IBM小型机内置RAID更换故障硬盘.docx

一、现象描述?一台IBM小型机，带RAID卡，内置3块硬盘，做RAID5，无热备?第2块硬盘亮黄色故障灯二、做好rootvg备份（mksysb）和数据备份（强烈建议）备份完数据后，为了安全，停止应用对硬盘的访问三、故障确认?执行lsdevCc pdisk/hdisk、errpt命令查看系统是否有硬盘报错?用diag-Task selection - RAID Array Manager -IBM SASDisk Array Manager -List IBM SASDisk Array configuration检查raid信息和pdisk的状态hdisk00B-08-ff-0,0DegradedRAID 5 Array484.2GBpdisk00B-08-00-5,0FailedArray Member242.8GBpdisk10B-08-01-5,0ActiveArray Member242.8GBpdisk20B-08-00-3,0ActiveArray Member242.8GB?用以下操作再次确认硬盘槽位信息：Diag-Task Selection-RAID Array Manager-IBM SASDisk Array Manager- Diagnostics and Recovery Options-SCSI and SCSI RAID Hot Plug Manager- Identify a Device Attached to a SCSI Hot Swap Enclosure Device选择对应的硬盘，按F7确认硬盘所在的槽位（磁盘的黄灯在闪烁）四、进行磁盘更换1)用hot plug把硬盘更换，操作如下：diag?Task Selection?RAID Array Manager?IBM SASDisk Array Manager?Diagnostics and Recovery Options?SCSI and SCSI RAID Hot Plug Manager?Replace/Remove a Device Attached to an SCSI Hot Swap Enclosure Device把故障硬盘更换，回车然后按F3回到上一层菜单SCSI and SCSI RAID Hot Plug ManagerConfigure Added/Replaced Devices2)更换硬盘后，回到diag-Task selection -RAID Array Manager -IBM SASDisk Array Manager -List IBM SAS Disk Array configuration可以看到pdiskX的状态是failed，比如下图：3)hdisk00B-08-ff-0,0DegradedRAID 5 Array484.2GB4)pdisk00B-08-00-5,0FailedArray Member242.8GB5)pdisk10B-08-01-5,0ActiveArray Member242.8GB6)pdisk20B-08-00-3,0ActiveArray Member242.8GB7)用lsdevCc pdisk是可以看到pdisk0是available五、对RAID进行重建diag-Task selection -RAID Array Manager -IBM SASDisk Array Manager -Reconstruct a IBM SASDisk Array选择新产生的磁盘pdisk0进行重建(对146GB HDD大概需要4小时)重建有进度显示，可以退出重建在后台执行六、重建完毕后，确认RAID的状态为optimaldiag-Task selection -RAID Array Ma