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Re: [Xen-users] xen cloud - shared storage question


  • To: "Olivier B." <xen.list@xxxxxxxxx>
  • From: Peter den Hartog <peterdenhartog@xxxxxxxxx>
  • Date: Thu, 11 Feb 2010 17:54:45 +0100
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 11 Feb 2010 08:55:49 -0800
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Good point :D i'll think about this, playing arround with xen 4 at the moment tho for the sync of vm function.. maby that's a better solution for my problem :) 

On Wed, Feb 10, 2010 at 10:21 PM, Olivier B. <xen.list@xxxxxxxxx> wrote:
If you know DRBD, why not to use it on Dom0 ? Xen can directly use "drbd" devices.

Olivier

Peter den Hartog a écrit :
hehe it's not that i don't like it, the hole setup makes sense but i'm just thinking about how to implement this in my situation :-), so basicly let's say i have 4 servers (physicial) i could take 2 for running the vm's, and 2 for actualy holding the vm's and replicate those last 2 servers with drbd or something like that..

On Mon, Feb 8, 2010 at 12:09 PM, Ahmed Kamal <email.ahmedkamal@xxxxxxxxxxxxxx <mailto:email.ahmedkamal@xxxxxxxxxxxxxx>> wrote:

   Yes the VMs will be stored on the NFS sr, and yes that's a SPOF.
   if you don't like that, replicate the storage box

   On Mon, Feb 8, 2010 at 1:06 PM, Peter den Hartog
   <peterdenhartog@xxxxxxxxx <mailto:peterdenhartog@xxxxxxxxx>> wrote:

       Ok that makes sense, so i would have to have an extra server
       configured with NFS that he uses to migrate, or are the actual
       VM's have to be stored on that NFS sr? Because doesn't that
       mean that you will have a single point of failure, the NFS
       server?

       On Mon, Feb 8, 2010 at 12:02 PM, Ahmed Kamal
       <email.ahmedkamal@xxxxxxxxxxxxxx
       <mailto:email.ahmedkamal@xxxxxxxxxxxxxx>> wrote:

           The standard setups needs a third shared storage box
           exposing either iscsi or NFS, if you don't want to do any
           hacks

           On Mon, Feb 8, 2010 at 12:52 PM, Peter den Hartog
           <peterdenhartog@xxxxxxxxx
           <mailto:peterdenhartog@xxxxxxxxx>> wrote:

               I'm pretty succesfull in deploying the xen cloud, but
               i only got 1 big issue at this moment, when i
               installed the host software, i just installed all the
               basic stuff, and now i would like to share the storage
               of node 1 with node 2, and vica versa so i can migrate
               (live?) vm's from 1 to 2 and back, i created a
               storrage pool and this seemed to work.. but while
               trying to migrate i got an error that there was no
               shared sr..

               is there a way to share the default hd's of the 2 hosts?

               Thanks,
               Peter

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       --        Groet // Kind regards,
       Peter den Hartog

       Sent from Amsterdam, NH, Netherlands





--
Groet // Kind regards,
Peter den Hartog

Sent from Amsterdam, NH, Netherlands
------------------------------------------------------------------------


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--
Groet // Kind regards,
Peter den Hartog

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