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    ZFS Performance drop drastically after upgrade

    Finally, we prepare to divide 12 hdd to two raidz. Before our new machine is well-done, I will try to figure out this question firstly. Slow read/write speed will waste lots of time to transfer old data to new machine.
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    ZFS Performance drop drastically after upgrade

    Thanks! Yes. But stream speed should be much faster than single hdd. I'm sorry that I don't have pmx5.x test for you. It is somehow careless and out of expectation for me. The regular write/read speed is about 300MB/s~400MB/s(even faster) before upgrade. With more internet research, I agree...
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    ZFS Performance drop drastically after upgrade

    I'm happy to upgrade Proxmox6 a month ago(Feb/20), however ZFS IO delay increase higher and higher. I bench zpool rpool with fio, sequential write only get IOPS=28, BW=115KiB/s. Due to cache, sequential read is IOPS=206k, BW=806MiB/s. But it only get about 30~100MB/s to download older files from...
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    Booting error with zfs pool after Proxmox upgrade from 5.4 to 6.1

    After upgrading to pve6, I only trouble in "Can't import rpool" in kernel 4.15.19 . But kernel 5.3.18 can boot normally.
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    Switch to EFI from Legacy during upgrade 5 to 6

    Thanks for you kindly reply, I will upgrade to pve6 later.
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    Switch to EFI from Legacy during upgrade 5 to 6

    Hi, eveyone! I'm not sure if and how I can switch from legacy to UEFI boot when uprage to pve6 in detail. It is excited for the support of UEFI boot on ZFS in pve6! Because I have to boot grub from external usb disk manuly each time, grub on ZFS disks only run in fresh installtion for a short...

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