[Xen-users] Re: Xen-users Digest, Vol 58, Issue 119

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On Wed, Dec 23, 2009 at 3:00 PM, <xen-users-request@xxxxxxxxxxxxxxxxxxx> wrote:

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Today's Topics:

  1. Re: How Many domUs on a Host (Grant McWilliams)
  2. pv_ops reassigndev for pci passthrough (Michael D Labriola)
  3. Re: pv_ops reassigndev for pci passthrough (Chris)
  4. Re: [Xen-devel] pv_ops reassigndev for pci passthrough
     (Keir Fraser)
  5. Re: How do I get Windows licenses for virtual machines?
     (Anthony Wright)


----------------------------------------------------------------------

Message: 1
Date: Wed, 23 Dec 2009 08:57:51 -0800
From: Grant McWilliams <grantmasterflash@xxxxxxxxx>
Subject: Re: [Xen-users] How Many domUs on a Host
To: Mohammed King <mohammed.king@xxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Message-ID:
       <ed123fa30912230857j42075015rac2e064eaf68985c@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"

On Tue, Dec 22, 2009 at 11:45 PM, Mohammed King <mohammed.king@xxxxxxxxx>wrote:

> Hi guys,
>
> Looking for some guide lines to find out how many domUs I can host on a
> server. I have a Dual Quad Core (8 cores) server with 32GB of RAM. Currently
> I have allocated 512MB of RAM to dom0 and distributed the rest to 89 domUs
> with 1 VPU each and LVM as my backend. I was able to get all 89 running with
> no problems. I ram some test with stress and bonnie++ in a group of domUs
> and dom0 and other guests does not seam to be effected.
>
> However, I could be evaluating this incorrectly. Are there any tools or
> guidelines to confirm these results or do better performance analysis? My
> main concern is I/O and CPU usage.
>
> Thank you
> --
> Mohammed King
> Systems Administrator
> ----------------------------
> No condition is permanent
>


It depends on what the DomUs are doing. I run 42 interactive gui sessions on
a very similar machine and it's pretty well tapped.


Grant McWilliams

Some people, when confronted with a problem, think "I know, I'll use
Windows."
Now they have two problems.
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Message: 2
Date: Wed, 23 Dec 2009 12:42:13 -0500
From: Michael D Labriola <mlabriol@xxxxxxxx>
Subject: [Xen-users] pv_ops reassigndev for pci passthrough
To: xen-devel@xxxxxxxxxxxxxxxxxxx,      xen-users@xxxxxxxxxxxxxxxxxxx
Message-ID:
       <OF389C1A6C.69CE28C1-ON85257695.0060AA6D-85257695.00613FB2@xxxxxxxx>
Content-Type: text/plain; charset="US-ASCII"

What ever happened to the reassigndev= kernel arg?  I read through a bunch
of emails way back when that was trying to get upstreamed... basically
Greg KH didn't like using the PCI addresses as arguments.  Did that get
addressed in later 2.6.18 trees?  Am I correct in assuming that
reassigndev= and/or its replacement is not in xen/master yet?

I've got PCI devices passed into domUs on a couple different boxes using
xen-pciback.hide, but it only works if the PCI device is page-aligned.

-Mike

---
Michael D Labriola
Electric Boat
mlabriol@xxxxxxxx
401-848-8871 (office)
401-316-9844 (cell)



------------------------------

Message: 3
Date: Wed, 23 Dec 2009 13:28:47 -0500
From: Chris <tknchris@xxxxxxxxx>
Subject: Re: [Xen-users] pv_ops reassigndev for pci passthrough
To: Michael D Labriola <mlabriol@xxxxxxxx>
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>,
       "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Message-ID: <4686F275-63AC-485B-9C0C-1F8433597F4B@xxxxxxxxx>
Content-Type: text/plain;       charset=utf-8;  format=flowed;  delsp=yes

I have the exact same situation/problem

Skickat från min iPhone

Dec 23, 2009 kl. 12:42 PM skrev Michael D Labriola <mlabriol@xxxxxxxx>:

> What ever happened to the reassigndev= kernel arg?  I read through a
> bunch
> of emails way back when that was trying to get upstreamed... basically
> Greg KH didn't like using the PCI addresses as arguments.  Did that
> get
> addressed in later 2.6.18 trees?  Am I correct in assuming that
> reassigndev= and/or its replacement is not in xen/master yet?
>
> I've got PCI devices passed into domUs on a couple different boxes
> using
> xen-pciback.hide, but it only works if the PCI device is page-aligned.
>
> -Mike
>
> ---
> Michael D Labriola
> Electric Boat
> mlabriol@xxxxxxxx
> 401-848-8871 (office)
> 401-316-9844 (cell)
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users



------------------------------

Message: 4
Date: Wed, 23 Dec 2009 19:03:55 +0000
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: [Xen-users] Re: [Xen-devel] pv_ops reassigndev for pci
       passthrough
To: Michael D Labriola <mlabriol@xxxxxxxx>,
       "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>,
       "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Message-ID: <C7581A1B.52C2%keir.fraser@xxxxxxxxxxxxx>
Content-Type: text/plain;       charset="US-ASCII"

New option is reassign_resources. Used like:
guestdev=00:01.0,00:02.0 reassign_resources
Where you use guestdev= instead of pciback.hide=

 -- Keir

On 23/12/2009 17:42, "Michael D Labriola" <mlabriol@xxxxxxxx> wrote:

> What ever happened to the reassigndev= kernel arg?  I read through a bunch
> of emails way back when that was trying to get upstreamed... basically
> Greg KH didn't like using the PCI addresses as arguments.  Did that get
> addressed in later 2.6.18 trees?  Am I correct in assuming that
> reassigndev= and/or its replacement is not in xen/master yet?
>
> I've got PCI devices passed into domUs on a couple different boxes using
> xen-pciback.hide, but it only works if the PCI device is page-aligned.
>
> -Mike
>
> ---
> Michael D Labriola
> Electric Boat
> mlabriol@xxxxxxxx
> 401-848-8871 (office)
> 401-316-9844 (cell)
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel





------------------------------

Message: 5
Date: Wed, 23 Dec 2009 19:18:09 +0000
From: Anthony Wright <anthony@xxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] How do I get Windows licenses for virtual
       machines?
To: Dustin.Henning@xxxxxxxxxxx
Cc: 'Nathan Eisenberg' <nathan@xxxxxxxxxxxxxxxx>,
       xen-users@xxxxxxxxxxxxxxxxxxx
Message-ID: <4B326CF1.8000008@xxxxxxxxxxxxxxx>
Content-Type: text/plain; charset=ISO-8859-1

What we're talking about is a buyback contract for the physical
hardware. I want our customers to own the hardware (often they supply
it), but for the terms of the SPLA licensing agreement from Microsoft my
company has to own the hardware. Thus a buyback contract would allow us
to buy the hardware from the customer for a nominal $1 while it was
needed to provide the service to them, prevent us from selling it to
anybody else, include terms to deal with exceptional circumstances like
company failure and at any time the customer can buy the hardware back
for $1. Buying the hardware back would obviously terminate the contract
with them, since they would no longer be licensed for the software.

Anthony.

Dustin Henning wrote:
>       Wouldn't buyback contracts with an option to buy be Potentially
> dangerous with a virtual machine?  I mean, if they own the virtual machine,
> then do they only own the data, or do they own a potentially perpetual chunk
> of virtual hardware that you might have to host permanently for free?
> Obviously this would allow you to continue to sell bandwidth, but when the
> hardware machine died, the virtual machine didn't really, so the virtual
> machine might have to be considered as infallible.  Sad to say, but in such
> a scenario, perhaps virtuozzo ore HyperV with an Enterprise license would be
> better alternatives.  Keep digging, though, I'm sure the list would love to
> see a solution involving Xen.
>       Dustin
>
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Anthony Wright
> Sent: Wednesday, December 23, 2009 10:39
> To: Nathan Eisenberg
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] How do I get Windows licenses for virtual machines?
>
> I'm interested to look at a server licensing program, I'm just more
> familiar with the desktop software, and was in a hurry so started there.
> Essentially I have  a dotNET application, and need IIS & the dotNET
> framework to be able to run it (it's not suitable for Mono
> unfortunately). I'm trying to find the cheapest way to do this, and if
> possible one that doesn't involve handling large numbers of boxes or
> licenses.
>
> Any information you could provide on the Server 2008 licensing would be
> really appreciated. Also if you happen to know where I could look at
> some sale & buyback contracts to use as examples, that would be really
> useful too.
>
> Thanks,
>
> Anthony.
>
> Nathan Eisenberg wrote:
>
>> There's not a licensing program I am aware of that does what you want
>>
> using the desktop product lineup.  For what you are doing, it sounds like a
> server OS (server 2008 web if your application is appropriate for that OS),
> a SPLA, plus some business arrangements (equipment is sold to your company
> for $1 at the start of the contract, and the customer has an optional $1
> buyback at the close of the contract) are required.
>
>> Best Regards,
>> Nathan Eisenberg
>>
>>
>>
>>
>>> -----Original Message-----
>>> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
>>> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Anthony Wright
>>> Sent: Tuesday, December 22, 2009 8:29 AM
>>> To: xen-users@xxxxxxxxxxxxxxxxxxx
>>> Subject: [Xen-users] How do I get Windows licenses for virtual
>>> machines?
>>>
>>> I'm having real problems trying to negotiate through Microsoft to be
>>> able to find a license that I can buy for a Windows XP Pro or Windows 7
>>> Pro DomU, that allows the following things:
>>>
>>> 1) There is no Windows OEM license for the hardware as Linux is the
>>> Dom0
>>> O/S and we only install a Windows DomU on a small proportion of boxes
>>>
>>> 2) Normally the customer owns the hardware not us
>>>
>>> We've just started shipping a product that requires this setup, and
>>> have
>>> investigated Volume Licensing - but that requires an OEM license for
>>> the
>>> box. SPLA licensing but that requires an OEM license & the box to be
>>> owned by us.
>>>
>>> The only option I've had offered by Microsoft is buying retail boxed
>>> licenses, and while I'll go down that route if I have to, it's the most
>>> expensive solution, and it's going to be a real administration headache
>>> with loads of retail boxes and keys flying around.
>>>
>>> Has anybody else had this problem before, and if so do you have any
>>> suggestions. I really am tearing my hair out on this one.
>>>
>>> thanks,
>>>
>>> Anthony Wright.
>>>
>>> _______________________________________________
>>> Xen-users mailing list
>>> Xen-users@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-users
>>>
>>>
>>>
>>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>
>>
>>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>
>
>
> _______________________________________________
> Xen-users mailing list
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> http://lists.xensource.com/xen-users
>
>




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End of Xen-users Digest, Vol 58, Issue 119
******************************************

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