From: Christoph Hellwig <hch@infradead.org>
To: Henrik Goldman <hg@x-formation.com>
Cc: target-devel@vger.kernel.org, dm-devel@redhat.com
Subject: Re: Target and deduplication?
Date: Thu, 28 Jan 2016 00:50:13 -0800 [thread overview]
Message-ID: <20160128085013.GA18023@infradead.org> (raw)
In-Reply-To: <CAKdSmgsZe_dfhN_7R6P7tLfkciv-9dUJKKNj16xeWYXG8aTVVA@mail.gmail.com>
On Thu, Jan 28, 2016 at 12:44:25AM +0100, Henrik Goldman wrote:
> Hello,
>
> Has anyone (possibly except purestorage) managed to make target work
> with deduplication?
The iblock drivers works perfectly fine on top of the dm-dedup driver,
which unfortunately still hasn't made it to mainline despite looking
rather solid.
I'm pretty sure you can use the file driver on top of btrfs (and XFS
soon!) and use the non-inline dedup feature, but I haven't tried it.
> This means making a filesystem and using fileio to map to a disk image
> on the filesystem.
> ZFS is obviously another way to get the same but comes at a cost of
> large memory consumption.
Nevermind that you can ship or distribute the resulting product as the
ZFS licensing doesn't allow that.
next parent reply other threads:[~2016-01-28 8:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAKdSmgsZe_dfhN_7R6P7tLfkciv-9dUJKKNj16xeWYXG8aTVVA@mail.gmail.com>
2016-01-28 8:50 ` Christoph Hellwig [this message]
2016-01-28 11:23 ` [dm-devel] Target and deduplication? Joe Thornber
2016-01-28 11:39 ` Nikolay Borisov
2016-01-28 13:56 ` Mike Snitzer
2016-02-02 3:51 ` Alex Gorbachev
2016-02-02 18:15 ` Christoph Hellwig
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=20160128085013.GA18023@infradead.org \
--to=hch@infradead.org \
--cc=dm-devel@redhat.com \
--cc=hg@x-formation.com \
--cc=target-devel@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).