Re: Status of Linux MD RAID 10? (Or: Why is it still marked experimental?)

[Neil Brown <neilb@suse.de>]

On Thu, 22 Apr 2010 11:17:51 +0000
Eric MSP Veith <eveith@wwweb-library.net> wrote:

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> Hello list,
> 
> I'm using Linux' MD feature with two RAID 1 arrays and am pretty happy with it.
> Since I'm planning to change my disk layout, I'd like to switch to RAID level
> 10. But when configuring current 2.6.33 stable kernel, I found RAID 10 marked
> experimental.
> 
> Why is this that case?

I just never got around to removing it.
I will submit a patch for 2.6.35 to remove the EXPERIMENTAL designation (it
is too late to bother for 2.6.34).

Thanks,
NeilBrown

> 
> I normally do not tend to ignore the "EXPERIMENTAL" warning; in fact, my
> current "home server" kernel does not include any single item marked as
> experimental.
> 
> I've googled around before bugging the ML and found several others asking
> questions along the line "can I use MD RAID 10 right now?", with answers like
> "it works for me so far." I, on the contrary, would like to know what issues
> prevent RAID 10 from getting the "experimental" KConfig tag removed.
> 
> TIA!
> 
>             Eric
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