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    Citrix Hypervisor 8.0 landed

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    65 Posts 20 Posters 34.9k Views 7 Watching
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    • olivierlambertO Offline
      olivierlambert Vates 🪐 Co-Founder CEO
      last edited by

      This will probably helps to connect to Ceph, however perfs level would be unknown 🙂

      K 1 Reply Last reply Reply Quote 0
      • M Offline
        maxcuttins
        last edited by

        I've see the @stormi to-do list.
        Seems very goal oriented.

        1 Reply Last reply Reply Quote 0
        • C Offline
          cg
          last edited by

          Link? 😆

          olivierlambertO 1 Reply Last reply Reply Quote 0
          • K Offline
            Kalloritis @olivierlambert
            last edited by

            @olivierlambert I would be willing to be a testing help for this. I have a few 6TB WD Golds I could throw each onto four older Fat Twin^2 nodes and do maybe passthrough for the OSD's (slightly esoteric and small but could give baselines if E5645's are still supported).

            Currently they're just "collecting dust" inside of a chassis and use to be part of a 6x6TB RAIDZ2 ZFS pool that was retired for a 10x10TB RAIDZ2 pool (general storage + endpoint backups).

            1 Reply Last reply Reply Quote 0
            • olivierlambertO Offline
              olivierlambert Vates 🪐 Co-Founder CEO @cg
              last edited by

              @cg https://github.com/xcp-ng/xcp/issues/180

              stormi created this issue in xcp-ng/xcp

              closed XCP-ng 8.0 (meta-issue) #180

              1 Reply Last reply Reply Quote 2
              • stormiS Offline
                stormi Vates 🪐 XCP-ng Team
                last edited by

                People are watching me, such honour and responsibility!

                M 1 Reply Last reply Reply Quote 1
                • M Offline
                  maxcuttins @stormi
                  last edited by maxcuttins

                  @stormi said in Citrix Hypervisor 8.0 landed:

                  People are watching me, such honour and responsibility!

                  I told you that people of the forum are "the watchmens".
                  It's even easier if you have subscribed the notification on GitHub on the project.
                  😆

                  donato_marcosD 1 Reply Last reply Reply Quote 1
                  • donato_marcosD Offline
                    donato_marcos @maxcuttins
                    last edited by

                    @maxcuttins Quis custodiet ipsos custodes?

                    @stormi Honor is ours

                    1 Reply Last reply Reply Quote 1
                    • antoniolfdacruzA Offline
                      antoniolfdacruz
                      last edited by

                      I also would like to be an alpha/beta tester. HP and Dell blades and assorted Dell servers.

                      Best regards.

                      1 Reply Last reply Reply Quote 0
                      • olivierlambertO Offline
                        olivierlambert Vates 🪐 Co-Founder CEO
                        last edited by

                        Be sure that as soon we got something to test, you'll be notified 😉

                        1 Reply Last reply Reply Quote 1
                        • D Offline
                          dredknight
                          last edited by

                          Hey all,

                          I am building a home lab and will be glad to test the new XCP with Cloudstack on top. Followed the repo!

                          1 Reply Last reply Reply Quote 1
                          • olivierlambertO Offline
                            olivierlambert Vates 🪐 Co-Founder CEO
                            last edited by

                            Great! We really need CloudStack testing too 🙂

                            1 Reply Last reply Reply Quote 0
                            • M Offline
                              maxcuttins
                              last edited by maxcuttins

                              I finish to test XenServer8 with Ceph.
                              It just works without patches.

                              • Installation of the needed package wouldn't try to update any kind of package of the original installation.
                              • Kernel is already higher enought to include higher RBD client.

                              So you can just mount RBD images manually with few easy steps.
                              I tested quickly the connection and performance were not very good (but I'm working in a nested virtualized environment).

                              I guess all the mess in order to setup the connect are finally over.

                              Now, what it's needed is to create a VHD on top of a RBD images.
                              Probably we can just fork the LVMoverISCSI plugin in order to accomplish last mile of connection.
                              However there are many alternative in order to complete this last step.

                              R 1 Reply Last reply Reply Quote 0
                              • olivierlambertO Offline
                                olivierlambert Vates 🪐 Co-Founder CEO
                                last edited by

                                Can you write few lines on how you did the initial steps? (so we can provide a SMAPIv3 driver for further testing)

                                M 1 Reply Last reply Reply Quote 0
                                • R Offline
                                  r1 XCP-ng Team @maxcuttins
                                  last edited by

                                  @maxcuttins You can always have LVM SR on that RBD image device. You need to whitelist /dev/rbd in lvm.conf though.

                                  I'll test once XCP-NG 8 is available.

                                  1 Reply Last reply Reply Quote 0
                                  • M Offline
                                    maxcuttins @olivierlambert
                                    last edited by maxcuttins

                                    @olivierlambert said in Citrix Hypervisor 8.0 landed:

                                    Can you write few lines on how you did the initial steps? (so we can provide a SMAPIv3 driver for further testing)

                                    Oh yess!
                                    In reality I already wrote yesterday in the wiki everything we know as today about integration with CEPH:
                                    https://github.com/xcp-ng/xcp/wiki/Ceph-on-XCP-ng-7.5-or-later

                                    But this was before my test on XenServer8.
                                    However the steps are exactly the same.
                                    I summarize here the steps (but they are explained better in the wiki):

                                    yum install epel-release -y --enablerepo=extras
                                    yum install centos-release-ceph-nautilus --enablerepo=extras
                                    yum install yum-plugin-priorities --enablerepo=base
                                    yum install ceph-common --enablerepo='base,extras,epel'
                                    

                                    And that's all.
                                    Since today we always needed to install other connector in order to use rbd.
                                    This mean no need for rbd-fuse (rbd over fuse), rbd-nbd (rbd over NBD), ceph-fuse (cephFS over Fuse). We can use the original rbd directly with kernel support.

                                    To map an image:

                                    Before you can connect you need then to just exchange keyrings in order to allow the client to connect.
                                    In order to connect to an image called mytestimage created on the pool XCP-Test-Pool.
                                    Map the block device:

                                    rbd map mytestimage --name client.admin -p XCP-Test-Pool
                                    

                                    Create the filesystem that you prefer on top:

                                    mkfs.ext4 -m0 /dev/rbd/XCP-Test-Pool/mytestimage
                                    

                                    And mount:

                                    mkdir /mnt-test-ceph
                                    mount /dev/rbd/XCP-Test-Pool/mytestimage  /mnt-test-ceph
                                    

                                    I'm gonna to write down all these passages in the WIKI as soon as XCP-8 is out.
                                    Now the hype for the next release is even more. 😍
                                    I'm gonna to stalking @stormi all days 😈

                                    M 1 Reply Last reply Reply Quote 0
                                    • M Offline
                                      maxcuttins @maxcuttins
                                      last edited by maxcuttins

                                      I throw down one of my xcp-host to setup a not-nested-virtualized xen-8 in order to test RBD speed. Performance are about 4x slower than they should be but at least it run almost like a standard local disk.

                                      dd if=/dev/zero of=./test.img bs=1G count=1 oflag=dsync
                                      1+0 records in
                                      1+0 records out
                                      1073741824 bytes (1.1 GB) copied, 1.86156 s, 577 MB/s
                                      
                                      C 1 Reply Last reply Reply Quote 0
                                      • P Offline
                                        Prilly
                                        last edited by

                                        Have anybody tried xcp 8.0 with the intel x56xx series cpu?

                                        why is support for this cpus dropped, are there any technical behind it or just that they are old and considerd Legacy?

                                        i would like to know if this cpus have been tried with this veriosn of xcp.

                                        borzelB akurzawaA 2 Replies Last reply Reply Quote 2
                                        • C Offline
                                          cg @maxcuttins
                                          last edited by

                                          @maxcuttins said in Citrix Hypervisor 8.0 landed:

                                          I throw down one of my xcp-host to setup a not-nested-virtualized xen-8 in order to test RBD speed. Performance are about 4x slower than they should be but at least it run almost like a standard local disk.

                                          dd if=/dev/zero of=./test.img bs=1G count=1 oflag=dsync
                                          1+0 records in
                                          1+0 records out
                                          1073741824 bytes (1.1 GB) copied, 1.86156 s, 577 MB/s
                                          

                                          1G is usually a really bad test, as pretty small things can influence the result massively.
                                          You should run tests with 10 or better 100 - if you can.
                                          That also diminishes influence of any caches (on source and target!).

                                          M 1 Reply Last reply Reply Quote 0
                                          • borzelB Offline
                                            borzel XCP-ng Center Team @Prilly
                                            last edited by borzel

                                            @Prilly XCP-ng 8.0 (the Host) is not released (even not an alpha or beta), I only released XCP-ng Center 8.0 (the Windows Client)

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