Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread John R Pierce
On 09/15/10 2:19 AM, Rudi Ahlers wrote: Hi all, I'm just curios and would like some input from the community on this one. We're busy budgeting for a couple of new servers and I thought it would be good to try out the Core i7 CPU's, but see the majority of them don't offer VT-d, but just

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Rudi Ahlers
On Thu, Sep 16, 2010 at 8:24 AM, John R Pierce pie...@hogranch.com wrote: Core I7 is the branding for the desktop CPU family.  The Server processors are branded Xeon 5500 and 5600 (for dual socket servers) and Xeon 7000 for 4+ socket servers.   Typically, desktop processors go with desktop

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread John R Pierce
On 09/16/10 12:16 AM, Rudi Ahlers wrote: Yet the server vendors ship servers, with server chassis, hardware RAID, redundant power supplies, etc offer Core i7 options. How does that work? low end servers, i guess. I'd have to see a specific model to comment specifically. most of the stuff

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Lamar Owen
On Thursday, September 16, 2010 03:37:23 am John R Pierce wrote: On 09/16/10 12:16 AM, Rudi Ahlers wrote: Yet the server vendors ship servers, with server chassis, hardware RAID, redundant power supplies, etc offer Core i7 options. How does that work? low end servers, i guess. I'd

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Rudi Ahlers
On Thu, Sep 16, 2010 at 5:32 PM, Lamar Owen lo...@pari.edu wrote: On Thursday, September 16, 2010 03:37:23 am John R Pierce wrote:   On 09/16/10 12:16 AM, Rudi Ahlers wrote: Yet the server vendors ship servers, with server chassis, hardware RAID, redundant power supplies, etc  offer Core i7

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread John R Pierce
On 09/16/10 8:56 AM, Rudi Ahlers wrote: Dell's PowerEdge R210 and R310 are available with Core i3. But those aren't servers since the Core iX CPU's are desktop class CPU's ;) those are low end servers in Dell's line. I'd be looking at the R410 or R710 for virtualization hosts, along with

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Rudi Ahlers
On Thu, Sep 16, 2010 at 7:09 PM, John R Pierce pie...@hogranch.com wrote:  On 09/16/10 8:56 AM, Rudi Ahlers wrote:  Dell's PowerEdge R210 and R310 are available with Core i3. But those aren't servers since the Core iX CPU's are desktop class CPU's ;) those are low end servers in Dell's

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Alan Hodgson
On September 16, 2010 10:23:15 am Rudi Ahlers wrote: But I'm convinced now that XEON's would be better even though they're far more expensive. And at the same time our older Pentium IV, Core2Duo Core2Quad machines work as well as our XEON machines, but at much cheaper prices - which

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Rudi Ahlers
On Thu, Sep 16, 2010 at 7:37 PM, Alan Hodgson ahodg...@simkin.ca wrote: On September 16, 2010 10:23:15 am Rudi Ahlers wrote: But I'm convinced now that XEON's would be better even though they're far more expensive. And at the same time our older Pentium IV, Core2Duo Core2Quad machines work as

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread John R Pierce
On 09/16/10 10:37 AM, Alan Hodgson wrote: The 6 core Xeons are still kinda pricey though. the new AMD 6-8 core Opteron stuff, OTOH, is relatively cheap, Dell sells these as the Rx15 models, like the R715 they also support a LOT of ram. ___

Re: [CentOS] is Intel VT-d really necessary?

2010-09-16 Thread Pasi Kärkkäinen
On Wed, Sep 15, 2010 at 11:19:38AM +0200, Rudi Ahlers wrote: Hi all, I'm just curios and would like some input from the community on this one. We're busy budgeting for a couple of new servers and I thought it would be good to try out the Core i7 CPU's, but see the majority of them don't

[CentOS] is Intel VT-d really necessary?

2010-09-15 Thread Rudi Ahlers
Hi all, I'm just curios and would like some input from the community on this one. We're busy budgeting for a couple of new servers and I thought it would be good to try out the Core i7 CPU's, but see the majority of them don't offer VT-d, but just VT-x. Looking at the LGA1366 range, only the

Re: [CentOS] is Intel VT-d really necessary?

2010-09-15 Thread Alexander Dalloz
So, if VT-d really necessary? We mainly host XEN virtual machine for the hosting industry, i.e. we don't need / use graphics rendering inside VM's, or need DAS on the VM's, etc. Kind Regards Rudi Ahlers SoftDux VT-d is not a necessity in general. It all depends on the kind of

Re: [CentOS] is Intel VT-d really necessary?

2010-09-15 Thread Rudi Ahlers
On Wed, Sep 15, 2010 at 1:28 PM, Alexander Dalloz ad+li...@uni-x.org wrote: VT-d is not a necessity in general. It all depends on the kind of virtualization you run. If you run only paravirtualized guests on Xen, then there is not any need for VT-d (see [1]). If you fully virtualize for

Re: [CentOS] is Intel VT-d really necessary?

2010-09-15 Thread Emmanuel Noobadmin
Hi, I'm just curios and would like some input from the community on this one. We're busy budgeting for a couple of new servers and I thought it would be good to try out the Core i7 CPU's, but see the majority of them don't offer VT-d, but just VT-x. Looking at the LGA1366 range, only the