バックアップのお話。
HA8000にはDDS4のテープドライブが付いているので
こいつを利用しない手はない。
と、思ったが．．．メディアがない．．．ので
オークションで4本で2,100円也の旧パッケージのIMATION DDS4をGET！！

以前にもいろいろなバックアップに手を染めてみたが
http://docs.freebsd.org/doc/4.4-RELEASE/usr/share/doc/ja/books/handbook/backup-programs.html
HDDの換装でも実績があるし、Dump/Restoreが一番間違いないと思う。

とりあえず現在の状況を把握する。
# df
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ar0s1a 507630 133374 333646 29% /
devfs 1 1 0 100% /dev
/dev/ar0s1e 507630 18 467002 0% /tmp
/dev/ar0s1f 30802718 3038436 25300066 11% /usr
/dev/ar0s1d 3027598 131906 2653486 5% /var

とるべきバックアップは、/, /usr, /varの3つのファイルシステム

# dump 0auf /dev/sa0 /dev/ar0s1a
DUMP: WARNING: should use -L when dumping live read-write filesystems!
DUMP: Date of this level 0 dump: Sat Oct 4 16:46:48 2008
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/ar0s1a (/) to /dev/sa0
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 132403 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
DUMP: DUMP: 132406 tape blocks on 1 volume
DUMP: finished in 88 seconds, throughput 1504 KBytes/sec
DUMP: level 0 dump on Sat Oct 4 16:46:48 2008
DUMP: Closing /dev/nsa0
DUMP: DUMP IS DONE

# /usr/bin/mt offline

# dump 0auf /dev/sa0 /dev/ar0s1d
DUMP: WARNING: should use -L when dumping live read-write filesystems!
DUMP: Date of this level 0 dump: Sat Oct 4 16:52:41 2008
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/ar0s1d (/var) to /dev/sa0
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 142610 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
DUMP: DUMP: 142562 tape blocks on 1 volume
DUMP: finished in 64 seconds, throughput 2227 KBytes/sec
DUMP: level 0 dump on Sat Oct 4 16:52:41 2008
DUMP: Closing /dev/sa0
DUMP: DUMP IS DONE

# /usr/bin/mt offline

# dump 0auf /dev/sa0 /dev/ar0s1f
DUMP: WARNING: should use -L when dumping live read-write filesystems!
DUMP: Date of this level 0 dump: Sat Oct 4 16:57:10 2008
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/ar0s1f (/usr) to /dev/sa0
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 3081352 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
DUMP: 16.25% done, finished in 0:25 at Sat Oct 4 17:27:59 2008
DUMP: 41.07% done, finished in 0:14 at Sat Oct 4 17:21:34 2008
DUMP: 65.45% done, finished in 0:07 at Sat Oct 4 17:20:09 2008
DUMP: 90.05% done, finished in 0:02 at Sat Oct 4 17:19:26 2008
DUMP: DUMP: 3083218 tape blocks on 1 volume
DUMP: finished in 1349 seconds, throughput 2285 KBytes/sec
DUMP: level 0 dump on Sat Oct 4 16:57:10 2008
DUMP: Closing /dev/sa0
DUMP: DUMP IS DONE

# /usr/bin/mt offline

/usrはさすがに時間がかかったが無事終了。

この他にtarで固めたり、WordPressの.xmlやらphpMyAdminでエクスポートした
MySQLの.sqlとかあるのでなんとかなるだろう（笑