btrfs

Hello Forum, I installed Proxmox and chose the option to use BTRFS in raid 1 configuration across 2 SSDs. This has worked perfectly fine, but recently disk space is becoming low. I only have space for 2 drives in the case, so I would like to expand/replace these 2 drives with larger ones. I'm...

HI, May I know if it is possible to install proxmox backup server with btrfs, if so, any documentation for the same? Thank you

I see that BTRFS is in 7.2 and still listed as a technology preview. Is there an estimated VE version when this will be stable for production use?

Hi, I have installed pve 7.1 with btrfs mirror using 2 SSD's. During installation these SSD's are /dev/sda and /dev/sdb. After base Installation I added 3 HDD's with an existing zfs. The device names of the SSD changed to /dev/sdd and /dev/sde. No problem so far. To check what is happening when...

Hi All - I decided to give btrfs a try as my root FS on a single mSATA SSD. Everything seems fine aside from boot times - for some reason, GRUB hangs on the "welcome to Grub!" message for a solid 20 seconds. Grub's also seems slow to respond. Once the kernel is loaded and the initrd is...

I simulate disk fail on the raid1 btrfs which is also my root for proxmox ve 7.1-7. When one of the disk failed, the system will not boot. It stuck at initramfs, i am unable to mount the system as the initramfs does not have mount.btrfs The system will boot normally with both disk exits...

Hello, I'm going to install a new fresh Proxmox server for my homelab and I'd like to ask you suggestions to configure it in a proper way (I've already a Proxmox server I'd like to reconfigure from scratch). HW: CPU Intel Core i5 4460 (4c/4t) RAM 16GB 8x SATA3 ports (2 on the mobo and 4 on a...

Hello, what do you think about BTRF in a production server Raid 1 or Raid10 ? Some one use BTRFS RAID5 or RAID6 ? ( I'm reading that is not stable ..) Thanks!

While working through the Cloud-Init at https://pve.proxmox.com/wiki/Cloud-Init_Support to create a Template on my PVE7 system that is using BTRFS storage I get the following error: $ sudo qm set 100 --scsihw virtio-scsi-pci --scsi0 local-btrfs:100/vm-100-disk-0.raw update VM 100: -scsi0...

I'm a little confused with the documentation. The BTRFS page says BTRFS will honor the O_DIRECT flag when opening files, meaning VMs should not use cache mode none, otherwise there will be checksum errors. which I understand to mean set the disk cache to anything other than none. However on...

Hi, i would like to use QCOW2 image to my VMs, i am using BTRFS file system in PVE 7, but i found this https://forum.proxmox.com/threads/no-qcow2-on-zfs.37518/ post and there is a good question. Can I use it without loss of performance?

I am playing around with btrfs at the moment. What I haven't understood yet how to deal with degraded arrays: First I tried to install PBS in a VM, rootfs on ext4, so nothing special. Installed kernel 5.11 and btrfs-progs from backports. Made three disks and put them into a raid1-array with...

Hello, I'm a bit lost on the optimal configuration for a Proxmox Homeserver running Jellyfin and other file and cloud services. I've an Asus C246M WU4 Mainboard with Xeon E2146 CPU. I use two NVMe SSDs in a mirrored setup with ZVS filesystem. I own one 8TB HDD for media storage which I plan...

Hi there, I currently have some VMs which are hosted on and run from a shared NFS share by the Proxmox hosts. I currently use Proxmox to backup (snapshot) these VMs back to the NFS share but this seems inefficient with the reads from NFS -> PVE host and writes back from PVE -> NFS host...

Hello! I have a question regarding the content of Grub Menu vs. /boot/grub/grub.cfg. In my case the content is inconsistent. And this is causing an issue with booting a BTRFS snapshot, because the required snapshot won't boot with the options displayed in Grub Menu. I'm running these software...

Dear all, I want to have urbackup VM and I want to use btrfs killer feature (cross link, offline dedup and so on) with urbackup. What do you think if I will have zfs (zvol) as my host fs and btrfs as a guest system? Best regards,

Hey Guys, new year, new challanges. This year i picked filesystems and after 3 weeks reading documentation, tutorials and best practices I'm just running in a deadend. I picked an existing power optimized server with 16 GB RAM, 1x 250GB nvme SSD (Proxmox+VM), 1x 256GB SSD SATA (Cache/Log), 2x...

Hello everyone! I have proxmox home lab, and now I try to choose filesystem for my virtual machines. I will run Windows VMs and I need better filesystem for that. I setup Windows VM with this config: agent: 1 balloon: 0 bootdisk: virtio0 cores: 4 cpu: host memory: 4096 name: Test-IOPS net0...

Hi there, I have been searching the internet for a couple of hours now and so far come up empty handed. I would like to create some containers and use Docker in them. I have this working by tweaking the /etc/pve/lxc/CTID.conf for the containers like so: lxc.aa_profile: unconfined...

Hello all, Just wanted to issue a heads up to anyone using synology NFS exports as proxmox storage! Synology is starting to support BTRFS volumes with some advanced features on their synology devices. However, proxmox seems to have an issue with that. For example when I'm restoring a vzdumped...