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    XCP host rebooted: VM's wont start anymore :-(

    Scheduled Pinned Locked Moved Xen Orchestra
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    • olivierlambertO Online
      olivierlambert Vates 🪐 Co-Founder CEO
      last edited by

      It's hard to assist without knowing more. It's one host only? (not in a pool with others?). Only local storage?

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      • P Offline
        prensel @prensel
        last edited by

        @prensel Oh and even reinstalling XOA doesnt work anymore also. bash -c "$(curl -sS https://xoa.io/deploy)" returns without errors but also without creating the XOA

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        • P Offline
          prensel @olivierlambert
          last edited by

          @olivierlambert I had two hosts running once but one (xcp-ng-01) was switched off long before this happened. The only host running now is the xcp and didnt gave any (known) issues before,,

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          • P Offline
            prensel @prensel
            last edited by

            @prensel said in XCP host rebooted: VM's wont start anymore 😞:

            @prensel Oh and even reinstalling XOA doesnt work anymore also. bash -c "$(curl -sS https://xoa.io/deploy)" returns without errors but also without creating the XOA

            [15:53 xcp ~]# bash -c "$(curl -sS https://xoa.io/deploy)"

            Welcome to the XOA auto-deploy script!

            Network settings:
            IP address? [dhcp]

            Your XOA will be started using DHCP

            Importing XOA VM...
            [15:59 xcp ~]#

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

              In your host, can you do a xe host-list please?

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              • P Offline
                prensel @olivierlambert
                last edited by olivierlambert

                @olivierlambert

                [16:00 xcp ~]# xe host-list
                uuid ( RO)                : f4d5a20d-e7f3-4e62-8804-e2caa6922a43
                          name-label ( RW): xcp
                    name-description ( RW): 
                
                
                uuid ( RO)                : 40974c9e-11c7-4925-a1ea-26496297084e
                          name-label ( RW): xcp-ng-01
                    name-description ( RW): 
                
                
                [16:01 xcp ~]#
                
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                • olivierlambertO Online
                  olivierlambert Vates 🪐 Co-Founder CEO
                  last edited by

                  1. Please use Markdown syntax over your console copy/paste, I edited your post.
                  2. You need to have the other host online if you want to boot the VM in question.
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                  • P Offline
                    prensel @olivierlambert
                    last edited by

                    @olivierlambert Ah ok, sorry about the markup.
                    I cant restart the other host back online because it doesnt exist anymore.

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

                      So why not removing it from the pool then? It's not meant at all to run with a "ghost" machine in a pool.

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                      • P Offline
                        prensel @olivierlambert
                        last edited by

                        @olivierlambert I just did remove the host but when trying to restart the VM it stiil complains about the SR missing. How can I change this setting for this VM ?

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

                          Is this SR available?

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                          • P Offline
                            prensel @olivierlambert
                            last edited by

                            @olivierlambert [16:41 xcp ~]

                            # xe host-list
                            uuid ( RO)                : f4d5a20d-e7f3-4e62-8804-e2caa6922a43
                                      name-label ( RW): xcp
                                name-description ( RW): 
                            
                            
                            [16:41 xcp ~]#
                            
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                            • P Offline
                              prensel @olivierlambert
                              last edited by

                              @olivierlambert

                              [16:44 xcp ~]# xe vm-start uuid=143f7b5b-b252-346c-5cc0-3027a7dba627
                              There are no suitable hosts to start this VM on.
                              The following table provides per-host reasons for why the VM could not be started:
                              
                              xcp    : Cannot start here [VM requires access to SR: e1fb6d59-93c5-72bf-a018-184dd3ea3643 (Local storage)]
                              
                              
                              There were no servers available to complete the specified operation.
                              [16:44 xcp ~]# xe sr-list
                              uuid ( RO)                : e1fb6d59-93c5-72bf-a018-184dd3ea3643
                                        name-label ( RW): Local storage
                                  name-description ( RW): 
                                              host ( RO): xcp
                                              type ( RO): ext
                                      content-type ( RO): user
                              
                              
                              uuid ( RO)                : d58928fe-4a00-3fb0-36c3-8437e3417296
                                        name-label ( RW): Local storage
                                  name-description ( RW): 
                                              host ( RO): <not in database>
                                              type ( RO): ext
                                      content-type ( RO): user
                              
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                              • P Offline
                                prensel @olivierlambert
                                last edited by

                                @olivierlambert

                                [16:47 xcp ~]# xe diagnostic-vm-status uuid=143f7b5b-b252-346c-5cc0-3027a7dba627
                                uuid ( RO)              : 143f7b5b-b252-346c-5cc0-3027a7dba627
                                        name-label ( RW): testserver
                                       power-state ( RO): halted
                                    possible-hosts ( RO): 
                                
                                
                                Checking to see whether disks are attachable
                                uuid ( RO)            : dd90f85b-755b-9227-aba7-8583e4b8544f
                                        vdi-uuid ( RO): <not in database>
                                           empty ( RO): true
                                          device ( RO): xvdd
                                      userdevice ( RW): 3
                                            mode ( RW): RO
                                            type ( RW): CD
                                      attachable ( RO): true
                                    storage-lock ( RO): false
                                
                                
                                uuid ( RO)            : 23a51757-9fec-ab0b-a2d4-2790c8a4a63a
                                        vdi-uuid ( RO): 06f7760e-157f-4a18-83fe-ba48db06a5ef
                                           empty ( RO): false
                                          device ( RO): xvda
                                      userdevice ( RW): 0
                                            mode ( RW): RW
                                            type ( RW): Disk
                                      attachable ( RO): true
                                    storage-lock ( RO): false
                                
                                
                                Checking to see whether VM can boot on each host
                                xcp    : Cannot start here [VM requires access to SR: e1fb6d59-93c5-72bf-a018-184dd3ea3643 (Local storage)]
                                
                                
                                VM is not agile because: VM requires access to non-shared SR: e1fb6d59-93c5-72bf-a018-184dd3ea3643 (Local storage). SR must both be marked as shared and a properly configured PBD must be plugged-in on every host
                                
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                                • olivierlambertO Online
                                  olivierlambert Vates 🪐 Co-Founder CEO
                                  last edited by

                                  So you want to start a VM that has a disk on a host which you removed.

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                                  • P Offline
                                    prensel @olivierlambert
                                    last edited by

                                    @olivierlambert
                                    I can see the vhd file on the local disk of this host and it has always been there afaik. The other host wasnt used for this VM. And the VM was running fine without the other host being present for several months. So I assume the disk on this host ?

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

                                      Well, you can display the VM disk list with a xe vm-disk-list uuid=<VM UUID>.

                                      Then you can find info on those disks with, for each, a xe vdi-param-list uuid=<VDI UUID>.

                                      Then, you'll see on which SR are each disks, and you'll understand why the VM can't boot.

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                                      • P Offline
                                        prensel @olivierlambert
                                        last edited by

                                        @olivierlambert

                                        I'm trying to understand how it is possible that this vm has been running for a few months without the other host being present ? Where would have the vhd file been stored ?
                                        I have a copy of the vhd file here, can I create a new vm with that ?

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                                        • P Offline
                                          prensel @olivierlambert
                                          last edited by olivierlambert

                                          @olivierlambert

                                          [17:22 xcp ~]# xe vdi-param-list uuid=06f7760e-157f-4a18-83fe-ba48db06a5ef
                                          uuid ( RO)                    : 06f7760e-157f-4a18-83fe-ba48db06a5ef
                                                        name-label ( RW): mailserver
                                                  name-description ( RW): Created by XO
                                                     is-a-snapshot ( RO): false
                                                       snapshot-of ( RO): <not in database>
                                                         snapshots ( RO): 
                                                     snapshot-time ( RO): 19700101T00:00:00Z
                                                allowed-operations (SRO): generate_config; update; forget; destroy; snapshot; copy; clone
                                                current-operations (SRO): 
                                                           sr-uuid ( RO): e1fb6d59-93c5-72bf-a018-184dd3ea3643
                                                     sr-name-label ( RO): Local storage
                                          

                                          It says the sr-uuid is e1fb6d59-93c5-72bf-a018-184dd3ea3643, this my local storage SR of the current host ??

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

                                            Your mailserver disk is using SR e1fb6d59-93c5-72bf-a018-184dd3ea3643. This SR seems to belong to host ( RO): xcp, not xcp-ng-01.

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