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电梯直达

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发表于 2008-07-02 13:06 |只看该作者 |倒序浏览

在一台F4800上查看metastat -t的输出如下：
d1: Mirror
Submirror 0: d11
   State: Needs maintenance Tue Jan 15 19:31:24 2008
Submirror 1: d21
   State: Needs maintenance Tue Jan 15 23:20:51 2008
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 71455872 blocks (34 GB)

d11: Submirror of d1
State: Needs maintenance Tue Jan 15 19:31:24 2008
Invoke: metasync d1
Size: 71455872 blocks (34 GB)
Stripe 0:
Device    Start Dbase State    Reloc Hot Spare Time
c0t0d0s1    0 No Okay       Yes          Tue Jan 15 19:30:45 2008

d21: Submirror of d1
State: Needs maintenance Tue Jan 15 23:20:51 2008
Invoke: metasync d1
Size: 71455872 blocks (34 GB)
Stripe 0:
Device    Start Dbase State    Reloc Hot Spare Time
c0t1d0s1    0 No Okay       Yes          Tue Jan 15 19:31:05 2008

d0: Mirror
Submirror 0: d10
   State: Needs maintenance Tue Jan 15 19:31:16 2008
Submirror 1: d20
   State: Needs maintenance Tue Jan 15 23:20:57 2008
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 71689920 blocks (34 GB)

d10: Submirror of d0
State: Needs maintenance Tue Jan 15 19:31:16 2008
Invoke: metasync d0
Size: 71689920 blocks (34 GB)
Stripe 0:
Device    Start Dbase State    Reloc Hot Spare Time
c0t0d0s0    0 No Okay       Yes          Tue Jan 15 19:30:32 2008

d20: Submirror of d0
State: Needs maintenance Tue Jan 15 23:20:57 2008
Invoke: metasync d0
Size: 71689920 blocks (34 GB)
Stripe 0:
Device    Start Dbase State    Reloc Hot Spare Time
c0t1d0s0    0 No Okay       Yes          Tue Jan 15 19:30:55 2008

Device Relocation Information:
Device Reloc Device ID
c0t1d0 Yes    id1,sd@THITACHI_DK32EJ-72NC_____415D2328
c0t0d0 Yes    id1,sd@THITACHI_DK32EJ-72NC_____415C4966

d0 d1的子镜状态都是Needs maintenance，为何它们的设备状态是Okay的？子镜需要维护这是什么原因做成的，如果按照它提示的执行metasync d0,metasync d1有没有风险？