1. mir

    mir Well-Known Member
    Proxmox Subscriber

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    Please don't confuse zfsonlinux with ZFS. zfsonlinux is not feature complete with ZFS and in my book not ready for enterprise usages!
     
  2. Alessandro 123

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    Sure, but PVE is based on zfs on linux......

    So, saying that ZFS is much more secure than mdadm just because it has bitrot protection, is false.
    Between two scrubs, you can loose data.

    This doesn't happen with hw raid or mdadm because both trigger a rewrite in case of unreadable sector
     
  3. feldi

    feldi New Member

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    We don't use anymore hardware raid because of a lot of firmware issues.
    On other installation (no proxmox) we are using mdadm
    Because of this discussion we are trying to use zfs with proxmox.

    After a hour load test on proxmox V5.4.3 we got this error:
    May 12 11:17:24 serv1020 kernel: [419044.195091] INFO: task zvol:2398 blocked for more than 120 seconds.
    May 12 11:17:24 serv1020 kernel: [419044.195125] Tainted: P O 4.15.18-12-pve #1
    May 12 11:17:24 serv1020 kernel: [419044.195142] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    May 12 11:17:24 serv1020 kernel: [419044.195164] zvol D 0 2398 2 0x80000000
    ......
    And the zfs is dead.

    Sorry to say that, but zfs is not ready for production use....
     
  4. LnxBil

    LnxBil Well-Known Member

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    One zvol is hanging. This was a bug in previous versions I also ran into.
     
  5. alexskysilk

    alexskysilk Active Member

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    It would be instructive to look at the 5 minutes prior to those messages. its possible (likely) that there is an underlying memory or storage fault.
     
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