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    • G

      Recommended DELL Hardware ?

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      DanpD
      @DustinB said in Recommended DELL Hardware ?: Doesn't using non-shared storage ultimately cause the VM to be started on the other host? No. Live migration can occur between hosts even if: the VDI are located on non-shared storage the hosts are in completely different pools For the cross pool migration to succeed, both pools need to support a common instruction set. Otherwise, use the Warm Migration feature that does reboot the VM so that it is running the correct instruction set on the destination host.
    • olivierlambertO

      DevOps Megathread: what you need and how we can help!

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      J
      @vates-11940382 Hi All at Vates, I just wanted to say a big thank you for the MCP support that’s now landing in Xen Orchestra. This is definitely a genuinely forward-thinking move, and it’s going to have a huge impact on how IaC tooling interacts with XCP-ng going forward. MCP gives XO a clean, structured, read-only interface that modern AI-assisted tools (e.g Pulumi Neo, Copilot, Claude, Cursor, etc.) can understand natively. That’s a massive step toward making XCP-ng an AI-visible, AI-navigable platform - something no other virtualisation stack is doing yet. What’s even more exciting is the long-term implication: this kind of openness and clarity is exactly what hyperscalers have been struggling with internally. If Vates continues down this path, it’s not unrealistic that MCP-native infrastructure could start attracting interest from much larger players - whether as customers, collaborators, or contributors. The combination of: IaC MCP AI-assisted operations and XCP-ng’s open architecture Puts Vates in a very strong position for the future. Thanks again for pushing this forward. It’s a big deal, and it’s going to unlock a lot of possibilities for the community.
    • A

      Parent VHD missing - VHD linked to backup are missing

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    • nikadeN

      Hosts fenced, new master, rebooted slaves not reconnecting to pool

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    • U

      XCP-ng 8.3 and Dell R660 - crash during boot, halts remainder of installer process (bnxt_en?)

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      U
      @stormi Thank you so much. Only now getting around to setting up another set of R660s, will let you know how this works. Edit: worked beautifully on a new set of R660s. Using the old 20250606 ISO, the BCM57414 were not detected. The new ISO works as expected (BIOS install, did not attempt UEFI) and the NICs are all enumerated properly.
    • rzrR

      FOSDEM 2026

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      rzrR
      Thank you every visitors and for those who did not had the chance to visit fosdem check this report: https://xcp-ng.org/blog/2026/02/19/fosdem-2026-follow-up/ [image: vates-xcp-ng-at-fosdem-2026-1.webp] One question, I promised to forward to the forum, how many VM are you running on XCP-ng ? Dozen, hundreds, thousands or more ?
    • H

      Potential bug with Windows VM backup: "Body Timeout Error"

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      R
      I had same problem, about last 2 weeks, but is is about Xen update, after apply last update, Backup of Windows VMs works again.
    • F

      [dedicated thread] Dell Open Manage Appliance (OME)

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      AtaxyaNetworkA
      Hello everyone ! I rebuild a new OME appliance with the latest version (4.6) Dell decided to give this appliance Proxmox, Nutanix and OpenShift compatibility, but no XCP-ng yet... If someone from Dell want to reach out about this, please contact me ! [image: 1771504614561-7f4cc1c1-90c4-4f30-94f8-cf109711cfd6-image-resized.png] What i did on the rebuild: Via live CD add xen-blkfront and xen-netfront driver, and rebuild the initrd change root password activate SSH. Via SSH sed -i -e 's/sda/xvda/g' /opt/dell/omc/utilities/tui/bin/ome_disk_config.sh sed -i -e 's/sda/xvda/g' /opt/dell/mcsi/appliance/scripts/appliance_resources.sh bash /mnt/Linux/install.sh # To install XCP-ng tools As usual, please send a DM if you want the link to the VHD Feedback is welcome ! (Disclamer: This build is something I create on my free time and to help people who have difficulty running Dell appliances on XCP-ng. I do not guarantee a fully functional appliance, but I do my best to make it work. If you have a support contract with Dell and require official support for OME, please contact Dell and request compatibility with XCP-ng.)
    • M

      File restore error on LVMs

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      Tristis OrisT
      Any news about issue?
    • G

      HP DL380 Gen 8 - XCP-ng 8.1.0 Failing to update microcode

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    • A

      Backups Failing possible interuption?

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    • S

      NVIDIA GPU passthrough on XCP-ng 8.3 fails after reboot — UUID/PCI ID changes

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      S
      @yannsionneau Hi, Sorry for the delay... menuentry 'XCP-ng' { search --label --set root root-zrxcsq multiboot2 /boot/xen.gz dom0_mem=8192M,max:8192M watchdog ucode=scan dom0_max_vcpus=1-16 crashkernel=256M,below=4G console=vga vga=mode-0x0311 module2 /boot/vmlinuz-4.19-xen root=LABEL=root-zrxcsq ro nolvm hpet=disable console=hvc0 console=tty0 quiet vga=785 splash plymouth.ignore-serial-consoles xen-pciback.hide=(0000:03:00.0) module2 /boot/initrd-4.19-xen.img } 03:00.0 VGA compatible controller: NVIDIA Corporation GB202GL [RTX PRO 6000 Blackwell Max-Q Workstation Edition] (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device 204c Physical Slot: 10 Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 89 Region 0: Memory at f4000000 (32-bit, non-prefetchable) [disabled] [size=64M] Region 1: Memory at 70060000000 (64-bit, prefetchable) [disabled] [size=256M] Region 3: Memory at 70070000000 (64-bit, prefetchable) [disabled] [size=32M] Region 5: I/O ports at 1000 [disabled] [size=128] Expansion ROM at f8000000 [disabled] [size=512K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] MSI: Enable- Count=1/16 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [60] Express (v2) Legacy Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 256 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed unknown, Width x16, ASPM L1, Exit Latency L0s unlimited, L1 unlimited ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed unknown, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR+, OBFF Via message DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Via WAKE# LnkCtl2: Target Link Speed: Unknown, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [9c] Vendor Specific Information: Len=14 <?> Capabilities: [100 v1] #19 Capabilities: [12c v1] Latency Tolerance Reporting Max snoop latency: 1048576ns Max no snoop latency: 1048576ns Capabilities: [134 v1] #15 Capabilities: [14c v1] #25 Capabilities: [158 v1] #26 Capabilities: [188 v1] #2a Capabilities: [1b8 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO+ CmpltAbrt- UnxCmplt+ RxOF+ MalfTLP+ ECRC+ UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [200 v1] #27 Capabilities: [248 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 1 ARICtl: MFVC- ACS-, Function Group: 0 Capabilities: [2a4 v1] Vendor Specific Information: ID=0001 Rev=1 Len=014 <?> Capabilities: [2bc v1] Power Budgeting <?> Capabilities: [2f4 v1] Device Serial Number 18-a6-fe-7f-8f-2d-b0-48 Kernel driver in use: pciback 03:00.1 Audio device: NVIDIA Corporation Device 22e8 (rev a1) Subsystem: NVIDIA Corporation Device 0000 Physical Slot: 10 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin B routed to IRQ 10 Region 0: Memory at f8080000 (32-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] MSI: Enable- Count=1/1 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [60] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 75.000W DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ MaxPayload 256 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend- LnkCap: Port #0, Speed unknown, Width x16, ASPM L1, Exit Latency L0s unlimited, L1 unlimited ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed unknown, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR+, OBFF Via message DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [9c] Vendor Specific Information: Len=14 <?> Capabilities: [100 v1] #25 Capabilities: [10c v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO+ CmpltAbrt- UnxCmplt+ RxOF+ MalfTLP+ ECRC+ UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [154 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 0 ARICtl: MFVC- ACS-, Function Group: 0 09:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Genoa/Bergamo Dummy Function (rev 01) Subsystem: Advanced Micro Devices, Inc. [AMD] Genoa/Bergamo Dummy Function Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Capabilities: [48] Vendor Specific Information: Len=08 <?> Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [64] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed unknown, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed unknown, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: Unknown, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Capabilities: [270 v1] #19 Capabilities: [328 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 1 ARICtl: MFVC- ACS-, Function Group: 0 Capabilities: [410 v1] #26 Capabilities: [450 v1] #27 Capabilities: [500 v1] #2a xe pci-list uuid ( RO) : 73708288-55ec-b17f-ba73-6d2c116b3bbc vendor-name ( RO): NVIDIA Corporation device-name ( RO): GB202GL [RTX PRO 6000 Blackwell Max-Q Workstation Edition] pci-id ( RO): 0000:03:00.0 uuid ( RO) : c94f0327-8c86-3aa8-dd7c-9389ae1123f5 vendor-name ( RO): Intel Corporation device-name ( RO): Ethernet Controller X550 pci-id ( RO): 0000:81:00.1 uuid ( RO) : 09e0f3b1-18bb-8a6e-97d8-0209a8e4a97c vendor-name ( RO): Advanced Micro Devices, Inc. [AMD] device-name ( RO): FCH SATA Controller [AHCI mode] pci-id ( RO): 0000:0a:00.1 uuid ( RO) : cc5feb5c-b8aa-a975-de76-513d309f8e73 vendor-name ( RO): Intel Corporation device-name ( RO): Ethernet Controller X550 pci-id ( RO): 0000:41:00.0 uuid ( RO) : 72baa4c2-13b3-22fb-cc87-b10033ccb025 vendor-name ( RO): Broadcom / LSI device-name ( RO): MegaRAID 12GSAS/PCIe Secure SAS39xx pci-id ( RO): 0000:c1:00.0 uuid ( RO) : d2d40d25-4b69-7f6a-a8e2-3101ad80fcb6 vendor-name ( RO): Intel Corporation device-name ( RO): Ethernet Controller X550 pci-id ( RO): 0000:41:00.1 uuid ( RO) : 630bdaee-0e03-b8a1-c726-4f34230e89f7 vendor-name ( RO): Intel Corporation device-name ( RO): Ethernet Controller X550 pci-id ( RO): 0000:81:00.0 uuid ( RO) : d4023077-83fe-a0b7-5f3f-516204c2c1d1 vendor-name ( RO): Advanced Micro Devices, Inc. [AMD] device-name ( RO): FCH SATA Controller [AHCI mode] pci-id ( RO): 0000:ce:00.1 uuid ( RO) : c67855cd-4908-0711-7424-a6db2eb011f0 vendor-name ( RO): Advanced Micro Devices, Inc. [AMD] device-name ( RO): FCH SATA Controller [AHCI mode] pci-id ( RO): 0000:0a:00.0 uuid ( RO) : ef1d93e4-e82b-c33c-a488-8f7a9129eb8a vendor-name ( RO): NVIDIA Corporation device-name ( RO): Device 22e8 pci-id ( RO): 0000:03:00.1 uuid ( RO) : b6235c56-4070-dc4d-9db2-5e361f38d2b2 vendor-name ( RO): Advanced Micro Devices, Inc. [AMD] device-name ( RO): FCH SATA Controller [AHCI mode] pci-id ( RO): 0000:ce:00.0 uuid ( RO) : 5c7258ae-504b-9ac4-8b16-7129b8d8455d vendor-name ( RO): ASPEED Technology, Inc. device-name ( RO): ASPEED Graphics Family pci-id ( RO): 0000:cc:00.0 xl pci-assignable-list 0000:03:00.0 Model: Supermicro AS-2015CS-TNR