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From Clayton Weise <cwe...@iswest.net>
Subject RE: CLoudStack and OpenFiler2.99
Date Tue, 18 Sep 2012 16:06:30 GMT
If it's a LUN, it's a block device.  You can't just look in "/" and find it.  In the case of
XenServer, it creates a CLVM device for the iSCSI or FC LUN and that logical volume is shared
amongst all of the hosts in the cluster.  Then, for each virtual disk (VDI) you create XenServer
creates an LVM "partition" (partition isn't actually the correct technical term, but it's
the easiest way to express it) for that virtual disk.  So essentially, each virtual disk is
another LVM partition.

It's not a filesystem, it's not like NFS.  You can't just browse into it, in the same way
you can't just plug in a hard drive and browse into that either.  You need a filesystem on
top of the block device that you then need to mount.

If you're used to iSCSI or FC with VMware the reason you can browse into a block device is
because VMware formats the device with a filesystem called VMFS.  In the case of XenServer,
there is no file system, just block devices that are handed to individual virtual machines.

-----Original Message-----
From: claude bariot [mailto:clobariot@gmail.com] 
Sent: Tuesday, September 18, 2012 7:31 AM
To: cloudstack-users@incubator.apache.org
Subject: Re: CLoudStack and OpenFiler2.99

Thanks for this precision.

Bat, How can I display datas (VMs Root DISKs) on the Lun ?
I'll need to do ls command into the storage server or not /
How can I find stored directory when I would like to display files ...

regards


On 18 September 2012 16:14, Jason Davis <scr512@gmail.com> wrote:

> Remember that if you will be presenting LUNs to your XenServer Cluster,
> that the LUN is effectively shared between all hosts within the cluster...
> ie: LUNs are not tied to a specific host per say.
>
> On Tue, Sep 18, 2012 at 8:38 AM, claude bariot <clobariot@gmail.com>
> wrote:
>
> > We'll using XenServer as Hypervisor.
> > My boss prefere to create same Luns with OpenFiler, then each Lun will be
> > attached to Xen Host.
> >
> > May be we can use it as a local primary storage.
> >
> > I know that, We can add PS via CS UI.
> >
> > On 18 September 2012 15:21, Jason Davis <scr512@gmail.com> wrote:
> >
> > > Ah time to chime in :)
> > >
> > > I would recommend using NFS for primary and secondary storage... NFS is
> > > *much* more straight forward. That and VM's provisioned via NFS are
> > > inherently thin. With iSCSI this may or may not be true (dependent on
> > what
> > > hypervisor is being used.)
> > >
> > > Based on what you are setting up, the theoretical speed advantages of
> > iSCSI
> > > vs NFSv3 are moot.
> > >
> > > -Jason
> > >
> > >
> > >
> > > On Tue, Sep 18, 2012 at 6:23 AM, claude bariot <clobariot@gmail.com>
> > > wrote:
> > >
> > > > One more question :
> > > > How can I find files (for Primary and Secondary Storage) When there
> are
> > > > using Iscsi device (Luns) ?
> > > >
> > > > regards
> > > >
> > > >
> > > > On 18 September 2012 10:30, claude bariot <clobariot@gmail.com>
> wrote:
> > > >
> > > > > I building a testbed plateform.
> > > > > Could you let me know, the pest precedures (best way) for configure
> > it.
> > > > > I have 2 hosts (xenserver), 1 Mangement server (Ubuntu 10.04) 1
> > storage
> > > > > server with OpenFiler
> > > > >
> > > > > I need the process please ..
> > > > >
> > > > >
> > > > > regards
> > > > >
> > > > >
> > > > > On 17 September 2012 23:51, Geoff Higginbottom <
> > > > > geoff.higginbottom@shapeblue.com> wrote:
> > > > >
> > > > >> Hi Claude,
> > > > >>
> > > > >> We have frequently used OpenFiler on our test and proof of concept
> > > (POC)
> > > > >> builds, however to be fair none of our clients have ever used
it
> in
> > a
> > > > >> production environment.
> > > > >>
> > > > >> Regards
> > > > >>
> > > > >> Geoff
> > > > >>
> > > > >>
> > > > >> On 17 Sep 2012, at 14:45, "claude bariot" <clobariot@gmail.com>
> > > wrote:
> > > > >>
> > > > >> Hello
> > > > >>
> > > > >> Someone has already used CloudStack with OpenFiler as storage
> > > > management ?
> > > > >> ShapeBlue provides a range of strategic and technical consulting
> and
> > > > >> implementation services to help IT Service Providers and
> Enterprises
> > > to
> > > > >> build a true IaaS compute cloud. ShapeBlue's expertise, combined
> > with
> > > > >> CloudStack technology, allows IT Service Providers and Enterprises
> > to
> > > > >> deliver true, utility based, IaaS to the customer or end-user.
> > > > >>
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> > > > or
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> > > > >> represent those of Shape Blue Ltd. If you are not the intended
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