更换SSA RAID阵列中硬盘的步骤
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| 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 Array 2. 屏幕显示出如下的阵列列表： Change Member Disks in an SSA RAID Array Move cursor to desired item and press Enter. Remove a Disk From an SSA RAID Array Add a Disk to an SSA RAID Array Swap 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 Array Type or select values in entry fields. Press Enter AFTER making all desired changes. ------------------------------------------[Entry Fields] SSA RAID Manager ---------------------------ssa1 SSA RAID Array -----------------------------hdisk6 Connection Address / Array Name ------------6010337B163E30K * Disk to Remove ---------------------------------------------+ F1=Help ---F2=Refresh ---F3=Cancel ---F4=List F5=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 Array Type or select values in entry fields. Press Enter AFTER making all desired changes. ------------------------------------[Entry Fields] SSA RAID Manager ---------------------ssa1 SSA RAID Array -----------------------hdisk6 Connection 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 can be replaced. You will see a > prompt displayed next to 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 Drive 6. 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。) # cfgmgr 10. 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 on the next screen (listed below). Press Tab on Current Use to change and then Enter to execute. Change/Show Use of an SSA Physical Disk Type or select values in entry fields. Press Enter AFTER making all desired changes. ----------------------[Entry Fields] SSA RAID Manager ------ssa1 SSA Physical Disk----- pdisk5 CONNECTION address ----0004AC510D9300D Current Use -----------Array Candidate Disk 11. 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 STATUS Command: OK ----stdout: yes ----stderr: no Before command completion, additional instructions may appear below. Unsynced Parity Strips Unbuilt Data Strips hdisk2 ----3428 ------6856 F1=Help ----F2=Refresh --F3=Cancel --F6=Command F8=Image ---F9=Shell ----F10=Exit ---/=Find n=Find Next |
2009-04-14
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