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Re: Is RAID6 supported by Debian?

Thanks, all, for your quick replies. Very helpful. Now I now where to look. (Not especially new to *nix, but naive about Linux, especially Debian.)

--Mark Allums

Damon L. Chesser wrote:
Damon L. Chesser wrote:
Mark Allums wrote:
Ron Johnson wrote:
> On 04/28/08 17:47, Mark Allums wrote:
>> Is RAID6 supported by Linux/GNU/Debian/Etch/Lenny/Sid, at all?
>> Can't find any info on this, other than unhelpful references.
>> Wikipedia was a bust. Google references only seem to indicate that it
>> is still experimental.
> Do you mean the md software RAID driver?

Yes, I mean software RAID.

>> Any suggestions?
> A horrendously expensive hardware RAID card with battery-backup and
> lots of cache would do the trick...

Any *helpful* suggestions?

Oh, Helpful suggestions!

damon@dam-main:~$ cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4]
md0 : active raid1 hdg6[0] hdh6[1]
     76613888 blocks [2/2] [UU]

So, since I have mdadm installed and I am running raid1, the cat results in listing raid6 as a possible "Personality" I would say it works just fine. YMMV. Try it.

man mdadm (but only in part, a very small part

 -l, --level=
Set raid level. When used with --create, options are: linear, raid0, 0, stripe, raid1, 1, mirror, raid4, 4, raid5, 5, raid6, 6, raid10, 10, multipath,
             mp, faulty.  Obviously some of these are synonymous.

When used with --build, only linear, stripe, raid0, 0, raid1, multipath, mp, and faulty are valid.

             Not yet supported with --grow.

so, again, it seems to be supported.


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