kkkk wrote:
David Brown wrote:

I did spend a few minutes in Google trying to find detailed
information about md's RAID-6 implementation but got nowhere.
...
There is a lot more information about linux raid5 than raid6.

You mean on *Linux MD* raid5? That could be good. Where?


Google for "linux raid 5" - there are a few million hits, most of which
are for software raid (i.e., MD raid). Googling for "linux raid 6" only
gets you a few hundred thousand hits.

Raid-6 algorithms are practically equivalent to raid-5, except parity
computation obviously .

Here is a link that might be useful, if you want to know the details of
Linux raid 6:

http://www.kernel.org/pub/linux/kernel/people/hpa/raid6.pdf