From: Stefan Hajnoczi <stefanha@gmail.com>
To: Vasiliy Tolstov <v.tolstov@selfip.ru>
Cc: libvirt-users@redhat.com, libvirt-list@redhat.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [libvirt] best way to provide disk storage for vm without shared storage system
Date: Thu, 4 Jul 2013 10:57:12 +0200 [thread overview]
Message-ID: <20130704085712.GD2945@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <CACaajQsW5VKAdgTM8_3FA18kHFh-4tNyt6Bx_7+B-i=Mg6Rcig@mail.gmail.com>
On Wed, Jul 03, 2013 at 05:31:44PM +0400, Vasiliy Tolstov wrote:
> Now i provide ext4 fs for qcow2 images (raid1 with two sata disks).
> Now i don't need live migration (but may need it in feature).
> What is the best way to provide disks to vm in case of performance,
> ability to create backups (i don't want lvm snapshots)?
>
> As i search from google more speed can take physical storage - lvm.
> But may be QED or FVD can provide near lvm performance to me?
"Best" really depends. If you don't want to use LVM you could use raw
image files (fast) and perform backups inside the guest just like on a
physical machine.
qcow2 has pretty good performance nowadays. If you care about
performance then benchmark your workload to decide which configuration
best. There is no single answer because it depends on your workload and
additional constraints (like no LVM).
Stefan
prev parent reply other threads:[~2013-07-04 8:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-03 13:31 [Qemu-devel] best way to provide disk storage for vm without shared storage system Vasiliy Tolstov
2013-07-04 8:57 ` Stefan Hajnoczi [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=20130704085712.GD2945@stefanha-thinkpad.redhat.com \
--to=stefanha@gmail.com \
--cc=libvirt-list@redhat.com \
--cc=libvirt-users@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=v.tolstov@selfip.ru \
/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).