zfs

  1. O

    SOLVED: How do I direct passthru a ZFS Raid1 USB device to a TrueNAS score guest?

    I have a ZFS Raid1 USB HD that my proxmox 8.2.4 can see: root@pvelab:~# df <SNIP> kyoudaiHD 2726474496 762213376 1964261120 28% /mnt/giant kyoudaiHD/archives 4291559040 2327297920 1964261120 55% /mnt/giant/archives kyoudaiHD/backups 1964261248...
  2. X

    Move LXC container to different storage type

    Hello, I am in the process of migrating some LXC containers from one host to another where I have different types of storage. The source host where the container is located has ZFS storage and the destination host has XFS (LVM). How should I proceed? I have tried to make a copy of the...
  3. R

    Proxmox ZFS Speicherhardware Best Practices

    Hallo liebe Proxmoxer, ich bin derzeit bei der Konfiguration meines ersten eigenen Homeservers. Leider bin ich von der Informationsflut und den teils widersprüchlichen Aussagen, welche man in den Weiten des Internets bezüglich der Best Practices bei der Speicherkonfiguration findet, etwas...
  4. T

    Zpool won't expand after replacing disks.

    Not too long ago, I decided to increase the capacity of my rpool, and replace it's SATA SSDs with larger NVMe disks. So I attached the two new larger NVMe disks to the rpool and let it resilver. I decided to leave the SATA disks in place until I next had the time and need to reboot the server...
  5. D

    Cluster with ZFS pool, Failed ZFS Storage device on one node, Zpool missing.

    Hi, I have a 5 node cluster setup with PVE 8.2.7, the nodes are using a pair of direct attached disks as an OS mirror and a ZFS pool on a 12 disk HPE D3600 Disk Enclosure using direct SAS connections to each node One of the nodes has lost connection to the ZFS pool. I am about to flatten the...
  6. S

    BTRFS on LUKS on zvol advices

    Hi, I currently have a ZFS pool of SSDs where I have some VMs on zvols (ext4 fs), and I want to create a VM with an encrypted disk that would be encrypted using LUKS and use BTRFS as a file system. I have read that using a COW filesystem (BTRFS) on a COW filesystem (ZFS) is not a good idea...
  7. UdoB

    [TUTORIAL] FabU: This is just a small setup with limited resources and only a few disks, should I use ZFS at all?

    Should I use ZFS at all? For once this requires a disclaimer first: I am using ZFS nearly everywhere, where it is easily possible, though exceptions do exists. In any case I am definitely biased pro ZFS. That said..., the correct answer is obviously: “Yes, of course” ;-) Integrity ZFS assures...
  8. UdoB

    [TUTORIAL] FabU: Can I use ZFS RaidZ for my VMs?

    Assumption: you use at least four identical devices for that. Mirrors, RaidZ, RaidZ2 are possible - theoretically. Technically correct answer: yes, it works. But the right answers is: no, do not do that! The recommendation is very clear: use “striped mirrors”. This results in something similar...
  9. M

    ZFS Special VDEV

    Hi, On the beginning of 2024, I set up a new storage server for my work using ZFS and Samba on Proxmox. I added to the ZFS pool a "special" vdev, which gives a really good performance when the 40TB (around 50 Million files) of data are backed up, as the file metadata can be analysed very quickly...
  10. A

    Encrypted ZFS datasets empty after manual mount

    Hello! I am struggling with a quite weird problem imho. Running Proxmox 7.4.1 (without subscription) without any issues for a long time until recently the SATA controller card locked up and I had to do a hard shutdown. Connected the 4 harddrives to the internal ports and booted up. The pool...
  11. A

    Proxmox, ZFS, Storage, Dell Poweredge

    Hello; Having the Proxmox installed to Dell Poweredge R620 10bay; with RAID6; 8 SAS HDDs in use, 2 SAS HDDs are not in RAID; all, Proxmox: working as configured. Few days ago, bought second R620, 8bay, with 8 X 1TB SAS HDDs, with the H710 Mini in HBA mode, so no HW RAID enabled. I did not...
  12. Z

    Dateien größer als 1,3 GB können nicht kopiert oder heruntergeladen werden (ZFS Mirror)

    Hallo zusammen, ich habe ein Problem mit meinem Proxmox-Server, das ich alleine nicht lösen kann. Der Server läuft mit einem ZFS-Mirror und hat 32 GB RAM. Vor kurzem wollte ich eine ISO-Datei herunterladen, aber der Download stoppte immer bei ca. 1,3 GB. Seitdem ist mir aufgefallen, dass ich...
  13. G

    Why is `ZFS over iSCSI` clones support limited?

    Why are clones not supported when using `ZFS over iSCSI`? Refer to table in: https://pve.proxmox.com/wiki/Storage:_ZFS_over_ISCSI In contrast, NFS has support for clones via qcow2. https://pve.proxmox.com/wiki/Storage:_NFS
  14. S

    pve-zsync: still supported?

    As part of investigating different options for ZFS dataset replication under proxmox, I've comes across a tool called `pve-zsync`.This appears to be for syncing zfs datasets between hosts, a bit like how `pvesr` syncs the zfs disk images between hosts. I'm struggling to understand if `pve-zsync`...
  15. P

    [SOLVED] Files in bind mount not visible

    Hello, recently, I decided to change how my NAS should work (VM with OMV ---> LXC with Cockpit) to make better use of the shared folders/files/mount because I wanted an arr-Stack. I found these awesome Tutorials Tutorial bind mounts and ZFS bind mounts. I got it to work except for the Tdarr...
  16. M

    Cloning from ZFS snapshot in GUI

    Hi all, We're running into a limitation in the GUI when trying to clone a vm from a snapshot on ZFS storage. On LVM this works fine, I know this works a bit different and also allows for non-linear snapshots which ZFS doesn't. A full clone however should be possible in my AFAIK. I'm able to...
  17. B

    Failing SSD in ZFS RAID1 - How to replace SSD

    I rebooted one of my HA boxes over the weekend, and a message popped up at the BIOS level that one of the 2 SSD drives is 'near life end'. The system has 2x240GB SSD drives in a ZFS RAID 1 (created during install by Proxmox). The mfg. is sending me a new drive (actually 2) as they appear to be...
  18. S

    Optiming Virtual Disk Volume Block Size (Host) and EXT4 Blocks/Groups (Guest)

    It just occurred to me that the Reason why I'm getting such a MASSIVE overhead on my Backup Server (which has 2 x RAIDZ-2 x 6 Disks each) is because the Default ZVOL on Proxmox VE is (or probably "was" for a long Time, and many of my Virtual Disks are quite Old) 8k, which results in a Space...
  19. G

    Unable to change Legacy boot to UEFI

    I have a Proxmox (currently running version 8.3) server, that was installed on ZFS RAID1 a few years ago, booting Legacy BIOS mode. There is a 512MB EFI partition present on the boot drives, but when I switch the BIOS to EFI boot mode. nothing happens beside the EFI shell starting. Searching...
  20. M

    [SOLVED] Live migration fails, but works after first offline migration

    Hello, I have a very strange problem. I have two PVE 8.3.0 nodes with AMD Ryzen CPU's, 64 GB RAM, 1 TB NVMe with ZFS and 2x 2,5 GBit NIC's on each node. All VM's replicate from node1 to node2 every 15 minutes. Node1 is the primary node, node2 was just added. When I try to live migrate a VM...