[vfio-users] VFIO + ZFS build

Tue Sep 15 04:54:09 UTC 2015

Nice!! Thank you for the info.

Are you using zfs for your hypervisor root partition?

On Tuesday, September 15, 2015, Okky Hendriansyah <okky at nostratech.com>
wrote:

> Hi Jouner,
>
> I’m doing exactly like you asked for. Here’s my full spec:
>
> *Processor*:
> - Intel Core i7-4770
>
> *Motherboard*:
> - ASRock Z87 Extreme6
>
> *Memory*:
> - Patriot SLK DDR3 8 GB x 4
>
> *Graphics*:
> - Intel HD Graphics 4600 (Hypervisor graphics)
> - Gigabyte GeForce GTX 980 G1 Gaming (VM passthrough graphics)
>
> *Power Supply*:
> - Seasonic M12II-750
>
> *SAS/SATA Controller*:
> - IBM ServeRaid M1015
>
> *Storage*:
> - Intel 530 120 GB (Arch Linux Hypervisor)
> - Hitachi Deskstar 160 GB (currently as Windows 10 VM backup)
> - Hitachi Deskstar 500 GB (Games attached to Windows 10 VM as raw disk)
> - Hitachi Deskstar 2 TB (Multimedia attached to Windows 10 VM as raw disk)
> - WD Caviar Blue 1 TB x 8 (ZFS stripes of 2-way mirror, attached to IBM
> M1015)
>
> I use linux-vfio kernel in conjunction with zfs-git (both are from AUR).
> Although I do not need Intel VGA Arbitration patch since I switched my
> Windows 10 VM to use OVMF, the linux-vfio kernel is still needed since my
> system does not support ACS thus needs the PCIe ACS Override patch.
> Naturally the zfs-git AUR package is assuming to be loaded on vanilla
> linux kernel, so I need to edit the PKGBUILD for zfs-git everytime it
> needs to be updated to not depend on linux kernel. So yes, I need to
> recompile everything if both and only both updates are available from AUR.
> But if you can do GPU passthrough with stock Arch Linux kernel, then you
> can use zfs-git package from AUR straight away.
>
> I allocated only 2 GB for ZFS ARC, so far it performs stable for my needs.
> Could be adjusted if needed. My Windows 10 VM disk is a raw image file
> (.img) based on Hitachi 160 GB and I put it on top of a ZFS dataset for
> increased bandwidth plus I can do ZFS snapshot/rollback everytime I needed
> to. Still curious of the performance if I put the Windows 10 VM in a ZVOL
> though. The IBM ServeRaid M1015 is crossflashed to LSI 9211-IT mode for
> dumb storage passthrough.
>
> Before my current graphics, I have successfully passthrough HIS R9 270X
> IceQ X2, Gigabyte GeForce GTX 770 Windforce, and ASUS GeForce GTX 780
> DirectCU II to this machine, without reboot freeze whatsoever.
>
> Drooling looking at your spec, Sir.
>
> Best regards,
> --
> *Okky Hendriansyah*
>
> On September 15, 2015 at 03:24:57, Blank Field (ihatethisfield at gmail.com
> <javascript:_e(%7B%7D,'cvml','ihatethisfield at gmail.com');>) wrote:
>
> You've chosen some exceptionally good hardware build, E5 xeons shouldn't
> have ACS and other problems.
> As for the kernel - nah, one or two configuration changes and recompiles
> and you're good to go.
> Stock arch kernel doesn't even have vfio enabled, AFAIR.
> On Sep 14, 2015 7:03 PM, "Jouner Journer" <journerforums at gmail.com
> <javascript:_e(%7B%7D,'cvml','journerforums at gmail.com');>> wrote:
>
>> Hi Everyone,
>>
>> I'm looking to build a box which can run ZFS on Linux in hypervisor, misc
>> linux VMs, as well as a Windows vm for gaming.
>>
>> Is anyone doing video passthrough as well as running ZFSoL?  I've read
>> ZFS requires specific kernel versions in Arch and am wondering if I'll run
>> into compatibility issues.
>>
>> Also, this is the hardware I've selected... are there any blatant
>> problems that stick out?  I've been toying with the idea of different
>> processor (less cores, more speed), but figured more cores is better...
>>  how about Radeon R9 390X... is it too new to be tested/confirmed?
>>
>> Given that it is xeon processor and motherboard supports VT-d/VT-x,
>> motherboard and video card are uefi I'm hoping I will not run into too many
>> issues with passthrough... at least hardware limited issues ;)
>>
>> ASRock EPC612D8A-TB SSI ATX Server Motherboard Socket LGA 2011 R3
>> Intel Xeon E5-2630 v3 Haswell-EP 2.4 GHz LGA 2011-3 85W BX80644E52630V3
>> Server Processor
>> SAPPHIRE Radeon R9 390X 100381OCL 8GB 512-Bit GDDR5 PCI Express 3.0 2.2
>> Slot, ATX Tri-X OC Version (UEFI) Video Card
>>
>> SeaSonic Platinum-1000 1000W PSU
>> Intel 535 Series SSDSC2BW180H601 2.5" 180GB SATA III MLC SSD
>> Intel 535 Series SSDSCKJW360H601 M.2 360GB SATA III MLC SSD
>> Kingston 64GB (4 x 16GB) 288-Pin DDR4 SDRAM ECC Registered DDR4 2133 (PC4
>> 17000) Server Memory Model KVR21R15D4K4/64
>>
>>
>> Thanks in advance!
>>
>>
>>
>>
>>
>>
>>
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