3 Replies Latest reply on Dec 24, 2015 6:15 AM by srodenburg

    vSAN 6.1 and h LSI 9240-8I

    malefik Enthusiast

      Hello everybody!

      Can I use the LSI 9240-8I with vSAN 6.1? He is not in the list of interoperability VMware vSAN, but is compatible with vSphere 6.0.

      Any ideas?

        • 1. Re: vSAN 6.1 and h LSI 9240-8I
          zdickinson Expert

          I think you have your answer already.  It might work, but would not be officially supported.   Moving from 5.5 to 6, it was frustrating at which the rate hardware was put on the HCL.  I expect it to be slow going forward as well.  Thank you, Zach.

          • 2. Re: vSAN 6.1 and h LSI 9240-8I
            malefik Enthusiast

            Actually, I'm more interested in the practical problems that I will have. For example - "Handling of Problematic Disks" ( http://cormachogan.com/2015/09/22/vsan-6-1-new-feature-problematic-disk-handling/ )

            Yes, I can to fix THIS problem, but similar to what you need to be more prepared?

            Thank you, Zach.

            • 3. Re: vSAN 6.1 and h LSI 9240-8I
              srodenburg Hot Shot
              vExpert

              very simple. If the controller has a low queue-depth (which I think is the case here) then your VSAN will run fine as long as there is little IO going on. But as soon as there is a lot of IO, like during maintenance, evacuation of a host etc. etc., then the controllers wil not be able to handle it, causing massive latencies, in turn causing VSAN to totally shit itself, VM's becoming unresponsive and the whole nine yards. Just like cheap consumer-grade SATA SSD's and disks tend to do. They too cannot empty their own queues fast enough and cause massive stoppages and massive latency.

               

              My advice: don't do it. Get a couple of LSI  9702-8i HBA's. They are cheap, are supported and work very well. One note: nowadays these cards come with firmware v20 which is broken. You MUST downgrade to FW v19 to get outta trouble and be HCL compliant at the same time (FW v20 is not on the HCL for a reason...)