From: Marc MERLIN <marc@merlins.org>
To: Hugo Mills <hugo@carfax.org.uk>, Duncan <1i5t5.duncan@cox.net>,
linux-btrfs@vger.kernel.org
Subject: Re: raid0 vs single, and should we allow -mdup by default on SSDs?
Date: Wed, 7 May 2014 01:52:40 -0700 [thread overview]
Message-ID: <20140507085240.GN10159@merlins.org> (raw)
In-Reply-To: <20140507082941.GA19199@carfax.org.uk>
On Wed, May 07, 2014 at 09:29:41AM +0100, Hugo Mills wrote:
> On Wed, May 07, 2014 at 01:18:40AM -0700, Marc MERLIN wrote:
> > On Tue, May 06, 2014 at 07:39:12PM +0000, Duncan wrote:
> > > That appears to be a very good use of either -d raid0 or -d single, yes.
> > > And since you're apparently not streaming such high resolution video that
> > > you NEED the raid0, single does indeed give you a somewhat better chance
> > > at recovery.
> >
> > zoneminder saves 'video' as a stream of independent small jpegs, so I'm
> > good. Actually come to think of it they're so small that they probably
> > all ended up in the raid1 metadata. That also means that I'm not getting
> > twice the storage space like I planned to. Oh well...
>
> There's a mount option to change the threshold at which files are
> inlined in metadata: maxinline=<bytes>. You could play with that for
> this particular use-case.
Oh cool, thank you.
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
next prev parent reply other threads:[~2014-05-07 8:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-03 23:27 Is metadata redundant over more than one drive with raid0 too? Marc MERLIN
2014-05-04 6:57 ` Brendan Hide
2014-05-04 7:24 ` Marc MERLIN
2014-05-04 7:44 ` Brendan Hide
2014-05-05 1:27 ` Marc MERLIN
2014-05-06 19:05 ` Duncan
2014-05-06 19:39 ` Duncan
2014-05-05 0:46 ` Daniel Lee
2014-05-05 5:06 ` Marc MERLIN
2014-05-06 17:16 ` Duncan
2014-05-07 8:18 ` raid0 vs single, and should we allow -mdup by default on SSDs? Marc MERLIN
2014-05-07 8:29 ` Hugo Mills
2014-05-07 8:52 ` Marc MERLIN [this message]
2014-05-07 22:39 ` Mitch Harder
2014-05-04 21:49 ` Is metadata redundant over more than one drive with raid0 too? Duncan
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