Search results

  1. N

    Yet another "ZFS on HW-RAID" Thread (with benchmarks)

    How HWRAID protect from data distortion or bit rot ?
  2. N

    RaidZ1 performance ZFS on host vs VM

    I start this software #top -f -F 1 And then with "L" I change to see all disks and CPU. In the benchmark time you can see disk activity and you can compare do all disk are busy equally and what is CPU activity.
  3. N

    Howto remove disk from ZFS

    ZFS was not designed to allow remove disk. It is very complex system. Yes you can remove disk from the mirror. Maybe one day it will be possible.
  4. N

    Howto remove disk from ZFS

    You cannot remove disk in your situation right now. Plan how to backup your data and recreate ZFS.
  5. N

    RaidZ1 performance ZFS on host vs VM

    ZFS is very complex system. It is COW system. If you don't care compression, encryption, snapshot, data integrity then use old file systems. Use #atop to see CPU and disk usage. Maybe it will show something interesting.
  6. N

    Howto remove disk from ZFS

    Backup your data and recreate ZFS
  7. N

    RaidZ1 performance ZFS on host vs VM

    ZFS flush data in sync mode. It will wait until slowest disk finish write and then it will push another batch to write. And of course all metadata / transaction updates.
  8. N

    VPS Hosting providers - why no zfs ?

    If RAM is too expenses then don't use ZFS
  9. N

    VPS Hosting providers - why no zfs ?

    I did not find my talk in #IRC about ARC problem but I found the same situation mentioned here - https://github.com/openzfs/zfs/discussions/11676 It is good if they fixed it.
  10. N

    VPS Hosting providers - why no zfs ?

    ARC min and max should be not equal, max should be min+1, or min = max-1 Otherwise it will not limit
  11. N

    RaidZ1 performance ZFS on host vs VM

    If you want to speed up write you can set up sync=disabled But keep in mind you can lose some data in the power outage as of VM look here - https://kb.blockbridge.com/technote/proxmox-optimizing-windows-server/part-2.html
  12. N

    ghostly reboot at midnight

    Server is running for 19 days without random reboot. I changed network card to Intel 10GB and speeded CPU cooler. One reason in my mind was CPU temp spike.
  13. N

    USB3 passthrough to vm with 10G

    I'm curious, have you tried speed test?
  14. N

    HBA card borked or am I an idiot?

    Try to add mpt3sas.max_queue_depth=10000 to your kernel boot line in /etc/default/grub or /etc/kernel/cmdline
  15. N

    How to mount ZFS Install on Ubuntu Live to access Proxmox install files?

    You can download deb directly - http://ftp.no.debian.org/debian/pool/main/d/debsums/debsums_3.0.2.1_all.deb Using Live distro you can mount rpool and then bind mount /dev /sys /proc , chroot and use it as normal OS. In that environment you can install debsums, look at files and do changes.
  16. N

    How to mount ZFS Install on Ubuntu Live to access Proxmox install files?

    It should make no problem to install but If you are struggling you can download directly - https://packages.debian.org/bookworm/all/debsums/download
  17. N

    Yet Another "Poor ZFS performance issue"

    Mixing different performance disks will lower your all disk performance to the lowest disk performance.
  18. N

    Lessen Scrub Impact on ZFS Storage

    https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Module%20Parameters.html#scrub
  19. N

    How to mount ZFS Install on Ubuntu Live to access Proxmox install files?

    I would give a shot with #debsums for some curiosity
  20. N

    Storage - how to do it right?

    If you want to have auto healing using single disk then you have to set copies more than 1

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