RE: [Xen-users] problem with extra storage via iscsi

["Artur Linhart - Linux communication" <AL.LINUX@xxxxxxxxxxx>]

Hello,

        As far as I know there is the limit 100Mbit at least for the hvm
guests... OK, now we have been spoken about the PV guests, it is true :-)

        Cheers, Artur

-----Original Message-----
From: Javier Guerra [mailto:javier@xxxxxxxxxxx] 
Sent: Wednesday, August 27, 2008 7:46 PM
To: Artur Linhart - Linux communication
Cc: Gertjan Oude Lohuis; Tammo Schuelke; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] problem with extra storage via iscsi

On Wed, Aug 27, 2008 at 12:42 PM, Artur Linhart - Linux communication
<AL.LINUX@xxxxxxxxxxx> wrote:
> Hello,
>
>        From my point of view, Tammo is right...
>
> You write:
> Why would performance be better with an extra layer (dom0)?
>
> - because in DomU You can have as far as I know in maximum 100MBit network
> device, in Dom0 You can use the gigabit (or possible 10Gbit - I did not
> tried it) connection without problems, so any network device should have
> then much more better performance if mapped as block device through
Dom0...

there's no 'hard' limit of DomU network performance.  but it's usually
much lower than block device performance.



-- 
Javier

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