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Re: [Xen-users] Can guests share an FC HBA?

To: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Can guests share an FC HBA?
From: "lists@xxxxxxxxxxxx" <lists@xxxxxxxxxxxx>
Date: Sun, 25 Jan 2009 22:35:13 -0600
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Nick mentioned that the host can share it's drives/storage so this has made me 
wonder about something.

In my testing so far, each guest usually has NFS mounts to a central storage. I 
don't know the NFS protocol well so am only guessing that such a connection 
means chatter on the network.

So, if there are say 10 guests on a server, each connected to the shared 
storage via NFS, this would end up being a ton more Ethernet chatter than it 
would if I could simply connect the storage ONCE to the host, then give each 
guess access to this.

Make sense?

Mike


On Mon, 26 Jan 2009 08:21:00 +0700, Fajar A. Nugraha wrote:
> On Mon, Jan 26, 2009 at 6:31 AM, lists@xxxxxxxxxxxx <lists@xxxxxxxxxxxx> 
> wrote:
> 
>> Something that is not clear to me, which I've not found any information
>> on is, is it possible for guests to 'share' a card that's installed in
>> the host.
>
> Long answer : Yes, but chances are you might not have the necessary
> requirements yet.
> 
> http://blog.fosketts.net/tag/pvscsi/
> http://en.wikipedia.org/wiki/NPIV



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