From: Smart Weblications GmbH - Florian Wiessner <f.wiessner@smart-weblications.de>
To: Sebastien HAN <han.sebastien@gmail.com>
Cc: Marcus Sorensen <shadowsor@gmail.com>,
ceph-devel <ceph-devel@vger.kernel.org>
Subject: Re: No lock on RBD allow several mount on different servers...
Date: Sun, 12 Aug 2012 11:37:29 +0200 [thread overview]
Message-ID: <50277959.1080603@smart-weblications.de> (raw)
In-Reply-To: <06A44B2B-FA7F-418C-B9D2-D0602F4EB95B@gmail.com>
Am 12.08.2012 10:40, schrieb Sebastien HAN:
>>>>>>>
>>>>>>> With RBD images, the theory makes possible to mount them multiple
>>>>>>> times on different servers, of course **no one** wants that. If you
>>>>>>> care about the consistency of your data :D
>>>>>>> I was wondering if ceph has any lock ability on the RBD device like
>>>>>>> DRBD does with secondary resource. Apparently not, I was able to mount
>>>>>>> an image on multiple server and wrote data on both.
>>>>>>>
>>>>>>> Is this an incoming feature?
>>>>>>>
>>>>>>> I don't really know the difficulty level that this kind of feature
>>>>>>> implies, but it would be nice to have it.
>>>>>>>
I use ocfs2 ontop of mapped rbd images - works great.
--
Mit freundlichen Grüßen,
Florian Wiessner
Smart Weblications GmbH
Martinsberger Str. 1
D-95119 Naila
fon.: +49 9282 9638 200
fax.: +49 9282 9638 205
24/7: +49 900 144 000 00 - 0,99 EUR/Min*
http://www.smart-weblications.de
--
Sitz der Gesellschaft: Naila
Geschäftsführer: Florian Wiessner
HRB-Nr.: HRB 3840 Amtsgericht Hof
*aus dem dt. Festnetz, ggf. abweichende Preise aus dem Mobilfunknetz
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2012-08-12 9:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-11 23:50 No lock on RBD allow several mount on different servers Sébastien Han
[not found] ` <CALFpzo49Urnf8rnFCQ=wQ8eFMR0-8FWh2=9nKrCAxb+0Xm0rVQ@mail.gmail.com>
[not found] ` <CAOLwVUnSUpAC69W48gbz-+7L7+p9z5tioODh_hPwVEt39GDvHw@mail.gmail.com>
[not found] ` <CALFpzo4X7iL6aEUtqyEBp4AMDxKkK9wtwPx35WQVauYQbe8Hng@mail.gmail.com>
2012-08-12 0:35 ` Marcus Sorensen
2012-08-12 0:53 ` Marcus Sorensen
2012-08-12 8:40 ` Sebastien HAN
2012-08-12 9:37 ` Smart Weblications GmbH - Florian Wiessner [this message]
2012-08-12 15:44 ` Sage Weil
2012-08-13 16:55 ` Gregory Farnum
2012-08-13 17:22 ` Josh Durgin
2012-08-13 17:49 ` Yehuda Sadeh
2012-08-15 8:18 ` Sébastien Han
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=50277959.1080603@smart-weblications.de \
--to=f.wiessner@smart-weblications.de \
--cc=ceph-devel@vger.kernel.org \
--cc=han.sebastien@gmail.com \
--cc=shadowsor@gmail.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 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.