Solaris 8下RAID1和RAID5的安装及恢复[1]

发表于:2015-08-12 15:35 阅读:

  Disk分布情况:
  
0:c1t0d0
  
1:c1t1d0
  
2:c1t2d0
  
3:c1t3d0
  
4:c1t4d0
  5:c1t5d0

  注:0,1做镜像;2345RAID5

  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:

  
先生成replicas,这是DiskSuite内部用的。
  
#metadb –a –f –c 3 c1t0d0s7 c1t1d0s7
  
#metadb
  
Creating 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
  
Creating 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
  
Creating 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
  
Creating 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
  
Creating 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
  
Creating 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)

Solaris 8RAID1RAID5的安装及恢复[2]

 进入社区

  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
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
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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