バックアップサーバへのバックアップ

ローカルディスクにバックアップを取っても、 ディスクがクラッシュしてしまうともともこもない。
我が家では rsync を用いて全 LinkStation のバックアップを 赤いLinkStationに置いている。

以下、基本的には LS-GL と同じ。

HS-DHGL の設定

rsync のインストール

sil:~# apt-get install rsync
Reading package lists... Done
Building dependency tree... Done
Suggested packages:
  openssh-client openssh-server
The following NEW packages will be installed:
  rsync
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 267kB of archives.
After unpacking 520kB of additional disk space will be used.
Get:1 http://ftp2.jp.debian.org etch/main rsync 2.6.9-2 [267kB]
Fetched 267kB in 1s (257kB/s)
Selecting previously deselected package rsync.
(Reading database ... 10339 files and directories currently installed.)
Unpacking rsync (from .../archives/rsync_2.6.9-2_arm.deb) ...
Setting up rsync (2.6.9-2) ...
rsync daemon not enabled in /etc/default/rsync, not starting...

sil:~#

/etc/default/rsync の修正

sil:~# cd /etc/default/
sil:/etc/default# mv rsync rsync.orig
sil:/etc/default# cp rsync.orig rsync
sil:/etc/default# ls -l rsync*
-rw-r--r-- 1 root root 1352 Jul 14 18:13 rsync
-rw-r--r-- 1 root root 1352 Nov 21  2006 rsync.orig
sil:/etc/default# vi rsync
	:
	:
sil:/etc/default# diff -c rsync.orig rsync
*** rsync.orig  Tue Nov 21 01:27:02 2006
--- rsync       Sat Jul 14 18:14:22 2007
***************
*** 5,11 ****
  #  Use "inetd" if you want to start the rsyncd from inetd,
  #  all this does is prevent the init.d script from printing a message
  #  about not starting rsyncd (you still need to modify inetd's config yourself).
! RSYNC_ENABLE=false

  # which file should be used as the configuration file for rsync.
  # This file is used instead of the default /etc/rsyncd.conf
--- 5,11 ----
  #  Use "inetd" if you want to start the rsyncd from inetd,
  #  all this does is prevent the init.d script from printing a message
  #  about not starting rsyncd (you still need to modify inetd's config yourself).
! RSYNC_ENABLE=inetd

  # which file should be used as the configuration file for rsync.
  # This file is used instead of the default /etc/rsyncd.conf
sil:/etc/default#

/etc/rsyncd.conf の作成

sil:/etc/default# cd ..
sil:/etc# vi rsyncd.conf
	:
	:
sil:/etc# cat rsyncd.conf
[Backup]
        path = /mnt/Backup
        hosts allow = 192.168.1.0/24
sil:/etc#

/etc/services の確認

sil:/etc# grep rsync /etc/services
rsync           873/tcp
rsync           873/udp
sil:/etc#

/etc/inetd.conf の修正

sil:/etc# mv inetd.conf inetd.conf.orig
sil:/etc# cp inetd.conf.orig inetd.conf
sil:/etc# ls -l inetd.conf*
-rw-r--r-- 1 root root 1410 Jul 14 18:18 inetd.conf
-rw-r--r-- 1 root root 1410 Jul  1 17:15 inetd.conf.orig
sil:/etc# vi inetd.conf
	:
	:
sil:/etc# diff -c inetd.conf.orig inetd.conf
*** inetd.conf.orig     Sun Jul  1 17:15:55 2007
--- inetd.conf  Sat Jul 14 18:19:19 2007
***************
*** 43,46 ****
--- 43,47 ----

  #:OTHER: Other services
  ## netbios-ssn   stream  tcp     nowait  root    /usr/sbin/tcpd  /usr/sbin/smbd
+ rsync   stream  tcp     nowait  root    /usr/sbin/tcpd /usr/bin/rsync --daemon

sil:/etc#

inetd.conf の reload

sil:/etc# kill -HUP `cat /var/run/inetd.pid `
sil:/etc#

赤い LinkStation の設定

手動で確認

[root@red sbin]# cd /mnt
[root@red /mnt]# rsync -rtuvpogtlH rsync://sil/Backup Backup
receiving file list ... done
./
sil/
sil/sil.0707/
sil/sil.0707/sil-bin.Sat.tar.gz
sil/sil.0707/sil-boot.Sat.tar.gz
sil/sil.0707/sil-buffalo.Sat.tar.gz
sil/sil.0707/sil-dev.Sat.tar.gz
sil/sil.0707/sil-etc.Sat.tar.gz
sil/sil.0707/sil-home.Sat.tar.gz
sil/sil.0707/sil-initrd.Sat.tar.gz
sil/sil.0707/sil-lib.Sat.tar.gz
sil/sil.0707/sil-media.Sat.tar.gz
sil/sil.0707/sil-opt.Sat.tar.gz
sil/sil.0707/sil-root.Sat.tar.gz
sil/sil.0707/sil-sbin.Sat.tar.gz
sil/sil.0707/sil-srv.Sat.tar.gz
sil/sil.0707/sil-sys.Sat.tar.gz
sil/sil.0707/sil-usr.Sat.tar.gz
sil/sil.0707/sil-var.Sat.tar.gz
sil/sil.0707/sil-yasunari.Sat.tar.gz
wrote 358 bytes  read 263898595 bytes  3968405.31 bytes/sec
total size is 263865001  speedup is 1.00
[root@red /mnt]#

バックアップスクリプトへの追加

#! /bin/sh

LOCKFILE=/tmp/`basename $0`
if [ -f $LOCKFILE ]
then
        echo $0 already running
        exit
fi
touch $LOCKFILE

#-------------------------------------

cd /mnt
for SRCHOST in giga link sil #gawa
do
        nice rsync -rtuvpogtlH rsync://$SRCHOST/Backup Backup
done

#-------------------------------------
rm -f $LOCKFILE

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