zfs

  1. SSD emulation on ZFS

    Hello, I am wondering if since we're using local ZFS for our VM storage, should we set all Hard Disks to "SSD emulation"? I know on Windows, this stops things like defrag from running, which kills CoW storage like ZFS. Does it do something similar on linux guests? Are there any other ZFS best...
  2. Cannot Live Migrate with "Discard" Set

    We are running Proxmox 6: root@kvm02-a-lax:~# pveversion -v proxmox-ve: 6.0-2 (running kernel: 5.0.21-4-pve) pve-manager: 6.0-11 (running version: 6.0-11/2140ef37) pve-kernel-helper: 6.0-11 pve-kernel-5.0: 6.0-10 pve-kernel-5.0.21-4-pve: 5.0.21-9 pve-kernel-5.0.15-1-pve: 5.0.15-1 Our OS is a...
  3. Benchmark-Request for ZFS 0.8 allocation classes

    Hi all, has anyone already tried out the new allocation classes with spinners and SSD for e.g. metadata and can give benchmark results? What about the Proxmox Staff, have you tried it yet? The interest may be huge if you consider that we saw 10+ threads this year alone with "slow ZFS"-related...
  4. [SOLVED] Snapshot for root dataset empty since 6.0

    Hello, We backup some folders on our hypervisor by doing a snapshot of the root dataset zfs snapshot rpool/ROOT/pve-1@borgWe could then backup the folder /.zfs/snapshot/borg/ which contained all of our files. The issue is that since version 6.0 this snapshot folder is now empty so I was...
  5. Local/Remote Snapshots of Physical PVE Host/Node (ZFS)?

    Hi There, I'm trying to figure out if there is an easy way to use the ZFS filesystem of the Physical PVE Node to make local/remote snapshots of the host filesystem? I know there is away to replicate local VM disks from local-zfs (Physical PVE Node 1) to local-zfs (Physical PVE Node 2) but...
  6. Proxmox 6 on home NAS - SLOOOWWWW

    I decided to test Proxmox 6 on my home PC where I installed 4 HD (8Tb) that I setup with RAIDZ1. From the start the speed of the raid set was just terrible but I managed to speed it up somewhat by using "zfs set sync=disabled rpool". Now I'm testing other methods to speed up the setup. Maybe...
  7. Samba services with windows restore previous versions

    Hi. I would like to use samba to share files to windows clients in an Active Directory environment. Also allow those clients to be able to use the "restore previous versions" from their windows machines. I may be able to use a container and bind mount a zfs dataset. It seems like a...
  8. SSD High SMART Raw Values

    Hi, We're running proxmox 6.0-4 on a couple of HP DL360ps, with HP 220 HBAs, and four Intel S3520 Series 960GB MLC SSDs in each. The four SSDs are in ZFS RAID10 for VMs to sit on, while we have two mirror ZFS 146GB 15K SAS drives for the OS. We're getting some uncomfortable feedback from the...
  9. VM on ZFS RAID on HDDs or on SSD, help?

    Hello everyone, i have question about my Proxmox VE. First details about my system: OS - Proxmox VE 6.0 updated Hardware: CPU - Ryzen 1700x, RAM - 32GB 3200 nonECC, SDD - nvme 512(system is on it +20% overprovision) SSD - SATA 3 256GB HDD - 2x2TB ZFS mirror lz4(for storage), HDD - 2x1TB ZFS...
  10. [SOLVED] Making zfs root mirror bootable (uefi)

    Hi, I attached a disk for the root file system to have a mirrored zfs pool. Resilvering was no problem, but how can I make the second disk bootable? I am new to UEFI and do not know any of the relevant commands. The original device: Device Start End Sectors Size Type...
  11. ZFS sync=disabled safeness

    Hi, is it safe to set the ZFS sync as disabled on Proxmox 6 if I have a working UPS protection? I see that fsyncs increases a lot with sync disabled, will this corrupt some snapshot? Thanks!
  12. [SOLVED] VM Migration failed. Incorrect storage detection

    Hi Folks! I'm trying out Proxmox VE ( 6.0-9 ) plus Linstor Plugin as a Datacenter Virtualization Solution for the company I work for. So far, pretty good. I've found a glitch though, and as I dont really know if it's about proxmox or about Linstor + ZFS, I'll post this in both communities. My...
  13. Multiple ZFS SLOG?

    I have purchased two nvme disks with PLP that I am using for my ZFS SLOG/ZIL. I have room for several more if it turns out to be beneficial that I do so. While I have successfully added two log devices, my question is if multiple log devices will stripe or give me the performance of more than...
  14. jmcorrea

    ZFS Dedup not working on backups

    Hello! We have 2 Proxmox host and we use the included vzdump tool to backup the VMs and containers that run on them. Our backup location is a ZFS server shared over NFS to both Proxmox hosts. This ZFS server has a RAID-10 like configuration with 4 disks, 40GB SSD cache partition, 20GB RAM and...
  15. Hypervisor storage (RAID-Z2) voll gelaufen - Löschen von VMs / Snapshots nicht mehr möglich

    Hallo, beim Sichern von Daten einer Seafile-VM ist mir wahrscheinlich durch das Anlegen von Temp-Files durch den Seafile-Kommandozeilen-Client auf dieser VM unbemerkt das RAID-Z2 des Hypervisors vollgelaufen: Load des Hypervisors schoss plötzlich auf 30er Werte und dann war keine VM mehr zu...
  16. Unable to boot after a update

    Just installed some updates. Now my proxmox server is stuck at grub. When try to locate my linux partition with ls (partition. Name)./ They all say can't find file system. I also tried linux boot repair disk but it keeps being stuck on the scanning is part. My proxmox is configured as a zfs in...
  17. Can't destroy LXC container "dataset is busy"

    Hello, when i try do destroy a LXC container i hav this error: TASK ERROR: zfs error: cannot destroy 'STORAGE/VM/LXC/subvol-133-disk-1': dataset is busy Thanks!
  18. The guest operating system kills the performance of the disk subsystem.

    Good afternoon. I ask for help. Installation: Proxmox 6, Xeon 2665, 128Gb REG ECC RAM, ZFS, 16Gb ARC, 4 x 600Gb Enterprise 10kSAS HDD in RAIDZ-1. root@virt:/mnt/zfs/RZHDD/vmstore# zpool status -v pool: RZHDD state: ONLINE scan: none requested config: NAME...
  19. Problem import VM qcow to ZFS storage

    Hello, I would like some help to import Qcow2 (Folder + Config) virtual machines from my hard drive (Windows) to Proxmox.
  20. [SOLVED] Possible to include this fix for ZOL ?

    Hello, Would it be possible to include this fix in the pve ZFS package. The bug would cause a hang/deadlock on the hypervisor when using snapshot heavily (especially the rollback) which the only way to fix the zombie processes was to reboot. Thanks

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