Re: RAID Level 6

[Fredrik Pettai <pettai%nordu.net@localhost>]

On 18 Feb 2015, at 15:19 , David Brownlee <abs%absd.org@localhost> wrote:

> On 17 February 2015 at 18:30, BERTRAND Joël <joel.bertrand%systella.fr@localhost> wrote:
>> Greg Oster a écrit :
>> 
>>> On Sat, 14 Feb 2015 18:40:03 +0100
>>> BERTRAND Joël <joel.bertrand%systella.fr@localhost> wrote:
>>> 
>>>>        Hello,
>>>> 
>>>>        I've seen that sys/dev/raidframe contains some code for raid
>>>> level 6 but I haven't seen any information about raid 6. Is this raid
>>>> level usable ?
>>> 
>>> 
>>> Once upon a time I asked a similar question to the original RAIDframe
>>> developers, and IIRC the answer was 'the code is there, and should be
>>> mostly working, but hasn't been well tested'.
>>> 
>>> I've not tested it at all either, and at this point would not recommend
>>> it for any important data.  (Feel free to experiment with it, and let
>>> us/me know the results though!)
>>> 
>>> Later...
>>> 
>>> Greg Oster
>>> 
>> 
>>        Strange. Raid level 5 is now obsolete and should be replaced by
>> level 6. NetBSD should provide level 6 in raidframe...
> 
> Sounds like an excellent project for an interested party to work
> through the RAID6 support in RAIDframe (or even work on the NetBSD ZFS
> port :)

Starting testing it and bug report any problems found could be a start at least… 

/P