Re: [PATCH v4 1/2] dm-unstripe: unstripe RAID 0/dm-striped device
From: Mike Snitzer
Date: Mon Dec 18 2017 - 14:37:54 EST
On Mon, Dec 18 2017 at 2:32pm -0500,
Mike Snitzer <snitzer@xxxxxxxxxx> wrote:
> On Mon, Dec 18 2017 at 1:52pm -0500,
> Scott Bauer <scott.bauer@xxxxxxxxx> wrote:
> > > > +config DM_UN_STRIPE
> > > > + tristate "Transpose IO to individual drives on a raid device"
> > > > + depends on BLK_DEV_DM
> > > > + ---help---
> > > > + Enable this feature if you with to unstripe I/O on a RAID 0
> > > > + device to the respective drive. If your hardware has physical
> > > > + RAID 0 this module can unstripe the I/O to respective sides.
> > >
> > > What does "sides" mean above?
> > Should say, "members". There's also an alternative patch set out by Heinz
> > that I am currently testing/writing comments for. It looks like we'll use
> > his version after I submit my comments (IE take the stuff I put in my v4
> > to fix your comments).
> Can you be more specific? I've not seen anything from Heinz.
> I've been reviewing your v4 and modified it to match dm-stripe.c more
> (like Alasdair asked for).
When the right hand isn't aware the left is doing something ;)
I'll combine my effort with Heinz's.
Please don't send another revision until you see what I've come up with.