Search results for query: ZFS

  1. powersupport

    Proxmox Backup Server 4.1.6 Random Hang Issue

    ...suggest: Check logs using journalctl -xe and dmesg -T for any disk or I/O errors Monitor I/O wait (%wa) using top during the issue If using ZFS, check zpool status for any problems Try reducing the number of concurrent backup jobs Most likely this is due to storage performance or latency...
  2. A

    zfs Pool degraded

    Hallo Forum, ich habe ein einem zfs pool eine defekte Platte die ich austauschen will. Hat das jemand schon mal getan unter Proxmox? Wie gehe ich am besten vor? Es wäre nett wenn mir jemand hilft die richtigen Schritte zu tun damit ich kein Datenverlust habe
  3. T

    [SOLVED] No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync

    ...status Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace.. E: /etc/kernel/proxmox-boot-uuids does not exist. The zfs pool isn't the boot disk it's just a mirrored pool for vms. This is my disk setup - /dev/sda is the boot disk The only reason I noticed was the 2...
  4. A

    First Proxmox homelab build - sanity check on hardware, service layout, and storage

    ...Depending on your host file system and how you're differentiating between for-backup and not-for-backup datasets, and the destination filesystem- zfs snapshot/send is likely the absolute quickest and most efficient method; for basic file based backups probably any that you mentioned would...
  5. B

    VM /mnt Data Erroneously Landing on rpool

    The problem isn't that the my directories aren't in the correct location - I've fixed that (I think). My problem is that rpool thinks it is full when I cannot find anything there.
  6. U

    Random IO Error - Windows Server 2025

    ...(maybe once every few months or so) on our systems as well. VM fails with `io-error` and has to be powered off. Similar to OP: We have a ZFS directory with qcow2 images on them. Many TBs of space available. No errors on journalctl, dmesg, zpool status. After rebooting the box, it doesn't...
  7. D

    CEPH Configuration verification

    ...cluster effectively operates with a single copy of the data, which significantly reduces reliability. Given this, it might be more practical to consider alternative approaches. For example, you could accept some RPO and use ZFS replication, or introduce a NAS and use shared storage such as NFS.
  8. H

    First Proxmox homelab build - sanity check on hardware, service layout, and storage

    ...the OS mirror (read intensive is fine, mostly logs) and S4610/SM883/Micron 5300 MAX for the VM mirror (mixed use, around 3 DWPD, which is where ZFS write amplification actually bites). Thanks again for the detailed input. Fair point on paper, but thinking through the actual usage pattern...
  9. T

    [SOLVED] No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync

    Hi just caught this message after running an adhoc update Setting up zfsutils-linux (2.4.1-pve1) ... Installing new version of config file /etc/default/zfs ... Installing new version of config file /etc/zfs/zfs-functions ... Setting up zfs-initramfs (2.4.1-pve1) ... Setting up corosync...
  10. J

    First Proxmox homelab build - sanity check on hardware, service layout, and storage

    ...to link the thread where lnxbil described his way to use special_small_blocks, so I edited my post to link it: https://forum.proxmox.com/threads/zfs-metadata-special-device.129031/post-699290 Please note that a dedicated OS mirror is helpful but not always needed. It can also be a valid...
  11. Daniel-Doggy

    Proxmox and ZFS Storage

    ...loss and total disks as mirrors are basicly raid 1.) This is due to both the complexity it brings to users who are new or less experienced to ZFS and zRaid 5 will also eat non enterprise (and to a lesser extent enterprise) disks for lunch. This is due to zRaid 5 adding a lot of write...
  12. leesteken

    Proxmox and ZFS Storage

    ...so unless you want to store other stuff there like ISOs, templates and/or VMs, 2TB sounds like overkill. As mentioned before, setup Proxmox's ZFS replication to keeps the various nodes relatively up to date for redundancy. This is independent of the ZFS configuration for each Proxmox node...
  13. J

    [SOLVED] Proxmox 9 - IO error ZFS

    ...a new VM. Nothing helped. We can confirm, after we disabled, everything was fine and we was able to import our Data without any issue to our Mysql-Database. zfs set direct=disabled data But what is, if the Host reboot? How we can set it permanent? Thanks. Also we should report it as Bug?
  14. H

    First Proxmox homelab build - sanity check on hardware, service layout, and storage

    Hi Johannes, thanks a lot for the detailed write-up - that actually clears up a lot for me. Good to know the ECC/ZFS thing isn't as dramatic as it's sometimes made out to be. I'll definitely keep the RAIDZ-for-VMs caveat in mind for later upgrades. That article was quite interesting! Good to...
  15. P

    RAIDZ-1 PBS Mismatched Disk Sizes

    ...PBS test server with 3 x 2TB disks and a single 1TB disk, with the idea that once my 4th 2TB disk arrives I would swap it out, at which point the ZFS would resilver and the pool would auto-expand to 6TB usable. I have this configured but during the setup when I attempt to proceed it gives me...
  16. F

    Proxmox and ZFS Storage

    ...on 3 different machines, but have failover between them, without shared storage (different locations on campus). I have read a lot about using ZFS for this, but I keep going down rabbit holes on what settings should be, and have read things about using mirrored vdevs instead of just the...
  17. B

    Hardware aus Zeiten von DDR3

    ...ich das. Damit gibts kein Filesystem auf Filesystem, wie bei einer VM, sondern PBS bekommt direkt zugriff auf einen pfad in einem der truenas-zfs-pools (bei mir ein eigener Pool nur für PBS). Läuft bisher (etwa 3 Monate) rund und performt auch ordentlich, allerdings verwende ich dieses...
  18. P

    snap shots Backup script

    ...hier nicht verstanden wird. Es ist ein generelles Konzept, das überhaupt nicht Proxmox-spezifisch ist und sich beispielsweise sehr gut mit zwei ZFS NAS Systemen umsetzen lässt. Aber es funktioniert nicht nur mit ZFS, sondern auch mit simplen Tools wie Rsync. Der Grund, warum man es in...
  19. Impact

    [SOLVED] Proxmox - VM io-error

    You generally want to use the ZFS storage type when you have a ZFS pool. The IO error can have a lot of reasons. Overprovisioning and then attempting to use it all might be one. You might be able to find relevant logs with something like journalctl -b0 -krp 0..5. Otherwise check node > System >...
  20. M

    [SOLVED] Proxmox - VM io-error

    ...Because the QCOW2 is the default format used when a new VM is created. We can convert it to RAW without problem. We just realized that the ZFS disks aren't in RAID. We'll be doing some tweaking to fix this. At the moment we cannot add an SSD or other disks. Which fs is the better for this...