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    So I really need to test HALizard

    IT Discussion
    xenserver 6.5 ha-lizard xen xenserver virtualization
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    • DustinB3403D
      DustinB3403
      last edited by scottalanmiller

      So I really need a way to test HALizard, and become comfortable with the setup of it for my Xenserver setup (in the future) as it appears we are likely going to be going forward with my proposal (which is awesome) but still has me nervous.

      I'm thinking I'm going to tear down my current home lab and test with that. Which kind of sucks, but at least it gives me some experience with it.

      If anyone has any pointers, like how to install DRBD on XenServer 6.5 that would be a cool way to help me get started on this.

      Here's the list of requirements for HALizard

      Requirements

      • XCP version 1.6 or XenServer version 6.1/6.2/6.5
      • DRBD Version 8.3 or 8.4
      • iSCSI target – TGT
      • Pool HA – Open Source HA-Lizard 1.6.41.4 or newer

      I have a feeling I'll likely be the person who has to get everything configured (even though I'm pushing for support) so any guidance would be a godsend.

      Thanks ML.it community.

      1 Reply Last reply Reply Quote 2
      • scottalanmillerS
        scottalanmiller
        last edited by

        Doesn't HA-Lizard do the DRBD installation for you?

        1 Reply Last reply Reply Quote 2
        • DustinB3403D
          DustinB3403
          last edited by

          Here is the installation and reference guide from HALizard that I'll be following.

          Here at post #350 appears to be an active and simple to follow guide to installing and configuring HALizard.

          1 Reply Last reply Reply Quote 1
          • DustinB3403D
            DustinB3403
            last edited by

            @scottalanmiller Just doing some research on it now, figured I'd put the feelers out there for pointers.

            🙂

            1 Reply Last reply Reply Quote 1
            • DustinB3403D
              DustinB3403
              last edited by

              I've got a beater server at my house that I'll be testing this with today once I get out of the office so I'll hopefully have some pointers for people in a bit.

              1 Reply Last reply Reply Quote 1
              • DustinB3403D
                DustinB3403
                last edited by

                Calling @halizard to see if you might have a more recent guide then what I was able to find here. which is almost a year old.

                H 1 Reply Last reply Reply Quote 0
                • H
                  halizard @DustinB3403
                  last edited by

                  @DustinB3403
                  The HA-Lizard project is made up of three applications:

                  HA-Lizard - this is a complete high availability framework (replacement for XenServer HA feature). It does not require any other applications to work. Documentation for this component is available here:
                  http://halizard.com/images/pdf/HA-Lizard_1.8.7.pdf

                  iSCSI-HA - this is a storage management and storage high availability application. It is specifically written to work in a 2-node xenserver environment and allows you to utilize local storage in a high availability pool without any restrictions (meaning - live migration, etc.. will function as if you had an external SAN). It relies on DRBD for replication. Think of it as a high availability iSCSI SAN collapsed into dom0. This is the document you were referring to in your post:
                  http://halizard.com/images/pdf/iscsi-ha_1.5_final.pdf

                  noSAN Installer script - this is a script which automates the entire installation process of building a 2-node HA pool.
                  A video tutorial is available which describes the entire process here:
                  Youtube Video

                  With all of that said - you have a few options when it comes to installation:

                  1- if you only need HA - then only install HA-Lizard and follow the HA-Lizard installation and reference guide. HA will work with any number of hosts in a pool - even 1 (in a 1 node pool - HA-Lizard acts as a VM watchdog)

                  2- If you are looking to build a 2-node HA pool with local storage (most of our users are doing this), then you will need to install both HA-Lizard AND iSCSI-HA. You can do this in one of 2 ways:

                  • the hard way - follow our reference design for a 2 node HA pool which provides step-by-step instructions. This option is preferred for users that want to understand how the entire solution works. The reference design can be downloaded here:
                    http://halizard.com/images/pdf/iscsi-ha 2-node cluster howto_1.5_final.pdf

                  • the easy way - run the noSAN installer script on a fresh pair of xenserver hosts and everything will be installed for you automatically.
                    This installer performs ALL of the installation steps described in the reference design guide.

                  I hope this helps. Please post any questions or issues on the HA-Lizard forum which is monitored regularly.

                  DustinB3403D 1 Reply Last reply Reply Quote 2
                  • DustinB3403D
                    DustinB3403 @halizard
                    last edited by

                    @halizard You don't happen to have a link to the easier HA-Lizard AND iSCSI-HA installation script handy do you?

                    H 1 Reply Last reply Reply Quote 0
                    • H
                      halizard @DustinB3403
                      last edited by

                      @DustinB3403
                      here you go - there are some prerequisites. The installer will not run unless you first:

                      • join 2 servers to a pool
                      • create a dedicated replication link (ideally 2 bonded Ethernet ports)
                      • pool must have internet connectivity for installer to work

                      http://halizard.org/release/noSAN-combined/halizard_nosan_installer_1.4.7

                      DustinB3403D 1 Reply Last reply Reply Quote 3
                      • DustinB3403D
                        DustinB3403 @halizard
                        last edited by

                        @halizard Awesome, thank you and your group a crap ton for me.

                        Gives me stuff to work on!

                        1 Reply Last reply Reply Quote 2
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