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    Testing ZFS with XCP-ng

    Scheduled Pinned Locked Moved Development
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    • nraynaudN
      nraynaud XCP-ng Team
      last edited by

      @borzel > The error is often in the Settings->Logs panel in XO in this case

      borzelB 1 Reply Last reply
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      • borzelB
        borzel XCP-ng Center Team @nraynaud
        last edited by

        @nraynaud no, it's as empty as it could be 😞

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        • borzelB
          borzel XCP-ng Center Team
          last edited by

          I found something in /var/log/xensource.log (used tail -f /var/log/xensource.log | grep -i 'error')

          Aug 14 23:19:10 hw xapi: [error|hw|63005 INET :::80|[XO] VDI Export R:3001f7e5aa17|vhd_tool_wrapper] vhd-tool failed, returning VDI_IO_ERROR
Aug 14 23:19:10 hw xapi: [error|hw|63005 INET :::80|[XO] VDI Export R:3001f7e5aa17|vhd_tool_wrapper] vhd-tool output: vhd-tool: internal error, uncaught exception:#012          Unix.Unix_error(Unix.EINVAL, "open", "/var/run/sr-mount/9fc67ea3-c9b3-5e62-ecc3-7d1debf81744/6781ab7b-c475-4d72-a7d0-b2aeca2e81e3.vhd")#012          Raised at file "src/core/lwt.ml", line 3008, characters 20-29#012          Called from file "src/unix/lwt_main.ml", line 42, characters 8-18#012          Called from file "src/impl.ml", line 811, characters 4-23#012          Called from file "src/cmdliner_term.ml", line 27, characters 19-24#012          Called from file "src/cmdliner.ml", line 27, characters 27-34#012          Called from file "src/cmdliner.ml", line 106, characters 32-39
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] [XO] VDI Export R:3001f7e5aa17 failed with exception Server_error(VDI_IO_ERROR, [ Device I/O errors ])
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] Raised Server_error(VDI_IO_ERROR, [ Device I/O errors ])
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 1/13 xapi @ hw Raised at file ocaml/xapi/vhd_tool_wrapper.ml, line 59
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 2/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 3/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 4/13 xapi @ hw Called from file ocaml/xapi/export_raw_vdi.ml, line 47
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 5/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 6/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 7/13 xapi @ hw Called from file ocaml/xapi/export_raw_vdi.ml, line 54
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 8/13 xapi @ hw Called from file ocaml/xapi/export_raw_vdi.ml, line 65
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 9/13 xapi @ hw Called from file ocaml/xapi/server_helpers.ml, line 73
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 10/13 xapi @ hw Called from file ocaml/xapi/server_helpers.ml, line 91
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 11/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 12/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace] 13/13 xapi @ hw Called from file lib/backtrace.ml, line 177
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:315adbf2ec6c|backtrace]
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] VDI.export_raw_vdi D:315adbf2ec6c failed with exception Server_error(VDI_IO_ERROR, [ Device I/O errors ])
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] Raised Server_error(VDI_IO_ERROR, [ Device I/O errors ])
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 1/13 xapi @ hw Raised at file lib/debug.ml, line 187
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 2/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 3/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 4/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 5/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 6/13 xapi @ hw Called from file ocaml/xapi/xapi_http.ml, line 185
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 7/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 8/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 9/13 xapi @ hw Called from file ocaml/xapi/server_helpers.ml, line 73
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 10/13 xapi @ hw Called from file ocaml/xapi/server_helpers.ml, line 91
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 11/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 22
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 12/13 xapi @ hw Called from file lib/xapi-stdext-pervasives/pervasiveext.ml, line 26
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace] 13/13 xapi @ hw Called from file lib/backtrace.ml, line 177
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80|VDI.export_raw_vdi D:fc8d0f58f1be|backtrace]
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80||backtrace] VDI.export_raw_vdi D:fc8d0f58f1be failed with exception Server_error(VDI_IO_ERROR, [ Device I/O errors ])
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80||backtrace] Raised Server_error(VDI_IO_ERROR, [ Device I/O errors ])
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80||backtrace] 1/1 xapi @ hw Raised at file (Thread 63005 has no backtrace table. Was with_backtraces called?, line 0
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80||backtrace]
Aug 14 23:19:11 hw xapi: [error|hw|63005 INET :::80||xapi] Unhandled Api_errors.Server_error(VDI_IO_ERROR, [ Device I/O errors ])
          nraynaudN 1 Reply Last reply
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          • olivierlambertO
            olivierlambert Vates 🪐 Co-Founder CEO
            last edited by

            I'll try to run some tests on my side.

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            • stormiS
              stormi Vates 🪐 XCP-ng Team @borzel
              last edited by

              @borzel I'm not very familiar with github wikis, but I think you can do pull requests against the wiki.

              borzelB 1 Reply Last reply
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              • borzelB
                borzel XCP-ng Center Team @stormi
                last edited by

                @stormi wiki issue is allready solved 😉

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                • nraynaudN
                  nraynaud XCP-ng Team @borzel
                  last edited by

                  @borzel good catch, it's another O_DIRECT issue.

                  1 Reply Last reply
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                  • nraynaudN
                    nraynaud XCP-ng Team
                    last edited by

                    @borzel I am struggling to match the error lines in your log with a source code, can you tell me what version of vhd-tool you have installed please ? (yum info vhd-tool)

                    borzelB 1 Reply Last reply
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                    • borzelB
                      borzel XCP-ng Center Team @nraynaud
                      last edited by borzel

                      @nraynaud

                      # yum info vhd-tool
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Installed Packages
Name        : vhd-tool
Arch        : x86_64
Version     : 0.20.0
Release     : 4.2.xcp.el7.centos.extras
Size        : 40 M
Repo        : installed
From repo   : xcp-ng-extras
Summary     : Command-line tools for manipulating and
            : streaming .vhd format files
URL         : https://github.com/xapi-project/vhd-tool
License     : LGPL+linking exception
Description : Simple command-line tools for manipulating an
            : streaming .vhd format file.
                      1 Reply Last reply
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                      • nraynaudN
                        nraynaud XCP-ng Team
                        last edited by

                        Thanks,
                        I have found a suspected O_DIRECT here, the solution won't come quickly.

                        borzelB 1 Reply Last reply
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                        • S
                          SeyedGH
                          last edited by

                          Does this issue also have a role if you run glusterfs on top of zfs?
                          Or is it just directly on zfs.

                          Because i would want to runs glusterfs on top of zfs on a spearate server, and use glusterfs driver to connect to it.

                          Do i also have this issue then?

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                          • borzelB
                            borzel XCP-ng Center Team @nraynaud
                            last edited by

                            @nraynaud I just tested with an up-to-date XCP-ng 7.5 host, same failure

                            # yum info vhd-tool
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Installed Packages
Name        : vhd-tool
Arch        : x86_64
Version     : 0.20.0
Release     : 4.3.xcp.el7.centos
Size        : 40 M
Repo        : installed
From repo   : xcp-ng-updates
Summary     : Command-line tools for manipulating and streaming .vhd format files
URL         : https://github.com/xapi-project/vhd-tool
License     : LGPL+linking exception
Description : Simple command-line tools for manipulating and streaming .vhd format file.
                            1 Reply Last reply
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                            • nraynaudN
                              nraynaud XCP-ng Team
                              last edited by

                              I am till on the issue, the subject is way deeper than expected.

                              borzelB 1 Reply Last reply
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                              • borzelB
                                borzel XCP-ng Center Team @nraynaud
                                last edited by

                                @nraynaud take your time, no rush

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                                • borzelB
                                  borzel XCP-ng Center Team
                                  last edited by

                                  Just added the setup part to https://github.com/xcp-ng/xcp/wiki/ZFS-on-XCP-ng-7.5-and-later#setup

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                                  • stormiS
                                    stormi Vates 🪐 XCP-ng Team
                                    last edited by

                                    Thanks @borzel

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                                    • D
                                      dvdhngs
                                      last edited by

                                      Hello everybody! Newbie here, just 24h of xcp use, I was trying set Raid 10, but xcp only support Raid 1, so I'm trying now to set raidz, like on the document, I'm using 4 disks (500gb each), but I want to do Raid on this 4 disks (sda,sdb,sdc,sdd), so I can't? Need to be 6 disks? 2 raid 1 with xcp, and 4 raidz for other things?

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

                                        Hi,

                                        There is 2 different things:

                                        • soft RAID 1 support during install, using mdadm (the standard Linux software RAID mechanism)
                                        • ZFS support for storage repositories (where you store your VM disks)

                                        Regarding your use case, it depends. You can choose to install XCP-ng system without RAID and use only one disk, and the rest for ZFS SR. Or RAID1 for XCP-ng system, and the left disks for ZFS.

                                        D 1 Reply Last reply
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                                        • D
                                          dvdhngs @olivierlambert
                                          last edited by

                                          @olivierlambert
                                          Just to solve a doubt.... there is no way to install xcp-ng on software RAID 10, right?

                                          borzelB 1 Reply Last reply
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                                          • borzelB
                                            borzel XCP-ng Center Team @dvdhngs
                                            last edited by

                                            @dvdhngs

                                            install onto (mdadm/ZFS) RAID 10: no

                                            to use (mdadm/ZFS) RAID 10 as SR: yes, of course!

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