Hi, as i had to enable ASC now to get my VM´s working.

 

is there anything i have to watch now and can this cause issues ?

 

as i see now my groups are more or less all splitted off now and the devices are not grouped anymore ...

wich i would say is prefect  but i assume theres a reason why it aint like this by default

 

is it only that i should know that i cant passthrough special devices somewhere and break things ? or can it cause

system issues ? anything special i have too look for in logs ? i cant find any special "errors" or so actually.

 

my "new" IOMMU groups are like this now and all seems to be fine, but ...

 

IOMMU group 0:	[8086:591f] 00:00.0 Host bridge: Intel Corporation Intel Kaby Lake Host Bridge (rev 05)
IOMMU group 1:	[8086:1901] 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 05)
IOMMU group 2:	[8086:1905] 00:01.1 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x8) (rev 05)
IOMMU group 3:	[8086:5912] 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 630 (rev 04)
IOMMU group 4:	[8086:1911] 00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
IOMMU group 5:	[8086:a2af] 00:14.0 USB controller: Intel Corporation 200 Series PCH USB 3.0 xHCI Controller
	[8086:a2b1] 00:14.2 Signal processing controller: Intel Corporation 200 Series PCH Thermal Subsystem
IOMMU group 6:	[8086:a2ba] 00:16.0 Communication controller: Intel Corporation 200 Series PCH CSME HECI #1
IOMMU group 7:	[8086:a282] 00:17.0 SATA controller: Intel Corporation 200 Series PCH SATA controller [AHCI mode]
IOMMU group 8:	[8086:a2e7] 00:1b.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #17 (rev f0)
IOMMU group 9:	[8086:a2eb] 00:1b.4 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #21 (rev f0)
IOMMU group 10:	[8086:a290] 00:1c.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #1 (rev f0)
IOMMU group 11:	[8086:a294] 00:1c.4 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #5 (rev f0)
IOMMU group 12:	[8086:a296] 00:1c.6 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #7 (rev f0)
IOMMU group 13:	[8086:a298] 00:1d.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #9 (rev f0)
IOMMU group 14:	[8086:a2c5] 00:1f.0 ISA bridge: Intel Corporation 200 Series PCH LPC Controller (Z270)
	[8086:a2a1] 00:1f.2 Memory controller: Intel Corporation 200 Series PCH PMC
	[8086:a2f0] 00:1f.3 Audio device: Intel Corporation 200 Series PCH HD Audio
	[8086:a2a3] 00:1f.4 SMBus: Intel Corporation 200 Series PCH SMBus Controller
IOMMU group 15:	[10de:1b81] 01:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1070] (rev a1)
	[10de:10f0] 01:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1)
IOMMU group 16:	[19a2:0700] 02:00.0 Ethernet controller: Emulex Corporation OneConnect OCe10100/OCe10102 Series 10 GbE (rev 02)
	[19a2:0700] 02:00.1 Ethernet controller: Emulex Corporation OneConnect OCe10100/OCe10102 Series 10 GbE (rev 02)
IOMMU group 17:	[10de:1d01] 04:00.0 VGA compatible controller: NVIDIA Corporation GP108 [GeForce GT 1030] (rev a1)
	[10de:0fb8] 04:00.1 Audio device: NVIDIA Corporation GP108 High Definition Audio Controller (rev a1)
IOMMU group 18:	[1b21:2142] 06:00.0 USB controller: ASMedia Technology Inc. Device 2142
IOMMU group 19:	[1106:3483] 07:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01)
IOMMU group 20:	[144d:a802] 08:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01)

i enabled this and had some disk DMA messages in the logs for 24 hours.

all of a sudden one my parity drives just dropped out of the array and a data disk just died as well.

Yet both disks are fine, i wouldn't turn this option on even though it also fixed my passthrough issues its now broken things.

See my experience here:

 

https://lime-technology.com/forums/topic/37959-guide-passing-through-network-controllers-to-unraid-6-virtual-machines/?do=findComment&comment=602127

 

Same reason here, I had to move the nic in the 2nd pcie slot and then it was grouped with the GTX 1070 ...

I ll check if i can arrange otherwise, then both GPU would be probably grouped ... The 10g nic needs at least a x4 slot when I remember correctly, so i don't have too many options [emoji16]

Thanks for the link ... So I watch for errors now [emoji41]

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