使用卷管理工具对sunv做镜像冗余

1、云南远程v250做raidl镜像内容介绍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， 1 4 5 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：AVAILABLE DISK SELECTIONS:0. c0t0d0 /pci1d,700000/scsi4/sd0,01. c0t1d0 /pci1d,700000/scsi4/sd1,02. c0t2d0 /pci1d,700000/scsi4/sd2,03. c0t3d0 /pci1d,700000/scsi4/

2、sd3,04. c0t8d0 /pci1d,700000/scsi4/sd8,05. c0t9d0 /pci1d,700000/scsi4/sd9,06. c0t10d0 /pci1d,700000/scsi4/sda,07. c0t11d0 /pci1d,700000/scsi4/sdb,0卷 d20d20: Submirror of d2State: OkayStripe 0: (interlace: 32 blocks)Device Start Block DbaseState RelocHot Sparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d

3、0s60NoOkayYes# metadbflags first blk block counta m p luo168192/dev/dsk/c0t1d0s7a p luo /dev/dsk/c0t1d0s7ap luo/dev/dsk/c0t1d0s7ap luo/dev/dsk/c0t8d0s7ap luo/dev/dsk/c0t8d0s7ap luo8208164001682081640081928192819281928192/dev/dsk/c0t8d0s7a p luo/dev/dsk/c0t9d0s7ap luo/dev/dsk/c0t9d0s7ap luo/dev/dsk/c

4、0t9d0s7二、 备份分区表cp /etc/vfstab /etc/三、 将系统盘分区信息复制到7 号盘 , 做 metadb168208164002 号盘，将 1 号盘分区信息复制到819281928192# prtvtoc/dev/rdsk/c0t0d0s2|fmthard-s/dev/rdsk/c0t2d0s2# prtvtoc/dev/rdsk/c0t1d0s2|fmthard-s/dev/rdsk/c0t3d0s2# prtvtoc/dev/rdsk/c0t1d0s2|fmthard-s/dev/rdsk/c0t10d0s2| fmthard -s# prtvtoc /dev/rd

5、sk/c0t1d0s2/dev/rdsk/c0t11d0s2# metadb - a - f - c 3 c0t3d0s7 c0t10d0s7 c0t11d0s7四、 对数据盘做镜像，并做子镜像卷# meta init -f d2 m d20d2: Mirror is setup# metainit -f d30 1 3 c0t3d0s7 c0t10d0s7 c0t11d0s7 d30: Concat/Stripe is setup# metattach d2 d30# metastatd2: MirrorSubmirror 0: d20State:0%Submirror 1: d30Stat

6、e: Needs maintenancePass: 1Read option: roundrobin (default)Write option: parallel (default)d20: Submirror of d2State: okayStripe 0: (interlace: 32 blocks)Device Start Block Dbase State Reloc Hot Sparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYesd30: Submirror of d2State: Needs maintenanceI

7、nvoke: metasync d2Stripe 0: (interlace: 32 blocks)Device Start Block Dbase State Reloc Hot Sparec0t3d0s60NoOkayYesc0t10d0s60NoOkayYesc0t11d0s60NoOkayYes五、对系统盘做镜像# metainit -f d40 1 1c0t2d0s0Concat/Stripe is setup # metainit -f d41 1 1 c0t2d0s1Concat/Stripe is setup# metainit -f d47 1 1 c0t2d0s7Conca

8、t/Stripe is setup # metainit -f d50 1 1 c0t2d0s0Concat/Stripe is setup # metainit -f d51 1 1 c0t2d0s1Concat/Stripe is setup# metainit -f d57 1 1 c0t2d0s7Concat/Stripe is setup# Metainit- f d0 - m d40# Metainit- f di- m d41# Metainit- f d7- m d47# metaroot d0# vi/etc/vfstab 改为/dev/md/dsk/d1swap - no/

9、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/oracleufsyes# lockfs - fa# Init 6 六、追加子镜像# metattach d0 d50# metattach d1 d51# metattach d7 d57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

10、看状态 # metastat d7: MirrorSubmirror 0: d47State: OkaySubmirror 1: d57State: OkayPass: 1Read option: roundrobin (default)Write option: parallel (default)d47: Submirror of d7State: OkayStripe 0:Device Start Block Dbase State Reloc Hot Sparec0t0d0s7 0 No Okay Yes d57: Submirror of d7State: OkayStripe 0:

11、Device Start Block Dbase State Reloc Hot Sparec0t2d0s70 NoOkay Yesd1: MirrorSubmirror 0: d41State: OkaySubmirror 1: d51State: OkayPass: 1Read option: roundrobin (default)Write option: parallel (default)d41: Submirror of d1State: OkayStripe 0:Device Start Block Dbase State Reloc Hot Sparec0t0d0s1 0 N

12、o Okay Yes d51: Submirror of d1State: OkayStripe 0:Device Start Block Dbase State RelocHot Sparec0t2d0s1 0 No Okay Yes d0: MirrorSubmirror 0: d40State: OkaySubmirror 1: d50State: OkayPass: 1Read option: roundrobin (default)Write option: parallel (default)d40: Submirror of d0State: OkayStripe 0:Devic

13、e Start Block Dbase State RelocHot Sparec0t0d0s0 0 No Okay Yes d50: Submirror of d0State: OkayStripe 0:Device Start Block Dbase State RelocHot Sparec0t2d0s0 0 No Okay Yesd2: MirrorSubmirror 0: d20State: OkaySubmirror 1: d30State: OkayPass: 1Read option: roundrobin (default)Write option: parallel (de

14、fault)d20: Submirror of d2State: OkayStripe 0: (interlace: 32 blocks)Device Start Block Dbase State RelocHot Sparec0t1d0s60NoOkayYesc0t8d0s60NoOkayYesc0t9d0s60NoOkayYesd30: Submirror of d2State: OkayStripe 0: (interlace: 32 blocks)Device Start Block Dbase State RelocHot Sparec0t3d0s60NoYesc0t10d0s60NoYesc0t11d0s60NoYes六、 对更换磁盘做维护OkayOkayOkay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：boot disk2 - 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 -d c0t0d0s7 * 删除 metadbprtvtoc /dev/rdsk/c0t2d0s2|fmthard -s - /dev/rdsk/c0t0d0s2 * 给新盘创建和镜像盘一样的分区表。ini