软raid5构建过徎：
环境：现有146G硬盘4块，一块已经安装本地系统，后加3块做raid5.
命令过徎：
root@wxserver-ftp # format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c1t0d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@0,0
1. c1t1d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@1,0
2. c1t2d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@2,0
3. c1t3d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@3,0
Specify disk (enter its number): 1
根据硬盘的ID，输入1-4，调整硬盘的参数。0为本地硬盘，只有1-3可以调整 。
输入2，并回车，再输入partition回车、输入print回车，相看当前硬盘的分区列表。
一般s6调置为最大的容量分区，s7分100mb,存储硬盘的raid信息。
（注意：先建大容量分区，再建100mb分区，并且Cylinders不能重合，应该是连续的。可以看到下面的
硬盘的最大Cylinders是17830,每块硬盘的分区列表应该相同）
如果提示错误： (this disk may be in use by an application that has modified the fdisk table .Ensure that this disk is not currently in use before proceeding to use fdisk )
在disk命令下，执行fdisk回车，再重新分区即可。
PARTITION MENU:
0 - change `0' partition
1 - change `1' partition
2 - change `2' partition
3 - change `3' partition
4 - change `4' partition
5 - change `5' partition
6 - change `6' partition
7 - change `7' partition
select - select a predefined table
modify - modify a predefined partition table
name - name the current table
print - display the current table
label - write partition map and label to the disk
! - execute , then return
quit
partition> p
Current partition table (original):
Total disk cylinders available: 17830 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 unassigned wm 0 0 (0/0/0) 0
1 unassigned wm 0 0 (0/0/0) 0
2 unassigned wu 0 0 (0/0/0) 0
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 - 17492 134.00GB (17493/0/0) 281025045
7 unassigned wm 17493 - 17505 101.98MB (13/0/0) 208845
8 boot wu 0 - 0 7.84MB (1/0/0) 16065
9 unassigned wm 0 0 (0/0/0) 0
在每块硬盘的分区执行完成后，输入label命令，保存已经设置好的分区。
以前步骤，硬盘分区构建完成，以下构建raid.
2.建立metadb信息（用S6 100MB空间存储raid信息）
metadb --查看当前的raid信息情况
metadb -a -f -c 3 c1t1d0s6 c1t2d0s6 c1t3d0s6
metadb -d -f -c 3 c1t1d0s6 c1t2d0s6 c1t3d0s6 --删除raid信息
metastat --查看当前的raid硬盘情况，如果有删除掉。
metainit -f d10 -r c1t1d0s7 c1t2d0s7 c1t3d0s7 --注意是s7,也就是最大空量的硬盘分区
metastat --当建立好的raid5，硬盘完成同步后，进度条达到100%后，才可以创建文件系统
newfs /dev/md/dsk/d10 --在d10上创建文件系统
vi /etc/vfstab
/dev/md/dsk/d10 /dev/md/rdsk/d10 /raid5d10 ufs 2 yes - --创建开机自动挂载
手动挂载命令：mkdir /raid5d10
mount /dev/md/dsk/d10 /raid5d10
至此，完成软raid5的构建。
------------以下是做的时候截取的一段日志，记录以备后用-----------------
root@wxserver-ftp # format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c1t0d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@0,0
1. c1t1d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@1,0
2. c1t2d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@2,0
3. c1t3d0
/pci@0,0/pci10de,375@f/pci108e,286@0/disk@3,0
Specify disk (enter its number): 1
selecting c1t1d0
[disk formatted]
/dev/dsk/c1t1d0s6 is part of SVM volume raid:d10. Please see metaclear(1M).
/dev/dsk/c1t1d0s7 contains an SVM mdb. Please see metadb(1M).
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
fdisk - run the fdisk program
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
! - execute , then return
quit
format> p
PARTITION MENU:
0 - change `0' partition
1 - change `1' partition
2 - change `2' partition
3 - change `3' partition
4 - change `4' partition
5 - change `5' partition
6 - change `6' partition
7 - change `7' partition
select - select a predefined table
modify - modify a predefined partition table
name - name the current table
print - display the current table
label - write partition map and label to the disk
! - execute , then return
quit
partition> p
Current partition table (original):
Total disk cylinders available: 17830 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 unassigned wm 0 0 (0/0/0) 0
1 unassigned wm 0 0 (0/0/0) 0
2 unassigned wu 0 0 (0/0/0) 0
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 - 17492 134.00GB (17493/0/0) 281025045
7 unassigned wm 17493 - 17505 101.98MB (13/0/0) 208845
8 boot wu 0 - 0 7.84MB (1/0/0) 16065
9 unassigned wm 0 0 (0/0/0) 0
partition> exit
`exit' is not expected.
partition> quit
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
fdisk - run the fdisk program
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
! - execute , then return
quit
format> quit
root@wxserver-ftp # metadb
flags first blk block count
a m pc luo 16 8192 /dev/dsk/c1t1d0s7
a pc luo 8208 8192 /dev/dsk/c1t1d0s7
a pc luo 16400 8192 /dev/dsk/c1t1d0s7
a pc luo 16 8192 /dev/dsk/c1t2d0s7
a pc luo 8208 8192 /dev/dsk/c1t2d0s7
a pc luo 16400 8192 /dev/dsk/c1t2d0s7
a pc luo 16 8192 /dev/dsk/c1t3d0s7
a pc luo 8208 8192 /dev/dsk/c1t3d0s7
a pc luo 16400 8192 /dev/dsk/c1t3d0s7
root@wxserver-ftp # metainit
usage: metainit [-s setname] [-n] [-f] concat/stripe numstripes
width component... [-i interlace]
[width component... [-i interlace]] [-h hotspare_pool]
metainit [-s setname] [-n] [-f] mirror -m submirror...
[read_options] [write_options] [pass_num]
metainit [-s setname] [-n] [-f] RAID -r component...
[-i interlace] [-h hotspare_pool]
[-k] [-o original_column_count]
metainit [-s setname] [-n] [-f] hotspare_pool [hotspare...]
metainit [-s setname] [-n] [-f] softpart -p [-A alignment]
[-e] device size|all
metainit [-s setname] [-n] [-f] md.tab_entry
metainit [-s setname] [-n] [-f] -a
metainit -r
root@wxserver-ftp # metainit -r
root@wxserver-ftp # metastat
d10: RAID
State: Okay
Interlace: 32 blocks
Size: 562001895 blocks (267 GB)
Original device:
Size: 562017280 blocks (267 GB)
Device Start Block Dbase State Reloc Hot Spare
c1t1d0s6 16395 No Okay Yes
c1t2d0s6 16395 No Okay Yes
c1t3d0s6 16395 No Okay Yes
Device Relocation Information:
Device Reloc Device ID
c1t1d0 Yes id1,sd@TSun_____STK_RAID_INT____0A326EB1
c1t2d0 Yes id1,sd@TSun_____STK_RAID_INT____823E6EB1
c1t3d0 Yes id1,sd@TSun_____STK_RAID_INT____99466EB1
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