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    ZFS with ESXi SCSI interface

    Scheduled Pinned Locked Moved 2.4 Development Snapshots
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    • P Offline
      Peen
      last edited by

      Hello

      Decided to join in on the beta fun and update to 2.4+.

      I run ESXi with pfSense as my router, and some other servers on ESXi.

      I did a reinstall of pfSense to start fresh with ZFS and now I have an issue with errors I get with the control set as LSI Logic Parallel and SAS.

      I can get it to go away if I switch to SATA but I prefer to run it as SAS.

      There was also a command that disables UNMAP that gets rid of the error "sysctl kern.cam.da.1.delete_method=DISABLE" but eventually pfsense will lock up with or without the error when on SCSI. Not only that but UNMAP disable doesn't seem to stick on reboots. And as far as I know, disabling UNMAP is the same as disabling trim for SSD's.

      Also was going to try thick provisioning of disks but that's a lot of work right now.

      Anyone else experience something like this?

      System Specs:
      Dell PowerEdge T130
      Xeon E3-1230-V5
      8GB ECC
      Seagate SSD 600 Pro 256GB
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      Errors.JPG_thumb

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      • P Offline
        Peen
        last edited by

        I seemed to have fixed it by using thick provisioning eager zeros instead of thin.

        There doesn't seem to be a way to "inflate" the drives in ESXi 6.5 web interface to, so I just deleted VM and started over.

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        • R Offline
          router_wang
          last edited by

          Added bonus, try adding or removing NIC's after installation and the PFsense VM will no longer finish booting. Good times.

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          • johnpozJ Offline
            johnpoz LAYER 8 Global Moderator
            last edited by

            What exactly is the advantage here of zfs on a VM?  When clearly you only have the 1 physical disk for data store..

            I am running 2.4 beta on esxi 6.5 – I just don't see the point of using zfs on the vm?

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 25.07.1 | Lab VMs 2.8, 25.07.1

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            • ? This user is from outside of this forum
              Guest
              last edited by

              Run ZFS on the hypervisor, it's useful for hardware it runs on, not for virtual machines. You can't 'fix' anything from the VM side if the hypervisor storage backend does crappy shit.

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              • johnpozJ Offline
                johnpoz LAYER 8 Global Moderator
                last edited by

                Agreed you could run zfs if your hypervisor supports it.. That is not what the OP is doing..

                An intelligent man is sometimes forced to be drunk to spend time with his fools
                If you get confused: Listen to the Music Play
                Please don't Chat/PM me for help, unless mod related
                SG-4860 25.07.1 | Lab VMs 2.8, 25.07.1

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