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Solaris 8下RAID1和RAID5的安装及恢复说明

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阅读提示: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。

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。
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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