====== 54 DRBD ======

===== 確認 =====
<code>
[root@fl8.jp　~]# /etc/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.4.5 (api:1/proto:86-101)
GIT-hash: 1d360bde0e095d495786eaeb2a1ac76888e4db96 build by mockbuild@Build64R5, 2014-08-18 20:00:36
m:res     cs         ro                 ds                 p  mounted         fstype
0:zabbix  Connected  Primary/Secondary  UpToDate/UpToDate  C  /mnt/mysql      ext3
0:zabbix  Connected  Primary/Secondary  UpToDate/UpToDate  C  /var/lib/mysql  ext3
</code>


正常:
  Secondary/Primary
  Primary/Secondary
異常:
  Secondary/Secondary
  Primary/Unknown
  Secondary/Unknown

===== ①DRDB再同期 =====

==== Secondary側で作業 ====
drbd 切断/接続
<code>
# drbdadm down all
# drbdadm up all
</code>


===== ②DRDB再同期 =====

==== Secondary側で作業 ====
<code>
# drbdadm down all
# drbdadm invalidate all
# drbdadm up all
# drbdadm connect all
</code>

==== Primary側で作業 ====

<code>
# drbdadm connect all
</code>


{{tag>DRBD}}