[SunHELP] Backup the whole system disk
Hitoshi TAKAHASHI
sunhelp at sunhelp.org
Tue May 22 02:49:20 CDT 2001
Hi Peter-san,
Thank you for your advice !!
I'll try to preserve backup patitions (see below) on your advice.
# df -k
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c0t0d0s0 10697176 317638 10272567 3% /
/dev/dsk/c0t0d0s6 2056211 1659502 335023 84% /usr
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
/dev/dsk/c0t0d0s7 3099287 271374 2765928 9% /export/home
swap 1932552 80 1932472 1% /tmp
/dev/dsk/c1t3d0s7 35153689 2508543 32293610 8% /export/med/hd
/dev/md/dsk/d0 295399001 2526500 289918511 1% /export/med/hd/0000
#
If you know about following, please give me an additinal advice.
Can I preserve the backup data of /dev/md/dsk/d0 using ufsdump ?
/dev/md/dsk/d0 is SOFT RAID established by Solstice Disksuite 4.1.
Regard,
-Hitoshi-
>Hi
>
>Firstly use the mount or df command to establish which partitions you have
>mounted. Each one will be of the form /dev/dsk/cXtYdZsA. ignore /tmp.
>
>Then use ufsdump to dump each partition to tape eg ufsdump 0f /dev/rmt/0n
>/dev/dsk/cXtYdZsA for the first tape drive
>
>If using one tape remember to use the non rewind device entry /dev/rmt/0n
>and not the rewind device /dev/rmt/0 to store successive partitions.
>
>When you have put each partition to tape, it is a simple matter of using
>ufsrestore to restore the partition. The great thing about ufsdump is that
>it preserves all of the data including device nodes and saves only physical
>disk partitions not the whole logical tree. Great for moving/changing disks
>etc.
>
>I find it useful to also save away at the same time a copy of df -k to show
>what the parttion sizes are.
>
>Peter
>
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