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List:       qubes-devel
Subject:    Re: [qubes-devel] Addressing the long shutdown time with LVM thin volumes
From:       Peter Todd <pete () petertodd ! org>
Date:       2021-02-23 7:22:07
Message-ID: 20210223072207.ceqnxl5z4rcmwfbp () petertodd ! org
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On Thu, Feb 11, 2021 at 11:02:51AM +0000, Rusty Bird wrote:
> Peter Todd:
> > On Fri, Feb 05, 2021 at 06:59:05PM +0100, donoban wrote:
> > > On 2/5/21 5:24 PM, Jinoh Kang wrote:
> > > > - Switch to reflinks. BTRFS has been around 10+ years, so I assume it's
> > > > stable enough?
> > > 
> > > I've been using BTRFS for a few years now and haven't had any problems
> > > except some CPU bottleneck using send/receive, but probably you are not
> > > interested in that functionality.
> > 
> > I'd like to see btrfs added for its checksums as well. I've personally had
> > `btrfs scrub` catch hardware problems before more data got silently corrupted.
> 
> It's not the default, but Qubes already supports this since R4.0.1:
> 
> If the Btrfs layout is selected (instead of LVM Thin) during Qubes
> installation, a 'file-reflink' storage driver pool will be created
> automatically.

I didn't realize this was still an option. Just tried it out on a new install,
and looks like it still works. Thanks!

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org

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