useful when the size of the tapes are different:
# tcopy /dev/rmt0.0 /dev/rmt1.0
2. To show no. of files and block size in the tape:
# tcopy /dev/rmt0
chdev
1. To change the block size of the tape to 51201:
# chdev -l rmt0 -a block_size=512
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