RE: [PATCH 1/2] md: raid5 return new layout in mdstat whilereshaping

> -----Original Message-----
> From: dan.j.williams [at] gmail.com [mailto:dan.j.williams [at] gmail.com] On
> Behalf Of Dan Williams
> Sent: Thursday, July 22, 2010 2:59 AM
> To: Trela, Maciej
> Cc: Neil Brown; Kwolek, Adam; linux-raid [at] vger.kernel.org
> Subject: Re: [PATCH 1/2] md: raid5 return new layout in mdstat while
> reshaping
>
> On Wed, Jul 21, 2010 at 4:03 AM, Trela, Maciej <Maciej.Trela [at] intel.com>
> wrote:
> > From: Maciej Trela <maciej.trela [at] intel.com>
> >
> > While reshaping, report mdstat algorithm according to the new_layout.
>
> It's not immediately clear to me why this is needed? The md/layout
> attribute in sysfs shows the new_layout during reshape if userspace
> forgets what it changed (should also be recorded in the metadata). If
> it is needed then spell that out in the commit message.
>

Yes, you are right.
We can definitely read the new layout from sysfs.
Thanks.

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Maciej.Trela [ Do, 22 Juli 2010 10:43 ] [ ID #2044915 ]
Linux » gmane.linux.raid » RE: [PATCH 1/2] md: raid5 return new layout in mdstat whilereshaping

Vorheriges Thema: Re: BUG REPORT: md RAID5 write throughput will drop for 1~2s every
Nächstes Thema: [PATCH 0/2] md: migrations for external metadata