Re: graid hit the tree

From: Garrett Cooper <yanegomi_at_gmail.com>
Date: Fri, 17 Jun 2011 06:33:20 -0700
On Fri, Jun 17, 2011 at 6:09 AM, Gavin Atkinson <gavin_at_freebsd.org> wrote:
> On Thu, 2011-03-24 at 23:48 +0200, Alexander Motin wrote:
>> Hi.
>>
>> I've just committed the new GEOM-based software RAID driver (graid) into
>> the HEAD [1]. Brave testers are welcome. :)
>>
>> 1. http://svn.freebsd.org/viewvc/base?view=revision&revision=219974
>
> One question.
>
> I'm very happy with the performance of the ahci subsystem, it is
> measurably faster against the old ATA subsystem on modern hardware.  I
> also really appreciate the compatibility shims to aid migration from the
> adX style numbering to adaX.  On every system I've migrated so far, this
> mapping has worked flawlessly.
>
> Is there any chance that mapping from /dev/arX -> /dev/raid/r0 etc could
> also be done?
>
> One thing that I have found is that it can be hard to determine from the
> dmesg exactly where raid partitions will appear.  It would be wonderful
> if devices similar to the "adX" devices could be made, for any graid
> devices found.

    For this case, would it make more sense to advise folks to use
devfs.conf ? Otherwise one would need to tell geom to talk ataraid a
bit, which may or may not confuse some consumers.
Thanks,
-Garrett
Received on Fri Jun 17 2011 - 11:33:22 UTC

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