AIX根盘镜像更换hdisk0.docx

操作步骤1. 更换前作系统备份; 选择磁带备份操作系统Smit mksysb 2. 注意查看双机状态，看应用是否跑在备机上(注意：一定确认双机的状态)/usr/es/sbin/cluster/ut*/cldump3. 查看报错，确认故障盘errpt4. 查看卷组状态test14/#lsvg -l rootvgrootvg:LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINThd5 boot 1 2 2 closed/syncd N/Ahd6 paging 6 12 2 open/syncd N/Ahd8 jfs2log 1 2 2 open/syncd N/Ahd4 jfs2 30 60 2 open/syncd /hd2 jfs2 10 20 2 open/syncd /usrhd9var jfs2 10 20 2 open/syncd /varhd3 jfs2 10 20 2 open/syncd /tmphd1 jfs2 4 8 2 open/syncd /homehd10opt jfs2 10 20 2 open/syncd /optlg_dumplv sysdump 6 6 1 closed/syncd N/Apagelv00 paging 6 12 2 open/syncd N/Adatelv jfs2 30 60 2 open/syncd /datebeifen看lv是否都处于syncd同步状态5. 查看pv状态;test14/#lsvg rootvgaltinst_rootvgconvgtest14/#lsvg -oconvgrootvgtest14/#lspvhdisk0 00c74bc679929a4c rootvg activehdisk1 00c74bc679bcaa9f altinst_rootvg hdisk2 00c74bc689eefd8c convg activehdisk3 none None hdisk4 none None hdisk5 00c74bc6d089a7f2 rootvg activehdisk6 none None hdisk8 none None hdisk9 none None hdisk10 none None hdisk11 none None hdisk7 none None 6. 确认好了故障盘，将故障盘在rootvg里踢出来，本次有故障的是hdisk0.注意这一步：AIX如果paging swap和dump device不同,系统不会mirror dump device,下面是系统正常情况下的dump device的信息:# lsvg -l rootvgrootvg:LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINThd5 boot 1 2 2 closed/syncd N/Ahd6 paging 244 488 2 open/syncd N/Ahd8 jfs2log 1 2 2 open/syncd N/Ahd4 jfs2 8 16 2 open/syncd /hd2 jfs2 40 80 2 open/syncd /usrhd9var jfs2 40 80 2 open/syncd /varhd3 jfs2 16 32 2 open/syncd /tmphd1 jfs2 40 80 2 open/syncd /homehd10opt jfs2 80 160 2 open/syncd /optlg_dumplv sysdump 16 16 1 open/syncd N/A查看dump设备# sysdumpdev l 查看dump设备primary /dev/lg_dumplvsecondary /dev/sysdumpnullcopy directory /var/adm/rasforced copy flag TRUEalways allow dump FALSEdump compression ON查看dump在哪块盘上# lslv -l lg_dumplvlg_dumplv:N/APV COPIES IN BAND DISTRIBUTION hdisk0 016:000:000 0% 000:000:000:000:016 目前dump device只有一个,在hdisk0上,如果hdisk0出现故障,系统可以从hdisk1启动,系统运行也不会有问题,只是没有dump device,所以如果需要更换hdisk0,需要特别注意一些别的问题,具体步骤:1) 拆除hdisk0上的镜像：unmirrorvg rootvg hdisk02） 查看unmirror后vg的状态# lsvg -l rootvgrootvg:LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINThd5 boot 1 1 1 closed/syncd N/Ahd6 paging 244 244 1 open/syncd N/Ahd8 jfs2log 1 1 1 open/syncd N/Ahd4 jfs2 8 8 1 open/syncd /hd2 jfs2 40 40 1 open/syncd /usrhd9var jfs2 40 40 1 open/syncd /varhd3 jfs2 16 16 1 open/syncd /tmphd1 jfs2 40 40 1 open/syncd /homehd10opt jfs2 80 80 1 open/syncd /optlg_dumplv sysdump 16 16 1 closed/syncd N/A3）将hdisk0在rootvg里reduce出来reducevg rootvg hdisk0将会报错:rmlv: Warning, all data belonging to logical volume lg_dumplv on physical volume hdisk0 will be destroyed.rmlv: Do you wish to continue? y(es) n(o)? 0516-016 ldeletepv: Cannot delete physical volume with allocated partitions. Use either migratepv to move the partitions or reducevg with the -d option to delete the partitions.0516-884 reducevg: Unable to remove physical volume hdisk0.遇到这种情况，我们首先应该修改dump主设备：sysdumpdev -P -p /dev/sysdumpnullprimary /dev/sysdumpnullsecondary /dev/sysdumpnullcopy directory /var/adm/rasforced copy flag TRUEalways allow dump FALSEdump compression ON然后再将hdisk0在rootvg中reduce出来smitty reducevg0516-914 rmlv: Warning, all data belonging to logical volumelg_dumplv on physical volume hdisk0 will be destroyed.rmlv: Do you wish to continue? y(es) n(o)?y-缺省删除lg_dumplv rmlv: Logical volume lg_dumplv is removed.查看dump device的状态# lsvg -l rootvgrootvg:LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINThd5 boot 1 1 1 closed/syncd N/Ahd6 paging 244 244 1 open/syncd N/Ahd8 jfs2log 1 1 1 open/syncd N/Ahd4 jfs2 8 8 1 open/syncd /hd2 jfs2 40 40 1 open/syncd /usrhd9var jfs2 40 40 1 open/syncd /varhd3 jfs2 16 16 1 open/syncd /tmphd1 jfs2 40 40 1 open/syncd /homehd10opt jfs2 80 80 1 open/syncd /opt7. 将hdisk0在rootvg中删除后就可以更换硬盘了：test14/#diag敲下回车后，故障硬盘的红灯开始闪烁，这也是确定硬盘位置的方法，以免拔错盘。将hdisk0拔下插入新的硬盘，回车，新的硬盘就可以认到了，不需要执行cfgmgr即可。接下来重新给rootvg做镜像。1） 查看认到的新的硬盘：lspv2） 将新盘加到rootvg# extendvg -f rootvg hdisk03） 查看hdisk0是否添加到rootvg中test14/#lsvg -p rootvgrootvg:PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTIONhdisk5 active 558 440 111.70.36.111.112hdisk0 active 558 434 111.64.36.111.1124） 镜像根盘：mirrorvg c 2 rootvg hdisk0查看镜像：test14/#lsvg -l rootvgrootvg:LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINThd5 boot 1 2 2 closed/syncd N/Ahd6 paging 6 12 2 open/syncd N/Ahd8 jfs2log 1 2 2 open/syncd N/Ahd4 jfs2 30 60 2 open/syncd /hd2 jfs2 10 20 2 open/syncd /usrhd9var jfs2 10 20 2 open/syncd /varhd3 jfs2 10 20 2 open/syncd /tmphd1 jfs2 4 8 2 open/syncd /homehd10opt jfs2 10 20 2 open/syncd /optlg_dumplv sysdump 6 6 1 closed/syncd N/Apagelv00 paging 6 12 2 open/syncd N/A5） 镜像成功，添加启动快到hdisk0#bosboot -ad /dev/hdisk06） 设置启动顺序# bootlist -m normal hdisk0 hdisk1 cd07） 查看启动顺序：# bootlist -o -m normalhdisk0 blv=hd5hdisk1 blv=hd5cd08） 重新创建dump lv (操作前先记录下原dump的大小)#smit lv 9) 修改主用dump device# sysdumpdev -Pp /dev/lg_dumplvprimary /dev/lg_dumplvsecondary /dev/sysdumpnullcopy directory /var/adm/rasforced copy flag TRUEalways allow dump FALSEdump compression ONlsvg -l rootvgrootvg:LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINThd5 boot 1 2 2 closed/syncd N/Ahd6 paging 244 488 2 open/syncd N/Ahd8