更换SSA RAID阵列中硬盘的步骤.doc

建了RAID的磁盘阵列在使用过程中可能会发生硬盘出现故障需要更换的情况，本文介绍了安全更换硬盘而不破坏数据的详细步骤。1. 首先需要从RAID定义中逻辑上删除故障硬盘。执行下面的命令：# smit ssaraid- Change Member Disks in an SSA RAID Array- Remove a Disk from an SSA RAID Array2. 屏幕显示出如下的阵列列表：Change Member Disks in an SSA RAID ArrayMove cursor to desired item and press Enter.Remove a Disk From an SSA RAID ArrayAdd a Disk to an SSA RAID ArraySwap Members of an SSA RAID Array-SSA RAID Array Move cursor to desired item and press Enter. Use arrow keys to scroll. hdisk6 -6010337B163E30K good -2.3GB -RAID-5 array hdisk5 -09523173A02137K good -2.3GB -RAID-5 array F1=Help -F2=Refresh -F3=Cancel F8=Image -F10=Exit -Enter=Do /=Find - n=Find Next -选择要删除的硬盘所在的阵列的名称，在本例中选择 hdisk6。3. 屏幕显示如下的信息：Remove a Disk From an SSA RAID ArrayType or select values in entry fields.Press Enter AFTER making all desired changes.-Entry FieldsSSA RAID Manager -ssa1SSA RAID Array -hdisk6Connection Address / Array Name -6010337B163E30K* Disk to Remove -+F1=Help -F2=Refresh -F3=Cancel -F4=ListF5=Reset -F6=Command -F7=Edit -F8=Image F9=Shell -F10=Exit -Enter=Do 按下F4键，列出属于该RAID阵列中的硬盘。 4. 硬盘列表显示如下：Remove a Disk From an SSA RAID ArrayType or select values in entry fields.Press Enter AFTER making all desired changes.-Entry FieldsSSA RAID Manager -ssa1SSA RAID Array -hdisk6Connection Address / Array Name -6010337B163E30K* Disk to Remove -+-Disk to Remove Move cursor to desired item and press Enter. Use arrow keys to scroll. pdisk4 -0004AC50374D00D member -present -1.1GB -Physical pdisk5 -0004AC510D9100D member -present -1.1GB -Physical pdisk7 -0004AC510D9900D member -present -1.1GB- Physical F1=Help -F2=Refresh -F3=Cancel F8=Image -F10=Exit - Enter=Do /=Find - n=Find Next -从上面显示的列表中选择需要删除的硬盘。5. 使用“Set service Mode”服务帮助将需要删除的硬盘设置为维护模式。命令如下：# diag- Task Selection (Service Aids )- SSA Service Aids - Set Service Mode - (选择硬盘)- Set or Reset Service Mode This will set the drive to service so the drive canbe replaced. You will see a prompt displayed nextto the drive listing when service is set.例:-pdisk0 -AC503429 -00-03-P -1GB SSA C Physical Disk Drive-pdisk1 -AC510D98 -00-03-P -1GB SSA C Physical Disk Drive-pdisk2 -AC510D91 -00-03-P -1GB SSA C Physical Disk Drive-pdisk3 -AC510D96 -00-03-P -1GB SSA C Physical Disk Drive-pdisk4 -AC50374D -00-03-P -1GB SSA C Physical Disk Drive pdisk5 -AC510D91 -00-03-P -1GB SSA C Physical Disk Drive-pdisk6 -AC510DBB -00-03-P -1GB SSA C Physical Disk Drive-pdisk7 -AC510D99 -00-03-P -1GB SSA C Physical Disk Drive6. 物理上拿掉故障硬盘。若不确定是那一块，可以看到故障硬盘的电源灯旁的黄色检查灯是亮的。7. 物理上安装好替换的硬盘。8. 按照步骤5的方法将硬盘从维护模式设置回普通模式。 9. 逻辑上从系统中删除旧的硬盘信息，再将新更换的硬盘配置起来：# rmdev -dl pdisk* (其中，pdisk* 为具体的硬盘号，本例中为pdisk5。) # cfgmgr10. 下面需要将新更换的硬盘设置为阵列的候选盘：# smitty ssaraid- Change/Show Use of an SSA Physical Disk- - 选择正确的 SSA Raid卡。从列表中选择正确的硬盘 (屏幕显示如下)-SSA Physical Disk Move cursor to desired item and press Enter. Use arrow keys to scroll. # SSA physical disks that are members of arrays. pdisk4 -0004AC50374D00D member -n/a -1.1GB -Physical pdisk7 -0004AC510D9900D member -n/a -1.1GB -Physical # # SSA physical disks that are AIX system disks. pdisk5 -0004AC510D9300D system n/a -1.1GB Physical F1=Help - F2=Refresh -F3=Cancel F8=Image -F10=Exit -Enter=Do /=Find -n=Find Next -Make sure the Current Use Parameter is set to Array Candidate Disk onthe next screen (listed below). Press Tab on Current Use to changeand then Enter to execute.Change/Show Use of an SSA Physical DiskType or select values in entry fields.Press Enter AFTER making all desired changes.-Entry FieldsSSA RAID Manager -ssa1SSA Physical Disk- pdisk5 CONNECTION address -0004AC510D9300D Current Use -Array Candidate Disk11. 将新更换的硬盘添加回RAID阵列中:# smit ssaraid- Change Member Disks in an SSA RAID Array - Add a Disk to an SSA RAID Array-选择正确的RAID名称，-按F4选择硬盘按回车后，选择的硬盘被加入到RAID阵列中，系统在该硬盘上自动重建信息。12. 查看信息重建的状态：# smit ssaraid- List Status Of All Defined SSA RAID Arrays屏幕显示如下：COMMAND STATUSCommand: OK -stdout: yes -stderr: noBefore command