[CentOS-virt] Can I use direct attached storage as a shared filesystem in Xen

Rich rhdyes at gmail.com
Tue Feb 9 15:21:44 UTC 2010

So how do I go about doing this?  My servers are already set up as 4 virtual
machines on xen.  Each one of them have a block device setup for the data.
Can I remove those block devices and then set up the GFS or do I have to
start all over again?

On Tue, Feb 9, 2010 at 10:13 AM, Rich <rhdyes at gmail.com> wrote:

> I want to make the 10 terabytes raid an xfs filesystem and then share the
> drive with all 4 of the vm's.  3 of the servers will be samba servers and
> one will be my Lotus notes server.  I want to make the filesystem /data and
> then each one of the servers will use specific sub directories.  I have it
> set up as block devices now but I want the flexibility of having the whole
> 10 terabytes available to all 4 servers.
> On Tue, Feb 9, 2010 at 1:28 AM, Christopher G. Stach II <cgs at ldsys.net>wrote:
>> ----- "Adam Adamou" <adam0x54 at gmail.com> wrote:
>> > either nfs or ocfs2. nfs is the easiest route. ocfs2 will give you a
>> > clustered filesystem.
>> Except NFS doesn't follow normal filesystem semantics and you can end up
>> with corrupt data without knowing it, and it, along with CIFS, will give you
>> a free shitload of network overhead to go along with your possibly corrupt
>> data. OCFS2 or GFS are the only practical choices if you want it to behave
>> like a typical filesystem and not have to worry about catering to it or
>> rewriting software and/or reeducating developers, and OCFS2 is extremely
>> easy to set up.
>> The original question didn't specify much about the requirements, though.
>> A single shared filesystem? Read-write or read-only? No filesystem at all?
>> Without that information, I would at first recommend not sharing. It can be
>> a lot of trouble, it's usually not required, and it severely complicates
>> life when things fail.
>> Well, there is always XenFS... :/
>> --
>> Christopher G. Stach II
>> http://ldsys.net/~cgs/ <http://ldsys.net/%7Ecgs/>
>> _______________________________________________
>> CentOS-virt mailing list
>> CentOS-virt at centos.org
>> http://lists.centos.org/mailman/listinfo/centos-virt
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