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Re: [Xen-users] Some iommu questions(mostly about intel's vt-d)

What are you planning on using your new system ?
If you with Âto go with such specs did you look at prebuild system. Buying from dell outlet could save money.
It seems like over kill for a system. I am really impressed with speed of A8 6600k it took two minutes to compile xen 4.4
The motherboard only has two x16 and lots of Âpci cardsÂ

On Wed, Jun 25, 2014 at 4:09 PM, Gordan Bobic <gordan@xxxxxxxxxx> wrote:
HGST drives or WD Red drives would probably be a better choice. HGST seems to be statistically more reliable.

If you go with WD, Red series have working TLER which is important for RAID (including software/ZFS variety). Just make sure you enable it in smarts.conf.

Mihail Ivanov <mihail.ivanov93@xxxxxxxxx> wrote:

>Hash: SHA1
>I've finally decided I am gonna go the expensive way.
>Getting a E5-1650V2(3.5-3.9Ghz).
>(The other option being 2 x E5-2609 2,4Ghz which will get me 8 cores,
>but without HT and on much lower clock - so I'd rather have the
>E5-1650V2, also I don't really want to go dual socket)
>Those single socket 2011 server motherboards seem like the way to go
>if one wants to be sure everything works.
>Now I am kinda only considering Asrock vs Supermicro
>(no ASUS for me please :), Intel's mobos are uATX and I want ATX, why
>would I want to pay 300$+ and get like 2 PCI-E slots)
>I am thinking of getting this mobo Asrock EPC602D8A:
>Do you think it's good? It's a server/workstation board based on the
>602 Chipset with explicit support for Vt-d, a lot of PCI_E slots too,
>Sata ports too.
>Yet I haven't found any feedback on that mobo, so I'd be cool if
>someone could share his thoughts on it.
>I will be passing through kinda everything(NIC's, SATA
>Controllers,Powerful VGA's,etc).
>Only 3-4 cheap VGA's will stay in Dom0(and maybe sound too).
>I've read some papers and decided ECC is a must so -
>so i will most likely use 8 x 8GB 1600 ECC.
>As for storage:
>ZFS on 3 x WD Black 2 TB in Raid 5,
>And a cheap A-data SSD 120GB as cache.
>On 06/25/2014 03:48 PM, H. Sieger wrote:
>> I agree with Gordan and his advice. However, ASrock seems to have a
>> good reputation for VT-d support, but you definitely should check
>> with them first! While Asus hardware isn't bad (as Gordan said),
>> they are not committed in any way to support VT-d. One top of the
>> line board - for example the Rampage IV Extreme - may support VT-d
>> (via BIOS), the other won't, or only partially (e.g. Black
>> edition). Also, some boards like the RIVE support VT-d with the
>> latest Intel CPUs, others don't. Unless something drastically
>> changed, their tech support is totally useless, even if you talk
>> directly to headquarters. In the realm of enthusiast boards, ASRock
>> seems to be an exception in that they support VT-d in a range of
>> boards and in that they actually know what VT-d is for. Citrix
>> certified boards will most likely be workstation boards.
>> Here is a list of motherboards I compiled based on success stories:
>> http://www.overclock.net/t/1338063/vt-d-compatible-motherboards
>> Here the same for graphics cards:
>> http://www.overclock.net/t/1307834/xen-vga-passthrough-compatible-graphics-adapters
>> ÂOf course both lists aren't exhaustive, but provide perhaps a
>> starting point.
>> On Monday, June 23, 2014 10:19 PM, Mihail Ivanov
>> <mihail.ivanov93@xxxxxxxxx> wrote:
>> Hello everyone, I am new to xen and I'd like to ask some things.
>> I am looking to use Xen with both PV and HVM guests. I want to
>> pass-through most of my devices to DomU's. My main concern so far
>> is what hardware should I choose?
>> I've decided on the cpu - Intel i7-4770. The ram will most likely
>> be 32GB - two kits of Geil 2x8GB 1600-2166 Mhz. About the mobos -
>> what I know so far is that ASUS don't officially support Vt-d, but
>> Asrock say they do. So I am thinking of getting an Asrock. Thing is
>> - so far I've read about people using the z87 chipset, but only one
>> example of z97. Also on Intel's website they are saying that z87
>> has Vt-d, but nothing about the z97.
>> So can someone confirm if Asrock Z97 mobos support Vt-d? Also if it
>> has problems with its tables?(EPT ones, if I am not mistaken).
>> I am particularly interested in the Asrock Z97 Extreme4. Perhaps
>> someone around here has experience with it?
>> Also I've read about the GPU pass-through, so I've decided to use
>> AMD since nVidia has no support for it (unless I change the ID of
>> my vga to a quadro or some other professional vga).
>> Not having an FLR isn't an issue, correct?
>> And now my main concern - which of these devices can be used with
>> pass-through: the integrated sound card the integrated NIC the sata
>> controllers(expensive boards have two - one from the chipset and
>> another one) the usb controllers
>> All of those should be PCI devices, correct? Also in an article in
>> wikipedia, they say that some mobos don't have support for Vt-d for
>> example on PCIe x8 or mini? How come only one or two slots can't
>> work?
>> Also can I passtrough just one USB device or I have to do it with
>> the whole controller?(as a PCI device I guess).
>> Greetings, Mihail
>> _______________________________________________ Xen-users mailing
>> list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users
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