Raid 0+1 制作

SUNfan

注：0,2做镜像,1,3做镜像

系统盘(c1t0d0)分区及镜像盘(c1t1d0)情况：
c1t0d0s0(d10) d0 c1t2d0s0(d20) /               
c1t0d0s1(d11) d1 c1t2d0s1(d21) swap                 
c1t0d0s2 　　c1t2d0s2 overlap                  
c1t0d0s3(d13) d3 c1t2d0s3(d23) /globaldevices            
c1t0d0s4(d14) d4 c1t2d0s4(d24) /var            
c1t0d0s5(d15) d5 c1t2d0s5(d25) /usr            
c1t0d0s6(d16) d6 c1t2d0s6(d26) /opt      
c1t0d0s7 　　c1t2d0s7 /metaDB   
c1t1d0s6(d18) d8  c1t3d0s6(d28)    /export/home   
c1t1d0s7(d19) d9  c1t3d0s7(d29)    /data0


系统安装完成后，使用Solarsi 9 software 2 of 2安装DiskSuite_4.2.1软件，安装路径：/cdrom/cdrom0/Solaris_9/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/c1t2d0s2
fmthard:New volume table of contents now in place
#prtvtoc /dev/rdsk/c1t1d0s2|fmthard -s - /dev/rdsk/c1t3d0s2
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 c1t2d0s7   应该是4块硬盘
#metadb
②Creating a mirror from swap
#metainit -f d11 1 1 c1t0d0s1
#metainit d21 1 1 c1t2d0s1
#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 /globaldevices
#metainit  -f d13 1 1 c1t0d0s3
#metainit d23 1 1 c1t2d0s3
#metainit d3  -m d13
#vi /etc/vfstab
/dev/dsk/c1t0d0s3 /dev/rdsk/c1t0d0s3 /var ufs 1 yes –
should be changed to:
/dev/md/dsk/d3 /dev/md/rdsk/d3 /var ufs 1 yes –
#reboot
#metattach d3 d23
④Creating a mirror from /var
#metainit  -f d14 1 1 c1t0d0s4
#metainit d24 1 1 c1t2d0s4
#metainit d4  -m d14
#vi /etc/vfstab
/dev/dsk/c1t0d0s4 /dev/rdsk/c1t0d0s4 /var ufs 1 yes –
should be changed to:
/dev/md/dsk/d4 /dev/md/rdsk/d4 /var ufs 1 yes –
#reboot
#metattach d4 d24
⑤Creating a mirror from /usr
#metainit -f d15 1 1 c1t0d0s5
#metainit d25 1 1 c1t2d0s5
#metainit d5 -m d15
#vi /etc/vfstab
/dev/dsk/c1t0d0s5 /dev/rdsk/c1t0d0s5 / usr ufs 1 yes –
should be changed to:
/dev/md/dsk/d5 /dev/md/rdsk/d5 / usr ufs 1 yes –
#reboot
#metattach d5 d25
⑥Creating a mirror from /opt
#metainit -f d16 1 1 c1t0d0s6
#metainit d26 1 1 c1t2d0s6
#metainit d6 -m d16
#vi /etc/vfstab
/dev/dsk/c1t0d0s6 /dev/rdsk/c1t0d0s6 /opt ufs 1 yes –
should be changed to:
/dev/md/dsk/d6 /dev/md/rdsk/d6 /opt ufs 1 yes –
#reboot
#metattach d6 d26

(7)Creating a mirror from /export/home
#metainit -f d18 1 1 c1t1d0s6
#metainit d28 1 1 c1t3d0s6
#metainit d8 -m d18
#vi /etc/vfstab
/dev/dsk/c1t1d0s6 /dev/rdsk/c1t1d0s6 /export/home ufs 1 yes –
should be changed to:
/dev/md/dsk/d8 /dev/md/rdsk/d8 /export/home ufs 1 yes –
#reboot
#metattach d8 d28

(8)Creating a mirror from /data0
#metainit -f d19 1 1 c1t1d0s7
#metainit d29 1 1 c1t3d0s7
#metainit d9 -m d19
#vi /etc/vfstab
/dev/dsk/c1t1d0s7 /dev/rdsk/c1t1d0s7 /data0 ufs 1 yes –
should be changed to:
/dev/md/dsk/d9 /dev/md/rdsk/d9 /data0 ufs 1 yes –
#reboot
#metattach d9 d29


(9)Creating a mirror from /
#metainit -f d10 1 1 c1t0d0s0
#metainit d20 1 1 c1t2d0s0
#metainit d0 -m d10
#metaroot d0
#lockfs -fa
#reboot
#metattach d0 d20

开始做镜像！做好之后，修改eeprom

#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）
disk3                    /pci@1f,700000/scsi@2/disk@3,0
disk2                    /pci@1f,700000/scsi@2/disk@2,0
disk1                    /pci@1f,700000/scsi@2/disk@1,0
disk0                    /pci@1f,700000/scsi@2/disk@0,0

ok nvalias rootdisk /pci@1f,700000/scsi@2/disk@0,0
ok nvalias mirrdisk /pci@1f,700000/scsi@2/disk@2,0

ok setenv boot-device rootdisk mirrdisk
ok sync 同步数据，重启服务器


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/2027/showart_332971.html