AW: [Xen-users] Shared volume: Software-ISCSI or GFS or OCFS2?

["Rustedt, Florian" <Florian.Rustedt@xxxxxxxxxxx>]

Ok?

So what's the real advantage of using "software-iscsi" then for me?

And what about GFS instead of OCFS2?

 

Kind regards, Florian

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Von: Nick Couchman [mailto:Nick.Couchman@xxxxxxxxx]
Gesendet: Freitag, 14. November 2008 17:23
An: Rustedt, Florian
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Betreff: Re: [Xen-users] Shared volume: Software-ISCSI or GFS or OCFS2?

Well, I'm not sure it's a matter of iSCSI OR a filesystem, but that 
depends on how you decide to go about setting it up.  In my environment, I 
have both iSCSI and FC access to the same volumes.  Some of my servers have 
FC HBAs and connect to my XEN volume that way, some of them have hardware iSCSI 
HBAs, and some of them use software iSCSI initiators.  I have three XEN 
volumes - one for server domUs, one for VDI domUs, and one for development 
domUs.  All of these volumes are formatted with OCFS2 so that I can mount 
them on all of my servers.  The domUs then use file-based disks that reside 
on the shared volumes, so I can migrate them back and forth between servers 
relatively easily.

You could use iSCSI to do individual volumes for each 
of your domUs - I found it a bit cumbersome to have to go into either EVMS or 
LVM each time I wanted to create a domU and create a volume for it, so I'm 
sticking with the file-based approach.

-Nick


-----Original 
Message-----
From: Rustedt, Florian <Florian.Rustedt@xxxxxxxxxxx>
To: 
xen-users@xxxxxxxxxxxxxxxxxxx
Subject: 
[Xen-users] Shared volume: Software-ISCSI or GFS or OCFS2?
Date: Fri, 
14 Nov 2008 11:09:33 +0100

Hello list,

I want to use shared volumes between severall vm's and defenetly don't
want to use NFS or Samba!

So i have three options:
1. simulated(software-) iscsi
2. GFS
3. OCFS2

What do you suggest and why?

Kind regards, Florian
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