From: Marc MERLIN <marc@merlins.org>
To: John Stoffel <john@stoffel.org>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>,
Mikael Abrahamsson <swmike@swm.pp.se>,
linux-raid@vger.kernel.org
Subject: Re: md raid5 on top of dmcrypt, or dmcrypt on top of md raid5?
Date: Sun, 21 Feb 2016 16:44:36 -0800 [thread overview]
Message-ID: <20160222004436.GH5512@merlins.org> (raw)
In-Reply-To: <22206.14606.181359.676881@quad.stoffel.home>
On Fri, Feb 12, 2016 at 02:57:02PM -0500, John Stoffel wrote:
>
> Marc,
>
> Did you look into lvcache instead of bcache? The problem with bcache
> is that you can't (as I understand it) remove it from a live volume,
> while you can with lvache.
I've used LVM2 in the past, and I'm not a big fan of the extra layers
(and back then clear slowdowns).
To be honest, I won't be needing to remove a cache from a volume while
it's running, so that's not too much a concern for me.
I did a bit of reading on one vs the other, and dmcache seemed to have
more users behind it and been around longer, so I went with that.
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
prev parent reply other threads:[~2016-02-22 0:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-11 16:29 md raid5 on top of dmcrypt, or dmcrypt on top of md raid5? Marc MERLIN
2016-02-11 17:13 ` Andreas Klauer
2016-02-11 17:40 ` Marc MERLIN
2016-02-12 9:30 ` Mikael Abrahamsson
2016-02-12 14:34 ` Jes Sorensen
2016-02-12 19:07 ` Marc MERLIN
2016-02-12 19:57 ` John Stoffel
2016-02-22 0:44 ` Marc MERLIN [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160222004436.GH5512@merlins.org \
--to=marc@merlins.org \
--cc=Jes.Sorensen@redhat.com \
--cc=john@stoffel.org \
--cc=linux-raid@vger.kernel.org \
--cc=swmike@swm.pp.se \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.