From piotr.szubiakowski at nask.pl Wed Jul 10 08:17:06 2013 Content-Type: multipart/mixed; boundary="===============5267403250761996903==" MIME-Version: 1.0 From: Piotr Szubiakowski To: users at ovirt.org Subject: Re: [Users] which file system for shared disk? Date: Wed, 10 Jul 2013 14:16:48 +0200 Message-ID: <51DD50B0.8010700@nask.pl> In-Reply-To: 51DD465D.70902@freedominterface.org --===============5267403250761996903== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------060805040100080505090603 Content-Type: text/plain; charset=3DISO-8859-1; format=3Dflowed Content-Transfer-Encoding: 7bit Hi Eduardo, yes fencing method used in OCFS2 is probably better for vitalized = environments. Thanks for advice! Many thanks, Piotr W dniu 10.07.2013 13:32, Eduardo Ramos pisze: > Hi Piotr! > > I've used OCFS2 out of oVirt, so I can't tell you specifically about = > VM environment, but I suggest you use OCFS2 in place of GFS2. It is = > simpler to implement, so less components to configure and it care = > about fencing for you. > > On 07/10/2013 08:15 AM, Piotr Szubiakowski wrote: >> Hi, >> we are developing an application where would be great if multiple = >> host could have access to the same disk. I think that we can use = >> features like shared disk or direct LUN to attach the same storage to = >> multiple VM's. However to provide concurrent access to the resource, = >> there should be a cluster file system used. The most popular open = >> source cluster file systems are GFS2 and OCFS2. So my questions are: >> >> 1) Does anyone have share disk between VM's in oVirt? What fs did You = >> used? >> 2) Is it possible to use GFS2 on VM's that are running on oVirt? Does = >> anyone have run fencing mechanism with ovirt/libvirt? >> >> Many thanks, >> Piotr >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users --------------060805040100080505090603 Content-Type: text/html; charset=3DISO-8859-1 Content-Transfer-Encoding: 7bit Hi Eduardo, yes fencing method used in OCFS2 is probably better for vitalized environments. Thanks for advice! Many thanks, Piotr
W dniu 10.07.2013 13:32, Eduardo Ramos pisze:

Hi Piotr!

I've used OCFS2 out of oVirt, so I can't tell you specifically about VM environment, but I suggest you use OCFS2 in place of GFS2. It is simpler to implement, so less components to configure and it care about fencing for you.

On 07/10/2013 08:15 AM, Piotr Szubiakowski wrote:

Hi,
we are developing an application where would be great if multiple host could have access to the same disk. I think that we can use features like shared disk or direct LUN to attach the same storage to multiple VM's. However to provide concurrent access to the resource, there should be a cluster file system used. The most popular open source cluster file systems are GFS2 and OCFS2. So my questions are:

1) Does anyone have share disk between VM's in oVirt? What fs did You used?
2) Is it possible to use GFS2 on VM's that are running on oVirt? Does anyone have run fencing mechanism with ovirt/libvirt?

Many thanks,
Piotr
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