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各位大虾，你们好，
偶今天碰到一个奇怪的问题，希望知道的大虾们给解释一下：
现象是这样的：
一台v240，有四块硬盘，现在需要这样做，想把c1t0d0s4,c1t0d0s5,c1t2d0s5做成一个raid0挂接到/test 目录。各分区大小如下：
c1t0d0分区表
Part Tag Flag Cylinders Size Blocks
0 root wm 0 - 824 4.00GB (825/0/0) 8395200
1 unassigned wm 825 - 5771 24.00GB (4947/0/0) 50340672
2 backup wm 0 - 14086 68.35GB (14087/0/0) 143349312
3 var wm 5772 - 6596 4.00GB (825/0/0) 8395200
4 unassigned wu 6597 - 10306 18.00GB (3710/0/0) 37752960
5 unassigned wm 10307 - 14016 18.00GB (3710/0/0) 37752960
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 14017 - 14023 34.78MB (7/0/0) 71232
c1t2d0分区表
Part Tag Flag Cylinders Size Blocks
0 unassigned wu 0 0 (0/0/0) 0
1 unassigned wu 0 0 (0/0/0) 0
2 backup wm 0 - 14086 68.35GB (14087/0/0) 143349312
3 unassigned wu 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 7 - 14086 68.32GB (14080/0/0) 143278080
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 - 6 34.78MB (7/0/0) 71232
用以下命令创建raid0,
metainit d40 1 3 /dev/rdsk/c1t0d0s4 /dev/rdsk/c1t0d0s5 /dev/rdsk/c1t2d0s5
d0s5 root#metainit d40 1 3 /dev/rdsk/c1t0d0s4 /dev/rdsk/c1t0d0s5 /dev/rdsk/c1t2
d40: Concat/Stripe is setup
iview root#metastat
d40: Concat/Stripe
Size: 113258880 blocks (54 GB)这是大小变小了？
Stripe 0: (interlace: 32 blocks)
Device Start Block Dbase Reloc
c1t0d0s4 0 No Yes
c1t0d0s5 0 No Yes
c1t2d0s5 0 No Yes
Device Relocation Information:
Device Reloc Device ID
c1t0d0 Yes id1,sd@SSEAGATE_ST373207LSUN72G_5033GG4J____________3KT3GG4J
c1t2d0 Yes id1,sd@SFUJITSU_MAP3735N_SUN72G_00Q0DNDA____
所做的raid0的磁盘空间反而变小了，请高手指点！谢谢先
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