使用卷管理工具对sun v250做镜像冗余.doc

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，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/sd0,0 1. c0t1d0 /pci1d,700000/scsi4/sd1,0 2. c0t2d0 /pci1d,700000/scsi4/sd2,0 3. c0t3d0 /pci1d,700000/scsi4/sd3,0 4. c0t8d0 /pci1d,700000/scsi4/sd8,0 5. c0t9d0 /pci1d,700000/scsi4/sd9,0 6. c0t10d0 /pci1d,700000/scsi4/sda,0 7. c0t11d0 /pci1d,700000/scsi4/sdb,0卷d20d20: Submirror of d2 State: Okay Size: 425835072 blocks (203 GB) Stripe 0: (interlace: 32 blocks) Device Start Block Dbase State Reloc Hot Spare c0t1d0s6 0 No Okay Yes c0t8d0s6 0 No Okay Yes c0t9d0s6 0 No Okay Yes # metadb flags first blk block count a m p luo 16 8192 /dev/dsk/c0t1d0s7 a p luo 8208 8192 /dev/dsk/c0t1d0s7 a p luo 16400 8192 /dev/dsk/c0t1d0s7 a p luo 16 8192 /dev/dsk/c0t8d0s7 a p luo 8208 8192 /dev/dsk/c0t8d0s7 a p luo 16400 8192 /dev/dsk/c0t8d0s7 a p luo 16 8192 /dev/dsk/c0t9d0s7 a p luo 8208 8192 /dev/dsk/c0t9d0s7 a p luo 16400 8192 /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 3 6 7号盘,做metadb# 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# prtvtoc /dev/rdsk/c0t1d0s2 | fmthard -s - /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# metainit -f d2 m d20d2: Mirror is setup# metainit -f d30 1 3 c0t3d0s7 c0t10d0s7 c0t11d0s7d30: Concat/Stripe is setup# metattach d2 d30# metastatd2: Mirror Submirror 0: d20 State:0% Submirror 1: d30 State: Needs maintenance Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 425835072 blocks (203 GB)d20: Submirror of d2 State: okay Size: 425835072 blocks (203 GB) Stripe 0: (interlace: 32 blocks) Device Start Block Dbase State Reloc Hot Spare c0t1d0s6 0 No Okay Yes c0t8d0s6 0 No Okay Yes c0t9d0s6 0 No Okay Yes d30: Submirror of d2 State: Needs maintenance Invoke: metasync d2 Size: 425835072 blocks (203 GB) Stripe 0: (interlace: 32 blocks) Device Start Block Dbase State Reloc Hot Spare c0t3d0s6 0 No Okay Yes c0t10d0s6 0 No Okay Yes c0t11d0s6 0 No Okay Yes五、 对系统盘做镜像# metainit -f d40 1 1 c0t2d0s0Concat/Stripe is setup# metainit -f d41 1 1 c0t2d0s1Concat/Stripe is setup# metainit -f d47 1 1 c0t2d0s7Concat/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 d1 m d41# Metainit f d7 m d47# metaroot d0# vi/etc/vfstab 改为. /dev/md/dsk/d1 - - swap - no -/dev/md/dsk/d0 /dev/md/rdsk/d0 / ufs 1 no -/dev/md/dsk/d7 /dev/md/rdsk/d7 /usr ufs 1 no -/dev/md/dsk/d2 /dev/md/rdsk/d2 /oracle ufs - yes - # 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看状态# metastatd7: Mirror Submirror 0: d47 State: Okay Submirror 1: d57 State: Okay Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 20484288 blocks (9.8 GB)d47: Submirror of d7 State: Okay Size: 20484288 blocks (9.8 GB) Stripe 0: Device Start Block Dbase State Reloc Hot Spare c0t0d0s7 0 No Okay Yes d57: Submirror of d7 State: Okay Size: 20484288 blocks (9.8 GB) Stripe 0: Device Start Block Dbase State Reloc Hot Spare c0t2d0s7 0 No Okay Yes d1: Mirror Submirror 0: d41 State: Okay Submirror 1: d51 State: Okay Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 12292608 blocks (5.9 GB)d41: Submirror of d1 State: Okay Size: 12292608 blocks (5.9 GB) Stripe 0: Device Start Block Dbase State Reloc Hot Spare c0t0d0s1 0 No Okay Yes d51: Submirror of d1 State: Okay Size: 12292608 blocks (5.9 GB) Stripe 0: Device Start Block Dbase State Reloc Hot Spare c0t2d0s1 0 No Okay Yes d0: Mirror Submirror 0: d40 State: Okay Submirror 1: d50 State: Okay Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 110572416 blocks (52 GB)d40: Submirror of d0 State: Okay Size: 110572416 blocks (52 GB) Stripe 0: Device Start Block Dbase State Reloc Hot Spare c0t0d0s0 0 No Okay Yes d50: Submirror of d0 State: Okay Size: 110572416 blocks (52 GB) Stripe 0: Device Start Block Dbase State Reloc Hot Spare c0t2d0s0 0 No Okay Yes d2: Mirror Submirror 0: d20 State: Okay Submirror 1: d30 State: Okay Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 425835072 blocks (203 GB)d20: Submirror of d2 State: Okay Size: 425835072 blocks (203 GB) Stripe 0: (interlace: 32 blocks) Device Start Block Dbase State Reloc Hot Spare c0t1d0s6 0 No Okay Yes c0t8d0s6 0 No Okay Yes c0t9d0s6 0 No Okay Yes d30: Submirror of d2 State: Okay Size: 425835072 blocks (203 GB) Stripe 0: (interlace: 32 blocks) Device Start Block Dbase State Reloc Hot Spare c0t3d0s6 0 No Okay Yes c0t10d0s6 0 No Okay Yes c0t11d0s6 0 No Okay Yes 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：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