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标题: 单硬盘模拟各种RAID的做法 [打印本页]

作者: sunyeait 时间: 2005-05-09 12:49
标题: 单硬盘模拟各种RAID的做法

单硬盘模拟各种raid的做法
SunOS 5.8
login: root
Password:
Last login: Fri Apr  1 17:25:16 from 192.168.1.10
Sun Microsystems Inc. SunOS 5.8    Generic Patch February 2004
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
   0. c0t0d0 ST
      /pci@1f,0/ide@d/dad@0,0
Specify disk (enter its number):
创建metadb数据库
# metadb -afc 3 c0t0d0s7
# bash
创建串联
bash-2.03# metainit d10 3 1 c0t0d0s4 1 c0t0d0s5 1 c0t0d0s6
d10: Concat/Stripe is setup
bash-2.03# metastat
d10: Concat/Stripe
Size: 5654400 blocks
Stripe 0:
      Device             Start Block  Dbase
      c0t0d0s4                0    No
Stripe 1:
      Device             Start Block  Dbase
      c0t0d0s5                0    No
Stripe 2:
      Device             Start Block  Dbase
      c0t0d0s6                0    No
bash-2.03# metadb
      flags          first blk    block count
   a       u       16             1034          /dev/dsk/c0t0d0s7
   a       u       1050          1034          /dev/dsk/c0t0d0s7
   a       u       2084          1034          /dev/dsk/c0t0d0s7
bash-2.03# metaclear -a
d10: Concat/Stripe is cleared
bash-2.03# metastat
创建条带
bash-2.03# metainit d10 1 3 c0t0d0s4 c0t0d0s5 c0t0d0s6
d10: Concat/Stripe is setup
bash-2.03# metastat
d10: Concat/Stripe
Size: 5654400 blocks
Stripe 0: (interlace: 32 blocks)
      Device             Start Block  Dbase
      c0t0d0s4                0    No
      c0t0d0s5                0    No
      c0t0d0s6                0    No
bash-2.03# metaclear -a
d10: Concat/Stripe is cleared
做Mirror
bash-2.03# metainit d2 1 1 c0t0d0s4
d2: Concat/Stripe is setup
bash-2.03# metainit d3 1 1 c0t0d0s5
d3: Concat/Stripe is setup
bash-2.03# metainit d1 -m d2
d1: Mirror is setup
bash-2.03# metattach d1 d3
d1: submirror d3 is attached
bash-2.03# metastat
d1: Mirror
Submirror 0: d2
   State: Okay
Submirror 1: d3
   State: Resyncing
Resync in progress: 0 % done
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 1884800 blocks
d2: Submirror of d1
State: Okay
Size: 1884800 blocks
Stripe 0:
      Device             Start Block  Dbase State       Hot Spare
      c0t0d0s4                0    No Okay
d3: Submirror of d1
State: Resyncing
Size: 1884800 blocks
Stripe 0:
      Device             Start Block  Dbase State       Hot Spare
      c0t0d0s5                0    No Okay
bash-2.03# metadetach d1 d3
d1: submirror d3 is detached
bash-2.03# metaclear -a
d1: Mirror is cleared
d2: Concat/Stripe is cleared
d3: Concat/Stripe is cleared
bash-2.03# metastat
做RAID5
bash-2.03# metainit d10 -r c0t0d0s4 c0t0d0s5 c0t0d0s6 -i 20k
d10: RAID is setup
bash-2.03#
bash-2.03# metastat
d10: RAID
State: Initializing
Initialization in progress: 6% done
Interlace: 40 blocks
Size: 3764888 blocks
Original device:
Size: 3768720 blocks
      Device             Start Block  Dbase State       Hot Spare
      c0t0d0s4                410    No Initializing
      c0t0d0s5                410    No Initializing
      c0t0d0s6                410    No Initializing
bash-2.03# metaclear -a
d10: RAID is cleared
做Concatenated Stripe
bash-2.03# metainit d1 2 1 c0t0d0s4 -i 16k 2 c0t0d0s5 c0t0d0s6 -i 32k
d1: Concat/Stripe is setup
bash-2.03# metastat
d1: Concat/Stripe
Size: 5654400 blocks
Stripe 0:
      Device             Start Block  Dbase
      c0t0d0s4                0    No
Stripe 1: (interlace: 64 blocks)
      Device             Start Block  Dbase
      c0t0d0s5                0    No
      c0t0d0s6                0    No

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