1. U

    Convert Proxmox Installation from BTRFS Z0 to Z1

    I have a PVE node (8.2.2) that was configured to use BTRFS on a single SSD. This disk contains my Proxmox installation, VMs, and CTs. I have also configured a PBS to create backups of my VMs and CTs, but I would like to add some resiliency to my PVE node by adding another SSD installation drive...
  2. M

    Raid mit 6 HDDs

    Hallo ich habe folgende Hardware: AMD Epcy 7401P Asrock Rack EPYC d8 2t 8x32gb 2133 mhz RAM LSI 9361 8i 1GB 6x6tb Dell Sas 12G 7200rpm HDD Leider erziehen die Konfigs nicht die werte die ich gern hätte. 1: JBOD und ZFS Raid 5 -> 2GB Read 270MB Write 2: JBOD und ZFS Raid 10 -> 2GB Read 38MB...
  3. P

    Dump/Backup for running containers on btrfs not working with mode=snapshot (umount: /mnt/vzsnap0/: not mounted)

    As the title says, I get errors when trying to backup LXC containers whose volumes are on btrfs storage. This happens on multiple proxmox instances, even on freshly installed without anything configured/changed. Storage config: btrfs: local-btrfs path /var/lib/pve/local-btrfs content...
  4. A

    compress-force=zstd:3 as standard for BTRFS?

    Hi, I have chosen to use BTRFS since I have been using that since it was included with (Open)SUSE so also chose it for Proxmox. I noticed very low compression on my disk images. Just a few percent. You can easily investigate this by using compsize (package btrfs-compsize). The default mount...
  5. E

    btrfs raid1 nvme for data

    Hi, I'm testing out btrfs on a new installation. I limited knowledge of btrfs and have done some reading. However, I seem to be missing a very simple concept. How to setup/mount the volumes. I created the raid1: mkfs.btrfs -m raid1 -d raid1 -L btr-vault /dev/nvme3n1 /dev/nvme2n1 Then the...
  6. B

    Proxmox on BTRFS - TASK ERROR: migration aborted

    Hello all, I ran into a problem with guest migration when preparing an upgrade from 7.4 to 8.1. Migration of guests failed, showing "TASK ERROR: migration aborted" These were the two relevant lines in the log: 2024-01-03 23:04:47 btrfs error: ERROR: cannot flip ro->rw with received_uuid set...
  7. R

    BTRFS storage

    Hey guys. I'm in need of help. I'm trying to add a USB stick to my server to serve as storage, just for testing. I already have a HD with 1 TB of capacity in BTRFS and I want to add the storage of this pendrive in BTRFS as well. I turned the pendrive into btrfs with mkfs.brtrs /dev/sdbx and...
  8. T

    vzdump with snapshot on BTRFS

    While currently not supported I have patched the perl module for LXC. /usr/share/perl5/PVE/LXC.vm You may apply the patch via patch /usr/share/perl5/PVE/ This is the content of --- /usr/share/perl5/PVE/ 2023-06-24 15:08:37.000000000 +0200 +++...
  9. K

    Choose between EXT4, XFS, ZFS and BTRFS ? Why ?

    Hi there! I'm not sure which format to use between EXT4, XFS, ZFS and BTRFS for my Proxmox installation, wanting something that once installed will perform well and hold up. I've heard that EXT4 and XFS are pretty similar (what's the difference between the two?). ZFS and BTRFS have some...
  10. L

    ERROR: job failed with err -5 - Input/output error while backing up VMs

    I have 2 nodes PVE cluster, B is using a disk in A via NFS to backup VMs (X and Y). Each time during a backup job, X always fail and Y always success. The backup logs are as followed: INFO: starting new backup job: vzdump 102 105 102 105 --quiet 1 --storage ext-hdd --notes-template...
  11. T

    ZFS settings required to use Hardware RAID instead of ZFS erasure coding

    Hi, We would like to use HA pair of Proxmox servers and data replication in Proxmox therefore shared storage is required (ZFS, BTRFS?). We also want to use Hardware RAID instead of ZFS erasure coding or RAID in BTRFS. Does proxmox define what commands/setitngs are required in order to setup...
  12. A

    Use of BTRFS in the laboratory

    Hey guys ! I would like to hear from you, how is the progress of using BTRFS, it seemed very promising, I am carrying out tests with it, so I would like to hear from friends here, if anyone is also testing or has already tested a laboratory environment with BTRFS storage And what is your...
  13. D

    Issue with Proxmox after system reconfiguration.

    Hello everyone, Today, I made some changes to my system. Previously, I had two 250GB SSDs directly connected to the motherboard as boot drives and configured them into a RAID1 with Btrfs. I also had two 1TB HDDs connected to the motherboard, serving as a ZFS RAID1 for non-essential data (not for...
  14. D

    Problem mit Proxmox nach Systemumkonfiguration

    Moin zusammen, ich habe heute einige Änderungen an meinem System vorgenommen. Bisher hatte ich zwei 250GB SSDs, die als Bootplatten direkt am Mainboard angeschlossen waren. Diese habe ich zu einem RAID1 mit Btrfs konfiguriert. Zusätzlich hatte ich noch zwei 1TB HDDs am Mainboard angeschlossen...
  15. T

    How to add a drive to a Proxmox Btrfs Pool

    I just did this (and things appear to be working well) so I thought I would share. Feel free to provide critical feedback. Also full disclosure I did get hints on this from Proxmox support but they couldn't provide assistance as I don't have that kind of license (but the hints they gave were...
  16. T

    Staring a vm causes unrelated disk disappear

    I get weird situation Proxmox is installed on btrfs raid of 3 USB flash drives I have two additional btrfs raids on 2x18 TB and 2x15TB where I store data I have NVME where my images are When I start a vm from NVME for some reason my unrelated 15TB and 18TB btrfs raids disappear, lsblk does not...
  17. M

    Delete a BTRFS bcache disk

    Ok, I had BTRFS up and running just fine. Then I decided to add a cache SSD using make-bcache -C /dev/sdg but eventually worked out that this would not work as a caching disk needs to be added at the time of creating my BTRFS RAID10. But how do I safely remove /dev/sdg? I'm running Linux...
  18. t0mz

    Setting up backup location -> Error with @ in file path

    I am making my first steps with PVE on a btrfs filesystem. When trying to set up a backup location it appears that @ in a file path is not accepted. I get the following error: illegal path for directory storage: /media/raid/@data2/backup (500) While not a requirement, @ is often used to signify...
  19. t0mz

    Installing on top of Debian with Systemd-boot and BTRFS

    I am migrating my server from Arch to Debian/PVE. Given that there are quite a few Docker services to migrate, I will dualboot until I successfully moved all services. What makes matters a little non standard is that I use systemd-boot and btrfs, which is why I thought I'd double check here...
  20. T

    [SOLVED] Crash MariaDB:10 (>10.4.28) on Docker in LXC on BTRFS

    Hi, we have encountered a strange situation: Running: 1. PVE 7.4.3 2. Partition /dev/sdb1formatted with BTRFS 3. Partition /dev/sdb1 mounted at /vol/data on host 4. Storage added: `pvesm add btrfs data --path /vol/data ; pvesm set data --format raw` 5. Unpriviledged LXC container created with...


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