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    Every virtual machine I restart doesn't boot.

    Scheduled Pinned Locked Moved XCP-ng
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    • O Offline
      ohthisis
      last edited by

      I don't know what happened.

      1 Reply Last reply Reply Quote 0
      • P Offline
        Pilow @ohthisis
        last edited by Pilow

        @ohthisis the --psr- state of Grafana is suspicious...
        0.0 in Time column for Tor too

        did you have a brutal reboot / power loss of this server ?
        is your storage OK ?

        there is some commands to brutally kill all VM in hybrid states like that, but could corrupt data inside (like a forced hard shutdown would do)

        do you have backups of your VMs ?

        # xl destroy 114
        

        This command would kill the domain runtime (hard shutdown) of Grafana VM
        it would then disappear of xl list
        followed by a toolstack restart, should present you an halted VM in web UI that potentially could be started normally if no other issue on storage exists

        but :

        • i do not recommend this action if your storage currently have issues
        • i do not recommend this action if you do not have backups
        • i do not recommend this action, it could corrupt data inside the VM (it is paused.. but is it really ?!)

        just noticed you do not have same vCPUs on VMs with each command.
        there is a real desync in your system 😕

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        • O Offline
          ohthisis @Pilow
          last edited by

          @Pilow
          Please take a look at these:

          [09:08 xcp-ng ~]# df -h
          Filesystem      Size  Used Avail Use% Mounted on
          devtmpfs        2.8G   20K  2.8G   1% /dev
          tmpfs           2.8G  160K  2.8G   1% /dev/shm
          tmpfs           2.8G   11M  2.8G   1% /run
          tmpfs           2.8G     0  2.8G   0% /sys/fs/cgroup
          /dev/sda1        18G  2.0G   15G  12% /
          xenstore        2.8G     0  2.8G   0% /var/lib/xenstored
          /dev/sda5       3.9G  836M  2.8G  23% /var/log
          tmpfs           571M     0  571M   0% /run/user/0
          [09:17 xcp-ng ~]# mount | grep -E "(\/var|\/opt)"
          xenstore on /var/lib/xenstored type tmpfs (rw,relatime,mode=755)
          /dev/sda5 on /var/log type ext3 (rw,relatime)
          sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
          [09:18 xcp-ng ~]# dmesg | grep -iE "(error|fail|timeout|scsi|sd|hba)" | tail -20
          [81734324.210688] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.217399] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.223994] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.230647] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.237867] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.244529] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.251239] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.257781] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.264466] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.270941] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.277574] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.284149] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.290576] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.297118] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.306270] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.314061] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.322632] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.330717] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.337242] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [81734324.344686] Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
          [09:18 xcp-ng ~]# pvs
            PV         VG                                                 Fmt  Attr PSize  PFree  
            /dev/sda3  VG_XenStorage-00f82a18-a9f6-f7bc-9ca1-f42698d46b5f lvm2 a--  95.18g <95.18g
            /dev/sdb   VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38 lvm2 a--  <3.64t   3.09t
          [09:18 xcp-ng ~]# vgs
            VG                                                 #PV #LV #SN Attr   VSize  VFree  
            VG_XenStorage-00f82a18-a9f6-f7bc-9ca1-f42698d46b5f   1   1   0 wz--n- 95.18g <95.18g
            VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38   1   8   0 wz--n- <3.64t   3.09t
          [09:18 xcp-ng ~]# lvs -o lv_name,vg_name,lv_size,lv_attr
            LV                                       VG                                                 LSize    Attr      
            MGT                                      VG_XenStorage-00f82a18-a9f6-f7bc-9ca1-f42698d46b5f    4.00m -wi-a-----
            MGT                                      VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38    4.00m -wi-a-----
            VHD-1461c885-89c6-4e0e-8ee1-7d5be059f3dc VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38  <30.07g -wi-------
            VHD-2aaa4501-1c9b-48d6-8532-961ab8a3e627 VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38  <30.07g -wi-ao----
            VHD-4de5831d-5a4d-4d2d-9f0a-ce4d1c2d8ef5 VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38  100.20g -wi-a-----
            VHD-6b1ea821-d677-4426-99e0-43314ef3c536 VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38 <250.50g -wi-ao----
            VHD-6c08ae7f-71a7-4f97-a553-3c067dbbe243 VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38  <50.11g -wi-a-----
            VHD-bc8dd3e4-ea0e-4006-a918-817b18d65456 VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38  <50.11g -wi-ao----
            VHD-ccaaabb0-b5ae-4e29-ab8d-c895af000550 VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38  <50.11g -wi-a-----
          [09:18 xcp-ng ~]# lvdisplay /dev/VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38/VHD-ccaaabb0-b5ae-4e29-ab8d-c895af000550
            --- Logical volume ---
            LV Path                /dev/VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38/VHD-ccaaabb0-b5ae-4e29-ab8d-c895af000550
            LV Name                VHD-ccaaabb0-b5ae-4e29-ab8d-c895af000550
            VG Name                VG_XenStorage-c5129868-a590-68ca-e587-db708ad61f38
            LV UUID                TggCle-7H7d-BN1o-KU5U-8oME-lckS-z0puvZ
            LV Write Access        read/write
            LV Creation host, time xcp-ng, 2023-07-11 14:19:40 +0330
            LV Status              available
            # open                 0
            LV Size                <50.11 GiB
            Current LE             12827
            Segments               1
            Allocation             inherit
            Read ahead sectors     auto
            - currently set to     256
            Block device           253:2
            
          
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          • P Offline
            Pilow @ohthisis
            last edited by Pilow

            @ohthisis I see nothing outstanding
            you have two SRs, thick provisionned
            one small 95Gb that is empty probably created on the install, and one big 3.64Tb on /dev/sdb

            VMs are on the big SR, same sized VDIs could indicate existing snapshots.

            is your /dev/sdb a RAID5 array or a standlone disk ?

            Can you create a new test VM, that is running normally on this SR ?

            O 1 Reply Last reply Reply Quote 0
            • O Offline
              ohthisis @Pilow
              last edited by

              @Pilow
              I guess my server using RAID5.
              I created a VM with PXE as boot, but it is VM.start: 50%.

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              • P Offline
                Pilow @ohthisis
                last edited by

                @ohthisis I really don't understand what is happening to your server
                all basic tests show something is wrong but I don't know what

                hope that someone else could hop in on this case 😕
                @Danp ?

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                • O Offline
                  ohthisis
                  last edited by

                  I rebooted the server and now I got:
                  Screenshot at 2026-02-11 12-34-45.png

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                  • P Offline
                    Pilow @ohthisis
                    last edited by Pilow

                    @ohthisis you have no bootable disk on this VM, or boot order is wrong.
                    could you screen the DISKS tab and the ADVANCED tab ?

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                    • DanpD Offline
                      Danp Pro Support Team
                      last edited by

                      It is difficult to know the source of the problem without more details from your logs. Can you run the following commands on your XCP-ng host and then attach the generated files here?

                      grep -A 15 -B 15 -i error /var/log/xensource.log/xensource > xensource.txt
                      grep -A 15 -B 15 -i exception /var/log/SMlog > smlog.txt
                      dmesg -T|grep -Eiv 'guest|capacity|promiscuous' > dmesg.txt
                      
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                      • O Offline
                        ohthisis
                        last edited by ohthisis

                        Hello,
                        This issue was related to XPC-ng and caused me to delete and recreate and configure one of the most important virtual machines I have. As I said, every virtual machine I create is only 33% complete, and when I try to turn on virtual machines that are already turned off, I get the message "VM state is halted but should be running".
                        I had to turn the server off and back on to fix the problem. To be honest, I'm afraid to test again to see if the problem is fixed, because I have a VPN server that has a number of users connected to it, and I also have a monitoring server.
                        If it is a hardware problem, the green lights on the hard drive should change to orange or red, but all the hard drive lights on the server are green. I think the problem is related to the stability of XCP-ng.

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                        • olivierlambertO Online
                          olivierlambert Vates 🪐 Co-Founder CEO
                          last edited by

                          XCP-ng is rock stable. We have (and Citrix does too) many many automated test for such basic operations. So you clearly have an issue somewhere triggering that problem.

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                          • O Offline
                            ohthisis @olivierlambert
                            last edited by

                            @olivierlambert Where? How to find it? As you can see, I only have 4 virtual machines on the XCP-ng host.

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                            • olivierlambertO Online
                              olivierlambert Vates 🪐 Co-Founder CEO
                              last edited by

                              Starting with the documentation is a good thing: https://docs.xcp-ng.org/troubleshooting/

                              This will give you (and us) hints on what's going on 🙂

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