From: hansbkk@gmail.com
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] lvm2: zeroing free space
Date: Fri, 4 Feb 2011 23:21:08 +0700 [thread overview]
Message-ID: <AANLkTin2vZFr1NMmKwjWV4Uf6T=edaxVeng8WXQaUsQ9@mail.gmail.com> (raw)
In-Reply-To: <20110204155403.GD1535@redhat.com>
On Fri, Feb 4, 2011 at 10:54 PM, Mike Snitzer <snitzer@redhat.com> wrote:
> On Fri, Feb 04 2011 at �9:12am -0500,
> Bryn M. Reeves <bmr@redhat.com> wrote:
>> They wanted a method to write zeros to all the unallocated space in a VG to
>> trigger a reclaim of unused regions in the VG's PVs.
Probably not directly relevant, but perhaps of interest to those who
haven't come across it before.
Zerofree is designed to do this for loopback filesystems; I came
across it in the context of union/aufs overlays, via Grml's changelog
http://intgat.tigress.co.uk/rmy/uml/sparsify.html
next prev parent reply other threads:[~2011-02-04 16:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-04 14:12 [linux-lvm] lvm2: zeroing free space Bryn M. Reeves
2011-02-04 15:54 ` Mike Snitzer
2011-02-04 16:21 ` hansbkk [this message]
2011-02-04 16:37 ` Bryn M. Reeves
2011-02-04 20:02 ` Martin K. Petersen
2011-02-08 2:10 ` wayne.berthiaume
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='AANLkTin2vZFr1NMmKwjWV4Uf6T=edaxVeng8WXQaUsQ9@mail.gmail.com' \
--to=hansbkk@gmail.com \
--cc=linux-lvm@redhat.com \
/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).