LSI Raid 阵列日常操作

## 查raid卡状态
```
megacli -adpallinfo -a0
```
```
megacli -adpallinfo -a0|grep "Device Present" -a10
```
```
megacli -encinfo -a0
```

## 修复unconfigured(bad)
先转成good
```
megacli -PDMakeGood -PhysDrv[252:7] -a0
```

再清除foreign state
```
megacli -cfgforeign -clear -a0
```

## 更换Online硬盘
在线硬盘进入critical状态，但仍处于Online状态，需要更换的，使用以下操作更换硬盘

设置下线
```
megacli -PDOffline -PhysDrv [252:6] -a0
```
检查hotspare是否开始Reuild
```
megacli -PDlist -a0|egrep "Slot|Firmware|Enc"
```
检查rebuild进度
```
megacli -PDRbld -ShowProg -PhysDrv [252:7] -a0
```
hotspare进入rebuild之后，拔掉offline的硬盘，替换新的硬盘，检查状态
```
megacli -PDlist -a0|egrep "Slot|Firmware|Enc"
```
```
megacli -adpallinfo -a0|grep "Device Present" -a10
```
hotsoare完成rebuild之后，新替换的硬盘会自动进入CopyBack，检查copyback进度
```
megacli -PDCpyBk -ShowProg -PhysDrv[252:7] -a0
```
## 更换hotspare盘
hotspare盘进入critical状态，需要更换的，使用以下操作更换硬盘

移除hotspare
```
megacli -PDHSP -Rmv -PhysDrv [252:1] -a0
```
检查是否变成unconfigured good, spun up
```
megacli -PDlist -a0|egrep "Slot|Firmware|Enc"
```

替换硬盘

检查是否有foreign configuration
```
megacli -CfgForeign -Scan -a0
```
若有需要先清除foreign configuration
```
megacli -CfgForeign -Clear -a0
```
将新盘设置hotspare
```
megacli -PDHSP -Set -PhysDrv [252:1] -a0
```