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Solaris 8 下RAID1和RAID5的安装及恢复(转)

原创 Linux操作系统 作者:ilg 时间:2019-06-11 15:36:06 0 删除 编辑
Solaris 8 下RAID1和RAID5的安装及恢复(转)

  本文档以SUN Fire V880 Server(6*73GB Dsik)为例讲解在Solarsi8下使用命令行的方式安装及维护RAID1和RAID5。本文档内容都经本人实践验证过,但对于不同机型仅供参考,谢谢支持!

  Disk分布情况:

  0:c1t0d0

  1:c1t1d0

  2:c1t2d0

  3:c1t3d0

  4:c1t4d0

  5:c1t5d0

  注:0,1做镜像;2,3,4,5做RAID5

  系统盘(c1t0d0)分区及镜像盘(c1t1d0)情况:

  c1t0d0s0(d10) d0 c1t1d0s0(d20) / 1024M

  c1t0d0s1(d11) d1 c1t1d0s1(d21) swap 8192M

  c1t0d0s2   c1t1d0s2 overlap 69999M

  c1t0d0s3(d13) d3 c1t1d0s3(d23) /usr 4096M

  c1t0d0s4(d14) d4 c1t1d0s4(d24) /opt 10240M

  c1t0d0s5(d15) d5 c1t1d0s5(d25) /var 2048M

  c1t0d0s6(d16) d6 c1t1d0s6(d26) /home free

  c1t0d0s7   c1t1d0s7 /metaDB 30M

  系统安装完成后,使用Solarsi8 software 2 of 2安装DiskSuite_4.2.1软件,安装路径:/cdrom/cdrom0/Solaris_8/EA/installer & 选择默认安装就可以。

  用root用户登陆,运行以下命令:

  #prtvtoc /dev/rdsk/c1t0d0s2|fmthard –s – /dev/rdsk/c1t1d0s2

  fmthard:New volume table of contents now in place

  上面命令将第二块硬盘(c1t1d0)的文件分区表调整为和引导盘一致。

  #umount /metaDB

  #rm –r /metaDB

  #vi /etc/vfstab

  将下面这行注释掉或删除,如下:

  #/dev/dsk/c1t0d0s7 /dev/rdsk/c1t0d0s7 /metaDB ufs 1 yes –

  一、RAID1

  对各个分区逐一作镜像:

  ①先生成replicas,这是DiskSuite内部用的。

  #metadb –a –f –c 3 c1t0d0s7 c1t1d0s7

  #metadb

  ②Creating a mirror from swap

  #metainit –f d11 1 1 c1t0d0s1

  #metainit d21 1 1 c1t1t0s1

  #metainit d1 –m d11

  #vi /etc/vfstab

  /dev/dsk/c1t0d0s1 - - swap – no –

  should be changed to:

  /dev/md/dsk/d1 - - swap – no -

  #reboot

  #metattach d1 d21

  ③Creating a mirror from /usr

  #metainit –f d13 1 1 c1t0d0s3

  #metainit d23 1 1 c1t1t0s3

  #metainit d3 –m d13

  #vi /etc/vfstab

  /dev/dsk/c1t0d0s3 /dev/rdsk/c1t0d0s3 /usr ufs 1 yes –

  should be changed to:

  /dev/md/dsk/d3 /dev/md/rdsk/d3 /usr ufs 1 yes –

  #reboot

  #metattach d3 d23

  ④Creating a mirror from /opt

  #metainit –f d14 1 1 c1t0d0s4

  #metainit d24 1 1 c1t1t0s4

  #metainit d4 –m d14

  #vi /etc/vfstab

  /dev/dsk/c1t0d0s4 /dev/rdsk/c1t0d0s4 /opt ufs 1 yes –

  should be changed to:

  /dev/md/dsk/d4 /dev/md/rdsk/d4 /opt ufs 1 yes –

  #reboot

  #metattach d4 d24

  ⑤Creating a mirror from /var

  #metainit –f d15 1 1 c1t0d0s5

  #metainit d25 1 1 c1t1t0s5

  #metainit d5 –m d15

  #vi /etc/vfstab

  /dev/dsk/c1t0d0s5 /dev/rdsk/c1t0d0s5 /var ufs 1 yes –

  should be changed to:

  /dev/md/dsk/d5 /dev/md/rdsk/d5 /var ufs 1 yes –

  #reboot

  #metattach d5 d25

  ⑥Creating a mirror from /home

  #metainit –f d16 1 1 c1t0d0s6

  #metainit d26 1 1 c1t1t0s6

  #metainit d6 –m d16

  #vi /etc/vfstab

  /dev/dsk/c1t0d0s6 /dev/rdsk/c1t0d0s6 /home ufs 1 yes –

  should be changed to:

  /dev/md/dsk/d6 /dev/md/rdsk/d6 /home ufs 1 yes –

  #reboot

  #metattach d6 d26

  ⑦Creating a mirror from /

  #metainit –f d10 1 1 c1t0d0s0

  #metainit d20 1 1 c1t1t0s0

  #metainit d0 –m d10

  #metaroot d0

  #lockfs –fa

  #reboot

  #metattach d0 d20

  #metastat (检查镜像进度)

  镜像完成后,还需作如下操作:

  修改EEPROM

  ok devalias(察看启动设备)

  ok nvalias rootdisk /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@0,0

  ok nvalias mirrdisk /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@1,0

  ok setenv boot-device rootdisk mirrdisk

  eeprom命令:

  boot-device=rootdisk mirrdisk

  boot-device=rootdisk mirrdisk

  use-nvramrc?=true

  nvramrc=devalias mirrdisk /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@1,0

  devalias rootdisk /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@0,0

  #ls -l c1t0d0s0

  lrwxrwxrwx 1 root root 70 1月 2 10:45 c1t0d0s0 -> ../../devices/pci@8,600000/SUNW,qlc@4/fp@0,0/ssd@w21000000870e80e7,0:a

  对应:/pci@8,600000/SUNW,qlc@4/fp@0,0/disk@0,0

  root@voiplnjvr4 # ls -l c1t1d0s0

  lrwxrwxrwx 1 root root 70 1月 2 10:45 c1t1d0s0 -> ../../devices/pci@8,600000/SUNW,qlc@4/fp@0,0/ssd@w21000000870fb287,0:a

  对应:/pci@8,600000/SUNW,qlc@4/fp@0,0/disk@1,0

  测试:

  ok boot rootdisk 系统启动正常。

  ok boot mirrordisk 系统启动正常。

  假如c1t0d0盘坏掉,则停机更换硬盘后需做恢复工作,如下;

  ok boot mirrordisk -s

  #metadb -d c1t0d0s7

  #prtvtoc /dev/rdsk/c1t1d0s2|fmthard –s – /dev/rdsk/c1t0d0s2

  #metadb –a –f –c 3 c1t0d0s7

  #halt

  ok boot mirrordisk

  #metareplace -e d0 c1t0d0s0

  d0: device c1t0d0s0 is enabled

  #metareplace -e d1 c1t0d0s1

  d1: device c1t0d0s1 is enabled

  #metareplace -e d3 c1t0d0s3

  d3: device c1t0d0s3 is enabled

  #metareplace -e d4 c1t0d0s4

  d4: device c1t0d0s4 is enabled

  #metareplace -e d5 c1t0d0s5

  d5: device c1t0d0s5 is enabled

  #metareplace -e d6 c1t0d0s6

  d6: device c1t0d0s6 is enabled

  #metastat (检查镜像恢复进度)

  二、RAID5

  #metainit d55 –r c1t2d0s2 c1t3d0s2 c1t4d0s2 c1t5d0s2

  #metastat d55 (检查RAID5的进度)

  作完后reboot

  #newfs /dev/md/rdsk/d55

  #mkdir /raid5

  #vi /etc/vfstab

  添加一行:

  /dev/md/dsk/d55 /dev/md/rdsk/d55 /raid5 ufs 2 yes –

  #reboot

  RAID5坏掉一个盘的恢复方法:

  例c1t4d0盘坏掉,更换坏硬盘后作如下工作:

  ok boot -r

  #metareplace –e d55 c1t4d0s2

  #metastat d55

  卸去RAID5的方法:

  #umount /raid5

  #metaclear d55

  #vi /etc/vfstab

  注释此行:

  #/dev/md/dsk/d55 /dev/md/rdsk/d55 /raid5 ufs 2 yes

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