使用卷管理工具对sunv做镜像冗余

云南远程v250做raid1 镜像一、

内容介绍V250单机对系统盘和数据盘做镜像冗余，原来做了有四张盘，

0号为系统盘，

145为数据盘，并做了条带为

/dev/md/dsk/d20,

要添加四块盘，一块做系统盘镜像，另外三块做卷 d20的镜像d30。8盘磁盘名称：AVAILABLEDISKSELECTIONS:c0t0d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@0,0c0t1d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@1,0c0t2d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@2,0c0t3d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@3,0c0t8d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@8,0c0t9d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@9,0c0t10d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@a,0c0t11d0<SUN72Gcyl14087alt2hd24sec424>/pci@1d,700000/scsi@4/sd@b,0卷d20d20:Submirrorofd2State:OkaySize:425835072blocks(203GB)Stripe0:(interlace:32blocks)DeviceStartBlockDbaseStateRelocHotSparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYes#metadbflagsfirstblkblockcountampluo168192/dev/dsk/c0t1d0s7apluo82088192/dev/dsk/c0t1d0s7apluo164008192/dev/dsk/c0t1d0s7apluo168192/dev/dsk/c0t8d0s7apluo82088192/dev/dsk/c0t8d0s7apluo164008192/dev/dsk/c0t8d0s7apluo168192/dev/dsk/c0t9d0s7apluo82088192/dev/dsk/c0t9d0s7apluo164008192/dev/dsk/c0t9d0s7二、 备份分区表cp/etc/vfstab/etc/vfstab.bak三、将系统盘分区信息复制到2号盘，将1号盘分区信息复制到367号盘,,做metadbprtvtoc/dev/rdsk/c0t0d0s2|fmthard-s-/dev/rdsk/c0t2d0s2prtvtoc/dev/rdsk/c0t1d0s2|fmthard-s-/dev/rdsk/c0t3d0s2prtvtoc/dev/rdsk/c0t1d0s2|fmthard-s-/dev/rdsk/c0t10d0s2prtvtoc/dev/rdsk/c0t1d0s2|fmthard-s-/dev/rdsk/c0t11d0s2metadb–a–f–c3c0t3d0s7c0t10d0s7c0t11d0s7四、 对数据盘做镜像，并做子镜像卷#metainit-fd2 –md20d2:Mirrorissetupmetainit-fd3013c0t3d0s7c0t10d0s7c0t11d0s7d30:Concat/Stripeissetupmetattachd2d30metastatd2:MirrorSubmirror0:d20State:0%Submirror1:d30State:NeedsmaintenancePass:1Readoption:roundrobin(default)Writeoption:parallel(default)Size:425835072blocks(203GB)d20:Submirrorofd2State:okaySize:425835072blocks(203GB)Stripe0:(interlace:32blocks)Device StartBlockDbase StateRelocHotSparec0t1d0s6 0 No Okay Yesc0t8d0s6 0 No Okay Yesc0t9d0s6 0 No Okay Yesd30:Submirrorofd2State:NeedsmaintenanceInvoke:metasyncd2Size:425835072blocks(203GB)Stripe0:(interlace:32blocks)Device StartBlockDbase StateRelocHotSparec0t3d0s6 0 No Okay Yesc0t10d0s6 0 No Okay Yesc0t11d0s6 0 No Okay Yes五、 对系统盘做镜像metainit-fd4011c0t2d0s0Concat/Stripeissetupmetainit-fd4111c0t2d0s1Concat/Stripeissetupmetainit-fd4711c0t2d0s7Concat/Stripeissetupmetainit-fd5011c0t2d0s0Concat/Stripeissetupmetainit-fd5111c0t2d0s1Concat/Stripeissetupmetainit-fd5711c0t2d0s7Concat/Stripeissetup#Metainit

–fd0

–md40#Metainit

–fd1

–md41#Metainit–fd7–md47#metarootd0#vi/etc/vfstab改为.../dev/md/dsk/d1--swap-no-/dev/md/dsk/d0/dev/md/rdsk/d0/ufs1no-/dev/md/dsk/d7/dev/md/rdsk/d7/usrufs1no-/dev/md/dsk/d2/dev/md/rdsk/d2/oracleufs-yes-lockfs–faInit6六、追加子镜像metattachd0d50metattachd1d51metattachd7d57生成可自动切换的能启动镜像磁盘installboot /usr/platform/'uname -i'/lib/fs/ufs/bootblk/dev/rdsk/c1t4d0s0等待镜像同步完成查看状态#metastatd7:MirrorSubmirror0:d47State:OkaySubmirror1:d57State:OkayPass:1Readoption:roundrobin(default)Writeoption:parallel(default)Size:20484288blocks(9.8GB)d47:Submirrorofd7State:OkaySize:20484288blocks(9.8GB)Stripe0:Device StartBlockDbasec0t0d0s7 0 No

StateRelocHotSpareOkay YesDevice StartBlockDbasec0t2d0s7 0 Nod1:Mirror

StateRelocHotSpareOkay YesSubmirror0:d41State:OkaySubmirror1:d51State:OkayPass:1Readoption:roundrobin(default)Writeoption:parallel(default)Size:12292608blocks(5.9GB)d41:Submirrorofd1State:OkaySize:12292608blocks(5.9GB)Stripe0:Device StartBlockDbasec0t0d0s1 0 No

StateRelocHotSpareOkay YesDevice StartBlockDbasec0t2d0s1 0 Nod0:Mirror

StateRelocHotSpareOkay YesSubmirror0:d40State:OkaySubmirror1:d50State:OkayPass:1Readoption:roundrobin(default)Writeoption:parallel(default)Size:110572416blocks(52GB)d40:Submirrorofd0State:OkaySize:110572416blocks(52GB)Stripe0:Device StartBlockDbasec0t0d0s0 0 No

StateRelocHotSpareOkay YesDevice StartBlockDbasec0t2d0s0 0 Nod2:Mirror

StateRelocHotSpareOkay YesSubmirror0:d20State:OkaySubmirror1:d30State:OkayPass:1Readoption:roundrobin(default)Writeoption:parallel(default)Size:425835072blocks(203GB)d20:Submirrorofd2State:OkaySize:425835072blocks(203GB)Stripe0:(interlace:32blocks)DeviceStartBlockDbaseStateRelocHotSparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYesd30:Submirrorofd2State:OkaySize:425835072blocks(203GB)Stripe0:(interlace:32blocks)DeviceStartBlockDbaseStateRelocHotSparec0t3d0s60NoOkayYesc0t10d0s60NoOkayYesc0t11d0s60NoOkayYes六、 对更换磁盘做维护假如c0t0d0坏掉，停机，取出坏磁盘。在ok下用镜像的盘启动到单用户模式下：bootdisk2 –s *2号盘为系统镜像盘系统启动后插入新磁盘（ format格式化）执行：metadb-dc0t0d0s7* 删除metadbprtvtoc/dev/rdsk/c0t2d0s2|fmthard-s- /dev/rdsk/c