Re: [PATCH 00/18] Assorted md patches headed for 2.6.30

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, February 12, 2009 7:11 pm, Keld Jørn Simonsen wrote:
> On Thu, Feb 12, 2009 at 02:10:10PM +1100, NeilBrown wrote:
>> Comments and testing very welcome.
>
> I would rather have functionality to convert raid10 to raid5.
> raid1 should be depreciated, as raid10,n2 for all purposes is the same
> but better implementation and performance, and raid10,f2 and raid10,o2
> are even better.  Nobody should use raid1 anymore.

That is a fairly simplistic view.
raid1 supports --write-mostly and --write-behind which raid10 is unlikely
ever to support.
Certainly in many cases raid10 is just as good or better than raid1
though.

Certainly a raid10->raid5 conversion for a 2-drive n2 configuration
is trivial to arrange.  Other conversions are less likely to be supported
as they require significant non-trivial rearrangement of data.

Thanks for the comment.

NeilBrown

--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux