RAID 0+1 - using 4 drives, two pairs are striped, and the results mirror each other. In this configuration, when one of the drives fails, it actually breaks the stipe that it belongs to, which in turn breaks the mirror... at this point, all you have is 1 stipe. At this point, if one drive fails, you are in trouble. To recover, the offending drive is removed, and the entire stipe needs to be resync'd.
RAID 1+0 - using 4 drives, two pairs are mirrored, and the results are used to create a single stripe. In this configuration, when one of the drives fails, it only breaks one mirror, without affecting the stripe... at this point, only 1/2 of the stipe is mirrored... but if a 2nd drive failure were to occur, it has a 2-in-3 chance of occuring on the last mirror... if it does, you are still OK. To recover, the offending drive is removed, and only the mirror of 1/2 the stripe needs to be resync'd.作者: redfox 时间: 2003-09-16 12:49 标题: raid 0+1和1+0的区别 其实就是先条带后镜像和先镜像后条带的的区别。作者: 科学球 时间: 2003-09-16 12:58 标题: raid 0+1和1+0的区别 但我认为0+1比1+0好。作者: redfox 时间: 2003-09-16 17:08 标题: raid 0+1和1+0的区别 [quote]原帖由 "科学球"]但我认为0+1比1+0好。[/quote 发表：
why?作者: zhaoshan 时间: 2003-09-16 17:24 标题: raid 0+1和1+0的区别 rad0+1 要比 rad1+0 更有可靠性 ， 若其中一块损坏，前者更能保证数据不易丢失。作者: yutian 时间: 2003-09-16 17:45 标题: raid 0+1和1+0的区别 提高一个东东是要牺牲一点的，就看你舍不舍得的作者: xpkey 时间: 2003-09-17 08:50 标题: raid 0+1和1+0的区别 RAID 10和RAID 0+1的区别
LinuxAid.com.cn 01-07-06 15:52 1172p jOe
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RAID 10和RAID0+1是完全不同的两个实现和设置方法
现在我举两个例子，分别是单个盘阵2块disk和 3块disk的情况
(一)单个盘阵2块disk
RAID 10 (先作0,然后作1)
A
----]- RAID0(array 1)
B
---------------------]- RAID 1(array final)
C
----]- RAID0(array 2)
D
RAID 0+1(先作1,然后作0）
A
---]- RAID1(array 1)
B
--------------------]- RAID 0(array final)
C
---]- RAID1(array 2)
D