Hans Müller wrote:
> raid 10 when 1 disk in the raid1 and 1 disk in the raid0 part fail then all
> data is lost. only one or more disk of the raid 0 OR of the raid 1 part can
> fail without any data lost.
You are wrong. raid 10 and 01 are different.
_____o_____
__X__ __Y__
| | | |
[A] [B] [C] [D]
RAID 10:
A+B and C+D are two raid 1(X and Y)
the union 'o' is a raid 0.
RAID 01:
A+B and C+D are two raid 0(X and Y)
the union 'o' is a raid 1.
- 10 supports a lost of one disk in every raid_1, can fail:
A and C
A and D
B and C
B and D
- 01 supports a lost of one raid_0 set, can fail:
X, (A and/or B) is the same because the strip is broken
Y, (C and/or D) is the same because the strip is broken
