[xen-tools-discuss] Re: Using AoE storage

[Tom Hallman]

Hi again Mike,

>>   Thanks for your response.  Has this been working well for you?
> 
> I've only used it in testing.

   Ah okay.

>>   I assume those commands have to specified on each host that needs to
>> use the shared storage.
> 
> The pvcreate and vgcreate only need to be run on one host. The other hosts
> pick up on the settings because LVM details are written to the disks.

   Very good.  Thanks for explaining that.

>>  Does this require LVM to use any kind of locking?
> 
> This doesn't give me locking. I'm not comfortable with that.
> 
> CLVM does give you clustered locking but I haven't got that working.

   Okay.  If I understand correctly, live migration basically passes the 
contents of memory to the new machine and then hands over control of the 
disk anyway - which means locking wouldn't technically be required.  Is 
that right?

   Thanks for your help in this, Mike!

Yours,
   Tom