RE: new superblock and raid10 support in mdadm

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On Wednesday December 22, bmoon@xxxxxxxxxxxxxxxxxxxxxx wrote:
> Hello again,
> 
> I will re-iterate my question for raid10 or raid01.
> 1.  Is raid10.c in ONLY linux2.6.xx? no support for 2.4.xx?

2.6 only

> 2.  Does raid10.c support for RAID10 only? Or for both raid10 and
> raid01?

raid10.c supports an arrangement where data is both striped and
mirrored. 
The difference between raid1+0 and raid0+1 (which also both stripe and
mirror) is not relevant when the striping and mirroring is done in the
one module.


> 3.  we can build raid10 or raid01 on linux2.4.xx without raid10.c code.
>     What issues or bugs does this code take care of?

raid10.c provides more flexibility and simpler management.

> 4.  What rev of mdadm should be used for raid10? Mdadm1.7 or greater?
> 

Should work with 1.7.0, but would recommend upgrading to 1.8.0 anyway
(NOT 1.8.1).

NeilBrown
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