btrfs

  1. T

    btrfs mount shows wrong size

    Hi there, on a test system which is installed on 2 disks in btrfs raid1 mode, i manually added another btrfs pool consisting from 4 disks in raid10, added it to pve. If i switch to this additional storage, it shows the same size as the storage from installation, see screenshots... bug? cheers...
  2. H

    Sichert der PBS die Snapshots mit?

    Wir haben Fileserver für Windows Clients auf Linux/Samba Basis. Die Shares liegen auf einem BTRFS Filesystem. Von jedem Share wird stündlich ein Snapshot erzeugt um bei Bedarf Vorgängerversionen der Dateien selbst wieder herstellen zu können (KD-Wunsch). Wenn ich nun einen Datei/Ordner im...
  3. N

    Problem Update Kernel 6.8.12-4-pve / No Boot

    Hello everyone, I upgraded the system yesterday. There was a problem with the GRUB configuration and the hard drives. Building dependency tree... Done Reading state information... Done Calculating upgrade... Done The following packages were automatically installed and are no longer required...
  4. F

    [SOLVED] Proxmox on Debian & btrfs filesystem. ISO images not seen on VM creation

    Hi, I installed Debian on an encrypted luks volume partitioned with btrfs. Then I installed proxmox v8.2.7. I managed to create a VM and also managed to do GPU passthrough and PCI USB controller passthrough. To use the btrfs filesystem in proxmox, I created a btrfs subvolume called...
  5. C

    Shrink BTRFS LXC container?

    By mistake, I expanded my LXC container which is located on a BTRFS file system far beyond what I intended (I put in 10000 GB). But now I don't know how to shrink it. All the documentation online assume ext4 or ZFS. Any ideas? Update: I fixed it! First, I changed the size of the container in...
  6. A

    VM disks stripping strategy

    Hi everyone, Proxmox newbie here. I got a few questions regarding vm disk management. Context: The main usage for my PVE, in a home environment, is mainly to host a file server and a multimedia server (DNLA-like), plus a few other small VMs for testing and playing around. The PVE has the...
  7. E

    ZONED STORAGE, f2fs, btrfs - experience?

    I could not find any posts regarding zoned device use on this forum. Be it an HM-SMR (w/bcache?) or NVMe ZNS, has anyone used these setups as it makes perfect sense for a ... well ... hypervisor forum to ask on. Thanks.
  8. A

    Seeking Advice on Hybrid Storage Setup with Proxmox and Unraid

    Hello everyone, I’m looking to improve my current configuration of Proxmox and Unraid and would appreciate some advice on the best approach. My goal is to achieve higher performance for VMs and LXC containers while leveraging Unraid's capability of managing mixed hard drives of various sizes...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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/LXC.pm LXC.pm.patch This is the content of LXC.pm.patch: --- /usr/share/perl5/PVE/LXC.pm 2023-06-24 15:08:37.000000000 +0200 +++...
  17. 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...
  18. 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...
  19. 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...
  20. 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...

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