Anyone interested in using UDMA-66 drives into a RAID array with any degree
of performance may be interested to know this. I wrote to a developer of
UDMA support for Linux, and learned the following:
>> I am going to be installing some UDMA-66 drives in a Linux RAID5 array.
>> However, Linux-RAID is broken in the latest kernels. Do you know where I
>> can find a version of "2.2.10.uniform-ide-6.19.nov.patch.gz" (posted at
>> http://www.dyer.vanderbilt.edu/server/udma/ ) for the 2.2.6 kernel?
>
>It does not exist.
>There was a golf/hotel version for 2.2.6, but november patch will not go
>backwards. There is a major addition/changes at the 2.2.8/2.2.9 that
>breaks the backwards compatibility.
>
>However..............
>
>Since everyone is pushing me to back port to 2.2.5, I am looking at the
>size of the task.
>
>You need to understand where the branches go in the source tree.
>
>2.2.8 -+-> 2.2.9 -> 2.2.10
> |
> + 2.3.0 ---- 2.3.1
> 2.3.2
> 2.3.3
> 2.3.4
> 2.3.5
> 2.3.6
> 2.3.7 -- 2.3.8
> 2.3.9 ----------- 2.3.10-1
>
>The dash represent orders of magnitude in change.
>The will be about two lines of dashes between 2.3.10 and 2.3.11.
>
>To be honest, if you could move forward in kernels you would fix a few
>things that needed to be addressed.
When does it look like there will be a RAID fix for the 2.2.10 kernel?
Otherwise, is anyone aware of another way to get UDMA/66 and RAID together?
Sincerely,
-Carlos
