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  1. Hi guys, i have a problem with passthrough two intel nic's (pci-express x1 slot) in a vm for pfsense testing. I have tried everything, videos on internet, this forum ecc.. but i not resolve the problem. The iommu gruop is disabled in "unraid info". the vt-d and vt-x is enable on bios. The screenshots and the diagnostics are in atttached, do you have any ideas? 🙂 for completeness: recently, i changed my configuration for a supermicro x9scl+- F + i3 3220. Before i hava an asorck itx + celeron processor on board, but I had no problem with the replacement: vms, dockers, array ecc... are fully fuctional the motherboard bios is the lastes. thanks teo nas-srv-diagnostics-20210115-1443.zip
  2. thanks for reply Jorge, you centered the problem! For this moment the machine has been moved for maintenance in other room, and not near the switch (probably problem with the cable? need investigation), I put it away, in orgin position and the write speed increase 10/15 mbs. The performance with or without cache are almost similar, something more without cache but not significant (3/5 mbs). In attach the test with iperf3 from my client pc (in the second i changed the position of machine). Then I did a test for write/read inside unraid from/to two shared folder (1 with cache and 1 one not) the speed in write are 140 mbs (no cache) 160mbs (cache). after this result, the problem is not of unraid but of the network, probably my laptop connected via nic, the next steps are testing the netwoks with my client near the switch, and it's possible to change the network conf of unraid with two nic in bonding. another note: instead I have not noticed variations using the nic realtek or intel. thanks Teo test_iperf.txt test_2_iperf.txt
  3. Hi all, i'm newer for unraid, and i testing it with trial version v.6.8.3. (I come from OMV). I have a problem with a slow ssd cache write, i have 2 ssd (1 very old, samsung 840 EVO 256gb, but in discrete condition and 1 new WD 240 green). I try all solution: - brtfs cache pool - only one disk formatted in xfs - only one disk formatted in rfs. in all of case my write speed with cache is 22/23 mbs (gigabit network). i tryed to change my nic from realtek to intel (two nic intel pci express card), but the result is the same. If do not use the cache ad use only hdd (1 hdd wd green 2tb very old and 1 hdd HSGT hc310 4tb new for parity) the speed in write is 35/40 mbs, this result returns for disk performance and how unraid works. The setup is in AHCI in bios: :~# lsscsi -H [0] usb-storage [1] ahci [2] ahci [3] ahci [4] ahci ~# lsscsi -g [0:0:0:0] disk Kingston DataTraveler 3.0 PMAP /dev/sda /dev/sg0 [1:0:0:0] disk ATA HGST HUS726T4TAL W460 /dev/sdb /dev/sg1 [2:0:0:0] disk ATA WDC WD20EARX-00P AB51 /dev/sdc /dev/sg2 [3:0:0:0] disk ATA WDC WDS240G2G0A- 0400 /dev/sdd /dev/sg3 [4:0:0:0] disk ATA Samsung SSD 840 AB0Q /dev/sde /dev/sg4 i tryed varius guide with trim the ssds and install plugins. But now I don't know how to solve, diagnositcs is in attached. sorry for my english! :) Regards Teo nas-srv-diagnostics-20200527-1204.zip