Solaris卷状态出现maintenance的处理
Solaris卷状态出现maintenance的处理
昨天登陆到一台SUN blade 2500，看到如下信息
root@WEBServer
# metastat
d20: Mirror
Submirror 0: d21
State: Needs maintenance
Submirror 1: d22
State: Needs maintenance
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 277764096 blocks
d21: Submirror of d20
State: Needs maintenance
Invoke: metareplace d20 c0t0d0s0
Size: 277764096 blocks
Stripe 0:
Device Start BlockDbase State Hot Spare
c0t0d0s0 0 No Maintenance
d22: Submirror of d20
State: Needs maintenance
Invoke: after replacing "Maintenance" components:
metareplace d20 c0t1d0s0
Size: 277764096 blocks
Stripe 0:
Device Start BlockDbase State Hot Spare
c0t1d0s0 0 No Last Erred
Sun管理的卷不正常了，原因是两个submirror数据同步出现了问题，需要重做同步。解决方法如下
1. 使用format 工具，检查是否有坏块
该机器配置了2个硬盘作为镜像，两个硬盘都要检测一遍。
format--> 选择 盘1 (c0t0)--> analyze --> read on each disk, read过程很慢，耐心等待
完成后同样步骤换盘2去read。整个过程大约耗费了2小时。
最后系统报告正常，万幸磁盘没有坏
http://www.cublog.cn/images/face/016.gif
,不然老板又要生气了..
analyze> read
Ready to analyze (won't harm SunOS). This takes a long time,
but is interruptable with CTRL-C. Continue? yes
pass 0
14086/23/734
pass 1
14086/23/734
Total of 0 defective blocks repaired.
2. 同步mirror
执行如下命令同步meta data.
#metareplace -e d20 c0t0d0s0
查看mirror状态,看到同步过程Resyncing。
root@WEBServer
# metastat
d20: Mirror
Submirror 0: d21
State: Resyncing
Submirror 1: d22
State: Needs maintenance
Resync in progress: 0 % done
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 277764096 blocks
d21: Submirror of d20
State: Resyncing
Size: 277764096 blocks
Stripe 0:
Device Start BlockDbase State Hot Spare
c0t0d0s0 0 No Resyncing
d22: Submirror of d20
State: Needs maintenance
Size: 277764096 blocks
Stripe 0:
Device Start BlockDbase State Hot Spare
c0t1d0s0 0 No Last Erred
等d21完成后，再同步d22。时间很长，每步要等4-5小时。。。
#metareplace -e d20 c0t1d0s0
3. 最后执行metastat查看状态正常
root@WEBServer
# metastat
d20: Mirror
Submirror 0: d21
State: Okay
Submirror 1: d22
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 277764096 blocks
d21: Submirror of d20
State: Okay
Size: 277764096 blocks
Stripe 0:
Device Start BlockDbase State Hot Spare
c0t0d0s0 0 No Okay
本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u1/43930/showart_345792.html
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