@nikade that is one of the downfalls. Limit on backup, I have a 10Gbp iSCSI backbone with 10Gbp core network but maximum I am able to achieve is 80mbps maximum turns outs it’s a known problem according to Olivier Citrix Hypervisor also has the same problem.

@waveguide This makes sense. Windows will treat it as changing hardware due to the Boot environment and BIOS.

It is no different to doing a motherboard swap on a Server or PC.

Windows should reactivate though once connected to the Internet.

@jasonnix Yes XCP-ng has vSAN look here https://xcp-ng.org/docs/storage.html#storage-types it is called XOSAN.

XCP-ng will work fine with EMC & QNAP. I am using two EMC iSCSI SANs with my 3 node Cluster.

@olivierlambert I am open to building stuff into XCP-ng if my knowledge was there to do it.

@olivierlambert Have a great holiday you deserve it

@olivierlambert

Just a update, I have moved from the Single Socket Server to the Dell R710 with 128GB of RAM successfully all VMs are working I have also updated to 8.2

Good afternoon,

I have resolved the problem. Domo was trying to use the network Controller. Fixed it by using,

/opt/xensource/libexec/xen-cmdline --set-dom0 "xen-pciback.hide=(0000:44:00.0)(0000:44:00.1)(0000:45:00.0)(0000:45:00.1)"

reboot

xl pci-assignable-list

Xen Orchestra now allows PCI Networking Card to Pass-Through the VM.

Regards

@TeddyAstie Hi thanks for your message,

This is the output from the R620 xl info

host                   : RHS-XCP-Host
release                : 4.19.0+1
version                : #1 SMP Thu Jan 13 12:55:45 CET 2022
machine                : x86_64
nr_cpus                : 24
max_cpu_id             : 47
nr_nodes               : 2
cores_per_socket       : 6
threads_per_core       : 2
cpu_mhz                : 2600.017
hw_caps                : bfebfbff:77bee3ff:2c100800:00000001:00000001:00000281:00000000:00000100
virt_caps              : pv hvm hvm_directio pv_directio hap shadow iommu_hap_pt_share
total_memory           : 262080
free_memory            : 147511
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 13
xen_extra              : .4-9.19.1
xen_version            : 4.13.4-9.19.1
xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 6e2fc128eb1a, pq dd3d13f0a45e
xen_commandline        : dom0_mem=7584M,max:7584M watchdog ucode=scan dom0_max_vcpus=1-16 crashkernel=256M,below=4G console=vga vga=mode-0x0311
cc_compiler            : gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
cc_compile_by          : mockbuild
cc_compile_domain      : [unknown]
cc_compile_date        : Wed Feb  9 12:07:47 CET 2022
build_id               : b709b0bb6a0cad9906689853f5bc629ba4b3e23f
xend_config_format     : 4

R620 is running 8.2.1 plan on upgrade though,

This is the output from the R720 which is running 8.3

host                   : r720vm
release                : 4.19.0+1
version                : #1 SMP Tue May 6 15:24:43 CEST 2025
machine                : x86_64
nr_cpus                : 24
max_cpu_id             : 47
nr_nodes               : 2
cores_per_socket       : 6
threads_per_core       : 2
cpu_mhz                : 1999.999
hw_caps                : bfebfbff:1fbee3ff:2c100800:00000001:00000001:00000000:00000000:00000100
virt_caps              : pv hvm hvm_directio pv_directio hap gnttab-v1 gnttab-v2
total_memory           : 131007
free_memory            : 98858
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 17
xen_extra              : .5-13
xen_version            : 4.17.5-13
xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 430ce6cd9365, pq 3941a9ecb541
xen_commandline        : dom0_mem=7584M,max:7584M watchdog ucode=scan dom0_max_vcpus=1-16 crashkernel=256M,below=4G console=vga vga=mode-0x0311
cc_compiler            : gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1)
cc_compile_by          : mockbuild
cc_compile_domain      : [unknown]
cc_compile_date        : Tue May 13 11:56:07 CEST 2025
build_id               : 276c39c6465df3ee400d28199a52e4760162470e
xend_config_format     : 4

output from xl dmesg R720,

I cannot post xl dmesg however with passthrough to the VM the host is reporting the following relating to vd-d,

(XEN) [    5.749249] Brought up 24 CPUs
(XEN) [    5.763020] Testing NMI watchdog on all CPUs:ok
(XEN) [    5.876546] Scheduling granularity: cpu, 1 CPU per sched-resource
(XEN) [    5.890556] mcheck_poll: Machine check polling timer started.
(XEN) [    5.924606] NX (Execute Disable) protection active
(XEN) [    5.938382] d0 has maximum 3416 PIRQs
(XEN) [    5.952084] csched_alloc_domdata: setting dom 0 as the privileged domain
(XEN) [    5.965967] *** Building a PV Dom0 ***
(XEN) [    6.298965]  Xen  kernel: 64-bit, lsb
(XEN) [    6.312489]  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x302c000
(XEN) [    6.327086] PHYSICAL MEMORY ARRANGEMENT:
(XEN) [    6.340730]  Dom0 alloc.:   0000001ff0000000->0000001ff4000000 (1920491 pages to be allocated)
(XEN) [    6.355230]  Init. ramdisk: 000000203edeb000->000000203ffff70b
(XEN) [    6.369315] VIRTUAL MEMORY ARRANGEMENT:
(XEN) [    6.383053]  Loaded kernel: ffffffff81000000->ffffffff8302c000
(XEN) [    6.396886]  Phys-Mach map: 0000008000000000->0000008000ed0000
(XEN) [    6.410703]  Start info:    ffffffff8302c000->ffffffff8302c4b8
(XEN) [    6.424553]  Page tables:   ffffffff8302d000->ffffffff8304a000
(XEN) [    6.438320]  Boot stack:    ffffffff8304a000->ffffffff8304b000
(XEN) [    6.452059]  TOTAL:         ffffffff80000000->ffffffff83400000
(XEN) [    6.465789]  ENTRY ADDRESS: ffffffff8242b180
(XEN) [    6.481017] Dom0 has maximum 16 VCPUs
(XEN) [    6.586427] Masked UR signaling on 0000:00:00.0
(XEN) [    6.599996] Found masked UR signaling on 0000:00:01.0
(XEN) [    6.613599] Found masked UR signaling on 0000:00:01.1
(XEN) [    6.627188] Found masked UR signaling on 0000:00:02.0
(XEN) [    6.640830] Found masked UR signaling on 0000:00:02.2
(XEN) [    6.654539] Found masked UR signaling on 0000:00:03.0
(XEN) [    6.668125] Found masked UR signaling on 0000:00:03.2
(XEN) [    6.681745] Masked VT-d error signaling on 0000:00:05.0
(XEN) [    6.713524] Found masked UR signaling on 0000:40:01.0
(XEN) [    6.727164] Found masked UR signaling on 0000:40:02.0
(XEN) [    6.740897] Found masked UR signaling on 0000:40:03.0
(XEN) [    6.754561] Found masked UR signaling on 0000:40:03.2
(XEN) [    6.768225] Masked VT-d error signaling on 0000:40:05.0
(XEN) [   16.159374] Initial low memory virq threshold set at 0x4000 pages.
(XEN) [   16.173083] Scrubbing Free RAM in background
(XEN) [   16.186689] Std. Loglevel: Errors, warnings and info
(XEN) [   16.200411] Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) [   16.214412] ***************************************************
(XEN) [   16.228050] Booted on L1TF-vulnerable hardware with SMT/Hyperthreading
(XEN) [   16.241806] enabled.  Please assess your configuration and choose an
(XEN) [   16.255669] explicit 'smt=<bool>' setting.  See XSA-273.
(XEN) [   16.269483] ***************************************************
(XEN) [   16.283372] Booted on MLPDS/MFBDS-vulnerable hardware with SMT/Hyperthreading
(XEN) [   16.297418] enabled.  Mitigations will not be fully effective.  Please
(XEN) [   16.311534] choose an explicit smt=<bool> setting.  See XSA-297.
(XEN) [   16.325707] ***************************************************
(XEN) [   16.339991] 3... 2... 1...
(XEN) [   19.353800] Xen is relinquishing VGA console.
(XEN) [   19.411460] *** Serial input to DOM0 (type 'CTRL-a' three times to switch input)
(XEN) [   19.412014] Freed 2048kB init memory
(XEN) [   28.498008] Found masked UR signaling on 0000:00:00.0
(XEN) [   28.498616] Found masked UR signaling on 0000:00:01.0
(XEN) [   28.499192] Found masked UR signaling on 0000:00:01.1
(XEN) [   28.499878] Found masked UR signaling on 0000:00:02.0
(XEN) [   28.500461] Found masked UR signaling on 0000:00:02.2
(XEN) [   28.501128] Found masked UR signaling on 0000:00:03.0
(XEN) [   28.501759] Found masked UR signaling on 0000:00:03.2
(XEN) [   28.502227] Masked VT-d error signaling on 0000:00:05.0
(XEN) [   28.556213] Found masked UR signaling on 0000:40:01.0
(XEN) [   28.556880] Found masked UR signaling on 0000:40:02.0
(XEN) [   28.557563] Found masked UR signaling on 0000:40:03.0
(XEN) [   28.558191] Found masked UR signaling on 0000:40:03.2
(XEN) [   28.558674] Masked VT-d error signaling on 0000:40:05.0

Regards

Good evening,

So i am setting a homelab with a friend, he has recently bought a Dell R720 to run everything on i.e pfSense with PCI-E Passthrough as well as TrueNAS with a H200E Pass through, although the system is allowing PC-E passthrough to the VM we are having issues where pfSense isn't taking full control of the network controller.

So after investigating, the BIOS on the R720 has no option for vt-D I have tested the same situation on the R620 and both servers are showing the same, no vt-d in the BIOS nothing to do with IOMMU. would anyone have any ideas ?

When running the command dmesg | grep -e DMAR -e IOMMU this nothing there it's blank.

Same with grep vmx /proc/cpuinfo

Regards

Howdy folks, just curiosity I have staging environments for Production Public VMs I like to test upgrades and changes on staging environments, is it possible to copy a existing Disk to use on another staging Virtual Machine without messing with the existing VM?

Regards

@waveguide This makes sense. Windows will treat it as changing hardware due to the Boot environment and BIOS.

It is no different to doing a motherboard swap on a Server or PC.

Windows should reactivate though once connected to the Internet.

@olivierlambert I am open to building stuff into XCP-ng if my knowledge was there to do it.

@olivierlambert Thanks for your reply. I will have a play over the weekend. Have a few days as it’s bank holiday so I can get something’s done. Are you going to implement the UPS API you did for me? I’ve chooses to go with PowerChute in the end over NUT. I will post some documentation once I have implemented it and tested if that’s okay.

Regards.

@olivierlambert Hope you have a great time away sir Would it be possible if you could add dark mode to the next version of XO 5.9.4 ? I know you mentioned about it being in version 6. Anyways have a good weekend

@olivierlambert That's great, hope something great comes out of it. Good luck

@olivierlambert said in Dell cancels VMWare contract after Broadcom purchase:

Time to make a phone call to Dell

Yes sir do it. I hopefully a contract between you / Vates and Dell is on the horizen. Really hope XCP-ng comes as the standard for Virtualization just like ESXi once was.