zfs

  1. Y

    Snap zfs Delete

    Hello! can i delete a snap like: STORAGE/VM/KVM/vm-122-disk-0 STORAGE/VM/KVM/vm-122-state-prenelarge simply: zfs destroy STORAGE/VM/KVM/vm-122-state-prenelarge ? Thanks
  2. M

    ZFS Snapshots missing?

    Good day, I have renamed a ZFS dataset that contained a lot of snapshots. I just used zfs rename tank/data/mydataset tank/data/newdataset to rename the dataset and it looks like it worked. Also when I list the snapshots using zfs list -t snap, they are still all present, even with the correct...
  3. H

    LXC storage other than "local"

    I have a proxmox cluster v 8.3.1, each node has a boot drive (rpool) and 2 SSDs mirrored with ZFS (vm-storage0). Under cluster>storage there are listed local, Type directory local-zfs, Type ZFS vm-storage0, Type ZFS root@prox3:~# zfs list NAME USED AVAIL REFER...
  4. D

    Remove rpool (which I am booting from) and reinstall on other disk. How?

    I want to re-install proxmox from scratch, but use another two disks in a zfs mirror on the same machine. While installing, it tells me that there is already a zpool "rpool" and therefore I cannot install proxmox. Anyway, I chose to rename the pool to something like...
  5. M

    Installation of Proxmox and Replication on HP DL380 Gen9 Server

    Hello everyone, first of all, I'm new to the Proxmox world and, in a way, I have very basic knowledge of Linux virtualization. I’d like to seek advice from more experienced users if possible. I have 2x HP DL380 Gen9 servers with the following specifications in terms of memory and storage...
  6. B

    HW RAID or ZFS on Dell PowerEdge R630

    Hi, I am wondering whether this is a correct usage of my hardware which runs PVE. I have a Dell PowerEdge R630, 2x HDDs, and 2 SSDs. From what I understand, ZFS is not recommended to run on hardware RAID. The controller (PERC H730 Mini) is currently set to HBA mode and I configured the Proxmox...
  7. O

    Why do LXC migrations between ZFS pools use Rsync?

    Hi, I have recently been moving some large LXC containers between two ZFS pools on the same machine and I've noticed something a little odd... Whereas moving a VM basically screams along as fast as the disks can manage, moving the containers is much slower - in my case, I'm getting ~70MB/s when...
  8. R

    Instructions for adding external disk in Proxmox and using it in Windows Server VM for backup

    Good afternoon, I’m planning to back up some documents in a Windows Server VM using the Windows Server Backup service. I have an external hard drive that I would like to use for this purpose. What would be the best way to add this disk in Proxmox and then make it available to the VM? Model...
  9. M

    ZFS Storage Size Reported in GUI & CLI

    I have a freshly formatted set of 4 1TB disks in RaidZ2. the GUI under node->Disks->ZFS shows 4.09TB, while the node->local-zfs->Summary shows 1.92TB. Here's output of zpool list #zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT...
  10. P

    PVE limitations with encrypted ZFS datasets

    Hi all, I recently stumbled when trying to migrate a VM from a node with an encrypted ZFS dataset to a node without encryption: ``` cannot send nvmepool/vm-310-disk-0@__migration__: encrypted dataset nvmepool/vm-310-disk-0 may not be sent with properties without the raw flag ``` It's not a...
  11. P

    I/O errors in LXC containers on ZFS. Backups fail, requiring restore.

    I've been chasing a ghost since upgrading to proxmox 8.3 (correlation is not causation, so I can't point to 8.3 just yet). Random LXC containers start to exhibit i/o errors. This is only "noticed" when a nightly backup runs as it then errors, but fails on those specific LXC's. The storage is...
  12. G

    Damaged SSD after installing Proxmox with ZFS?

    So I have this weird behavior after installing Proxmox 8.3.0 in two ThinkCentre M910Q's that are equipped with a 4TB SSD each. The machines came with a Windows pre installed which seemed to be working fine. I booted into the install ISO and installed Proxmox 8.3.0 (latest ISO download as per...
  13. A

    Panic - Error 61 from traverse dataset destroyed

    I tried to delete an unused container volume from a degraded zfs pool last night and rebooted the server afterwards. On boot the server is hanging with the following error "Panic: Error 61 from traverse_dataset_destroyed" I can get back into the server if I either disable the ZFS pool or...
  14. D

    Two+1 nodes setup

    I have a minsoforum ms-01 i9-13th gen and I plan to get another ms-01 but i9-12th gen as a secondary node. I use ZFS and I am trying to achieve extra head room along with zfs replicaton/HA. I know I need a third node to achieve quorum. So... I have another mini pc N5105 laying around but...
  15. A

    ZFS dataset empty after reboot

    Hello, I've updated to Proxmox 8.0.3 some days ago and yesterday after rebooting the server using the reboot command, one of my zfs datasets is now empty (the other dataset on the same pool are fine). NAME USED AVAIL REFER MOUNTPOINT ssd-raid/storage 705G 732G 704G...
  16. F

    abnormal (17GB!) RAM usage on idle (ZFS ARC capped at 2GB)

    Hi everyone, i'm having issues with abnormally high RAM usage from boot. My server has 32GB of total memory and i'm autostarting 4 lxcs with about 2.5Gb of total ram use. ZFS arc is configured to 2GB as per: options zfs zfs_arc_max=2147483648 and is verified by issuing root@neuromancer:~#...
  17. M

    Upgrade eines ZFS Mirrors: Welche Methode ist effizienter?

    Hi, ich betreibe privat einen Proxmox Cluster mit 2 Nodes, jeweils AMD CPU (4vCPU), 32GB RAM, 1 NVMe SSD für OS, 2x HDD als ZFS Mirror für Daten / VMs. Die Nodes sind weitestgehend identisch mit Ausnahme der Festplatten: In der "guten" Node arbeiten 2x 4TB WD RED 3,5" HDDS, in der "schlechten"...
  18. D

    PVE installation not bootable anymore, recover of ZFS based VM possible?

    Hi, after some broken apt upgrades the installation is not bootable anymore (8.0). Is there any way to rescue a ZFS based VM stored on a local ssd? I fear a reinstallation cause this will erase the ssd fully a repair installation also didn't succeed (unable to find the existing installation)...
  19. S

    ZFS ARC in memory usage graph.

    Hi there. Some time ago, I read that if someone wants better monitoring, then they need to set up specialized monitoring software and not rely on PVE graphs. Nevertheless, I do believe that ZFS users without monitoring software (like me) could benefit from showing ARC size in a memory usage...
  20. C

    no free space available

    I have an issue were the server keeps using all available space. How do i found out what is taking up the space? Also, were are backups stored, local backups. i backed i a number of vms locally but i do not know where those backups are. I want to copy those backup off the server.

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