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# vi /etc/drbd.conf
#
# please have a a look at the example configuration file in
# /usr/share/doc/drbd82/drbd.conf
#
global { usage-count no; }
common { syncer { rate 10M; } }
resource r0 {
protocol C;
startup {
degr-wfc-timeout 120;
}
net {
cram-hmac-alg sha1;
shared-secret "FooFunFactory";
}
on bssv1.back-slash.com {
device /dev/drbd0;
disk /dev/VolGroup00/lvol0;
address 192.168.20.201:7789;
flexible-meta-disk internal;
}
on bssv2.back-slash.com {
device /dev/drbd0;
disk /dev/VolGroup00/lvol0;
address 192.168.20.202:7789;
meta-disk internal;
}
# drbdadm create-md r0
md_offset 1073737728
al_offset 1073704960
bm_offset 1073672192
Found some data
==> This might destroy existing data! <==
Do you want to proceed?
[need to type 'yes' to confirm] yes
v07 Magic number not found
v07 Magic number not found
You want me to create a v08 style flexible-size internal meta data block.
There apears to be a v08 flexible-size internal meta data block
already in place on /dev/VolGroup00/lvol0 at byte offset 1073737728
Do you really want to overwrite the existing v08 meta-data?
[need to type 'yes' to confirm] yes
Writing meta data...
initialising activity log
NOT initialized bitmap
New drbd meta data block sucessfully created.
# /etc/rc.d/init.d/drbd start
Starting DRBD resources: [ d(r0) s(r0) n(r0) ].
..........
***************************************************************
DRBD's startup script waits for the peer node(s) to appear.
- In case this node was already a degraded cluster before the
reboot the timeout is 120 seconds. [degr-wfc-timeout]
- If the peer was available before the reboot the timeout will
expire after 0 seconds. [wfc-timeout]
(These values are for resource 'r0'; 0 sec -> wait forever)
To abort waiting enter 'yes' [ 20]:yes
ノード2も実施
初期同期
# drbdadm -- --overwrite-data-of-peer primary all
状態確認
# /etc/rc.d/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.2.6 (api:88/proto:86-88)
GIT-hash: 3e69822d3bb4920a8c1bfdf7d647169eba7d2eb4 build by buildsvn@c5-i386-build, 2008-10-03 11:42:32
m:res cs st ds p mounted fstype
0:r0 SyncSource Primary/Secondary UpToDate/Inconsistent C
... sync'ed: 6.7% (980924/1048508)K
# /etc/rc.d/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.2.6 (api:88/proto:86-88)
GIT-hash: 3e69822d3bb4920a8c1bfdf7d647169eba7d2eb4 build by buildsvn@c5-i386-build, 2008-10-03 11:42:32
m:res cs st ds p mounted fstype
0:r0 Connected Primary/Secondary UpToDate/UpToDate C
# mkfs -t ext3 /dev/drbd0
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
131072 inodes, 262127 blocks
13106 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=268435456
8 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 32 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
■heartbeatのインストール
# yum -y install heartbeat
：
useradd: ユーザ hacluster は存在します
error: %pre(heartbeat-2.1.3-3.el5.centos.i386) scriptlet failed, exit status 9
error: install: %pre scriptlet failed (2), skipping heartbeat-2.1.3-3.el5.centos
：
エラーの為、再度インストール
# yum -y install heartbeat
# cp /usr/share/doc/heartbeat-2.1.3/ha.cf /etc/ha.d/
# vi /etc/ha.d/ha.cf
logfile /var/log/ha-log ← コメント解除
keepalive 2 ← コメント解除(ノード間死活監視時間(秒))
deadtime 30 ← コメント解除(ノードダウン検知時間(秒))
initdead 120 ← コメント解除
udpport 694 ← コメント解除(ブロードキャスト使用ポート番号)
baud 19200 ← コメント解除
serial /dev/ttyS0 # Linux ← コメント解除
watchdog /dev/watchdog ← コメント解除
node bssv1.back-slash.com ← 追加
node bssv2.back-slash.com ← 追加
# cp /usr/share/doc/heartbeat-2.1.3/authkeys /etc/ha.d/
# vi /etc/ha.d/authkeys
auth 2
#1 crc
#2 sha1 HI!
2 sha1 ********
#3 md5 Hello!
# chmod 600 /etc/ha.d/authkeys
# mkdir /data
# vi /etc/ha.d/haresources
bssv1.back-slash.com \
IPaddr2::192.168.24.200/24/eth0/ \
MailTo::maint@back-slash.co.jp::heartbeat_fail_over drbddisk::r0 \
Filesystem::/dev/drbd0::/data::ext3 \
mysql \
pgsql
# rm -rf /var/lib/heartbeat/crm/cib.xml
# /usr/lib/heartbeat/haresources2cib.py /etc/ha.d/haresources
# vi /var/lib/heartbeat/crm/cib.xml
：
<nvpair id="IPaddr_192_168_24_200_attr_1" name="nic" value="24"/>
↓
<nvpair id="IPaddr_192_168_24_200_attr_1" name="nic" value="eth0"/>
<nvpair id="IPaddr_192_168_24_200_attr_2" name="cidr_netmask" value=""/>
↓
<nvpair id="IPaddr_192_168_24_200_attr_2" name="cidr_netmask" value="24"/>
：
# chkconfig heartbeat on
# chkconfig --list heartbeat
heartbeat 0:off 1:off 2:on 3:on 4:on 5:on 6:off
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nacoz
