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    Citrix Hypervisor 8.0 landed

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

      https://www.citrix.com/blogs/2019/04/25/citrix-hypervisor-8-0-is-here/
      and
      https://docs.citrix.com/en-us/citrix-hypervisor/whats-new.html

      So this is the starting point of a LOT of things for us. We'll keep you posted on what's new regarding SMAPIv3 perfs, UEFI and everything else.

      Stay tuned!

      1 Reply Last reply Reply Quote 5
      • A Offline
        AllooTikeeChaat
        last edited by AllooTikeeChaat

        @olivierlambert .. Thanks for the headsup that XS8.0 has landed .. and now we must wait for XCP-NG 8 ... patiently.. hopefully not too long 😁 😎

        So the core changes:
        Kernel version: Linux 4.19
        Xen hypervisor version: 4.11
        Control domain operating system version: CentOS 7.5
        Guest UEFI boot
        Virtual disk images larger than 2 TiB on GFS2 SR
        Disk and memory snapshots for vGPU-enabled VM

        I'm concerned that the Citrix XS8.0 docs state support for "legacy" cpu's has been dropped but those same legacy CPUs are listed as supported on the HCL.

        The following processors are now supported in Citrix Hypervisor 8.0:

        Xeon 82xx/62xx/52xx/42xx/32xx CascadeLake-SP
        

        The following legacy processors are no longer supported in Citrix Hypervisor 8.0:

        Opteron 13xx Budapest
        Opteron 23xx/83xx Barcelona
        Opteron 23xx/83xx Shanghai
        Opteron 24xx/84xx Istanbul
        Opteron 41xx Lisbon
        Opteron 61xx Magny Cours
        Xeon 53xx Clovertown
        Xeon 54xx Harpertown
        Xeon 55xx Nehalem
        Xeon 56xx Westmere-EP
        Xeon 65xx/75xx Nehalem-EX
        Xeon 73xx Tigerton
        Xeon 74xx Dunnington
        

        The XS HCL which is showing it supports the following intel cpus

        0d588ddc-313b-429f-b79f-7f4c83c1e290-image.png

        The following legacy drivers will be deprecated:
        qla4xxx
        qla3xxx
        netxen_nic
        qlge
        qlcnic

        Citrix continues to support them in this release but they will be removed in a future Current Release.

        Can some one clarify or am I just misreading the docs ? If they've dropped support for cpu's such as the Xeon 56XX Westmere in XS8.0 can XCP-NG add those back in ? Both my XCP-NG hosts are running Intel Xeon 56XX CPU's and I know a lot of others are as well.

        The

        1 Reply Last reply Reply Quote 1
        • jcpt928J Offline
          jcpt928
          last edited by jcpt928

          So, any of these will not be supported in 8.x+.

          https://en.wikipedia.org/wiki/Xeon#Quad-Core_and_Multi-Core_Xeon

          I do have to chuckle a bit at the "experimental feature" in an "Official Release Version" from a company like Citrix. Perhaps they are feeling some pressure from XCP-ng. 😛

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

            If your screenshot is complete, I notice that they don't officially support the current Xeon E-21xx Series aka Coffee Lake.

            Not supported btw. doesn't mean they won't work, it's just that you fall back to "best effort" support, in case a problem occurs.

            jcpt928J 1 Reply Last reply Reply Quote 0
            • jcpt928J Offline
              jcpt928 @cg
              last edited by

              @cg I have a feeling that it may not actually even boot without messing with grub configuration if my experience serves me right.

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

                @jcpt928 regarding the old or the actual Xeons? 😉
                I may have the chance to test an HPE DL20 with E-21xx aka Coffee Lake in some weeks, when I have a plan on what to do with/for a customer (probably XCP-ng, test if USB-passthrough works with that dongles...).

                jcpt928J 1 Reply Last reply Reply Quote 0
                • jcpt928J Offline
                  jcpt928 @cg
                  last edited by

                  @cg Well, I know I have had to make grub modifications even up to E3 v2 CPUs, including as old as L, E, and X series 56xx CPUs using the latest version of XCP-ng. I have also had to do so on first through 3rd generation Core CPUs on a couple occasions. I imagine 8.0 will be even more limited - VMware takes the same, more aggressive, approach.

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

                    What can I help to make XCP-ng 8.0 available sooner?

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

                      @stormi got a nice TODO list right now, but I'm sure a lot of testing will be involved, so we'll keep you posted as soon we got a testable ISO, even if it's an alpha 😛

                      Adding mirrors could help to spread the load for netinstall or yum update when it's out too.

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

                        @cheese you can also have a look at our open issues at https://github.com/xcp-ng/xcp/issues and see if there's anything where you can help.

                        1 Reply Last reply Reply Quote 0
                        • xiscoX Offline
                          xisco
                          last edited by

                          I hope XCP-ng will support legacy CPUs as I have E5-24XX series servers 😞
                          I guess they will work fine but as they are not supported officially ...

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

                            Regarding the news of this version:

                            • Kernel version: Linux 4.19 ✔
                            • Xen hypervisor version: 4.11 ✔
                            • Control domain operating system version: CentOS 7.5 ✔
                            • Guest UEFI boot ❓ (only for Windows?)
                            • Virtual disk images larger than 2 TiB on GFS2 SR ❓ (already there before, SMAPIv3/qcow2, I don't see the point?)
                            • Disk and memory snapshots for vGPU-enabled VM ❓ (hard to test here)

                            Note that it could have been Xen 4.12 or CentOS 7.6, but still, it's far more recent than the content of 7.6! 🙂

                            We'll see if we can bundle a Xen 4.12 in experimental repo in the future, but we know that the ABI breaks so we'll need a more recent XAPI too, which can be difficult and require a loads of tests anyway.

                            About UEFI: it's not completely Open Source, but the license inside said we can redistribute it. However, we'd like to have something really open, ie with the sources. So we'll see.

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

                              @xisco I suppose it's only meant in terms of Citrix support and not the fact "it doesn't work". Note that if it works, we (via XCP-ng Pro support) will support it and do our best to assist if you have a problem.

                              1 Reply Last reply Reply Quote 2
                              • R Offline
                                r1 XCP-ng Team
                                last edited by

                                @olivierlambert said in Citrix Hypervisor 8.0 landed:

                                Virtual disk images larger than 2 TiB on GFS2 SR (already there before, SMAPIv3/qcow2, I don't see the point?)

                                Is there a real implementation of SMAPIv3 that people can use today (via XAPI)? Or it is going to be released in 8.0?

                                VHD (NFS, EXT, LVM, LVMoISCSI, LVMoHBA) has 2TiB restrictions. I'm sure community will benefit from larger than 2TiB virtual disks on these SR types.

                                I don't think GFS2 will be full open source and available to all.

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

                                  GFS2 is using SMAPIv3 since 7.5. I wonder how they can sell it due to the very very poor performances (it was catastrophic in 7.5). But as you said, the Citrix implementation isn't Open Source.

                                  We made some tests and we managed to make ext4 working on SMAPIv3. However, perfs were so low that we waited for a new release (also because some part of SMAPIv3 are Open Source BUT we don't have access to the dev branch).

                                  We started to make bench on latest Citrix release, if we got decent perfs, then expect to have first drivers soon 🙂 However, this will be considered still experimental because you have a lot restriction: migration to legacy SR, no delta etc.

                                  E 1 Reply Last reply Reply Quote 1
                                  • E Offline
                                    ebrainte @olivierlambert
                                    last edited by

                                    @olivierlambert So you are saying that in the future releases we may have ext4 support over iSCSI? (so real VHD files instead LVM over iSCSI)?

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

                                      No, I never said that: don't mix SMAPIv3 and shared block storage. SMAPIv3 is "just" a brand new storage stack allowing far more flexibility due to its architecture 🙂

                                      Sharing block on multiple host is a complete another story. You can use LVM (but you'll end in a thick pro storage), or a shared filesystem, like GFS2/OCFS, + a lock manager (corosync is used by Citrix)

                                      Having ext4 on top of iSCSI is easy… as long as you have one host. Because when it's more, ext4 isn't a "cluster aware" filesystem.

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

                                        UEEEEEEEEEEEEEEE Kernel 4.19????
                                        Wow! This means that this kernel already support natively all the client feature set of Ceph.
                                        This means no feature downgrade server side.

                                        This means a HUGE step forward.
                                        I'm about to take over again the project this month.
                                        Very good news in the air!

                                        1 Reply Last reply Reply Quote 0
                                        • 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
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