zfs

  1. altano

    LXC mount zfs filesystem

    I have a zfs pool on the host Proxmox system: # zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT ... zslow 131T 38.2T 92.7T - - 0% 29% 1.00x ONLINE - I have the pool loaded and I've mounted a filesystem: # zfs list...
  2. M

    iSCSI LUN size wont reclaim and possible bug

    TrueNAS created a ZVol, Sparse: on; created a iSCSI target, Disable Physical Block Size Reporting: off. PVE mapped iSCSI target, "format" and use it on VM, works no problem. on VM creation, one than one vm-<ID>-disk-<ID> will be created. For example 1G disk created. The issue is after...
  3. L

    Proxmox VE 9 existing ZFS vdev expansion?

    Hello, So I recently performed my upgrade from proxmox VE 8 to 9 and with it I was excited to see that v.9 now includes a form of ZFS expansion: "ZFS now supports adding new devices to existing RAIDZ pools with minimal downtime." I currently have a ZFS pool created on one of my PVE nodes that...
  4. F

    Recent terrible instability - NVME and pve 9 with ZFS fs?

    Hi All I've had some wild hangs recently on my small homelab. It's a SFF w. Intel Core 7 240H. In it I have two m.2's (NVME) one smaller for the OS, and a bigger for the VM/CT's. After searching like crazy, and not finding a solution, I turned to ChatGPT, and that informed me that sometimes it...
  5. W

    PBS Gaps in Resource Graphs

    Good morning everyone, I’m trying to understand why there are missing segments in the resource usage graphs. We’re dealing with virtual PBS instances that mount an NFS share on ZFS storage over a 25Gb link. The journal logs show no anomalies during the affected time window, and I can’t...
  6. D

    Legacy-Boot with ZFS-Root on Supermicro X8DT3 (Proxmox VE 9.0, no UEFI)

    Good evening,, I’m currently setting up an older but still very solid server as a modern Proxmox system, and I’ve run into a boot issue related to ZFS on legacy BIOS hardware. My Server Setup Supermicro X8DT3 (no UEFI, legacy BIOS only) Dual Xeon 55xx CPUs 48 GB ECC RAM Dell PERC H200 (LSI...
  7. Z

    Homelabbing two nodes with PBS in Proxmox Containers with full ZFS access

    I have a couple of nodes, and they're for homelabbing. I'm learning system administration with these. They both use ZFS. One is a PowerEdge 730XD with a PERC H730 RAID controller set to JBOD and a few pools in different configurations (2x Stripes and a mirror), and the other is a ThinkCentre...
  8. M

    zpool list vs zfs list vs pvesm status

    Hi, I'm well aware that zpool list and zfs list are reporting different numbers, because zpool looks at the raw data on disk while zfs reports logical numbers. However my numbers are so weird, I cannot take them for being correct or making sense. I have two pools 'data' and 'vms' and both are...
  9. J

    iSCSI Shared Storage Configuration for 3-Node Proxmox Cluster

    Hi I'm trying to configure shared iSCSI storage for my 3-node Proxmox cluster. I need all three hosts to access the same iSCSI storage simultaneously for VM redundancy and high availability. I've tested several storage configurations: ZFS LVM LVM-Thin ZFS share Current Issue With the ZFS share...
  10. T

    Configuration check - EXT4 for Proxmox / VMs / LXCs on single NVME SSD, ZFS on 2xHDD for file storage

    Hi, I'm adding some HDDs to my home server and wanted to double-check my proposal makes sense before I hit go. Please can you advise if this seems sensible or if I am barking up the wrong tree? Hardware: HP EliteDesk 800 G3, i7-7700 CPU, 32GB non-ECC RAM, 1x512GB NVME SSD 2x4GB Seagate Exos...
  11. K

    HELP !! Recovering ZFS disk header after running sgdisk -Z on one RAIDZ disk

    Hi everyone, I have a ZFS RAIDZ (3 disks) setup that was created using whole disks (no partitions). Unfortunately, I accidentally ran the following command on one of the member disks: sgdisk -Z /dev/sdb This wiped the partition table and GPT headers. Now ZFS doesn’t recognize the disk as...
  12. F

    [TUTORIAL] PVE (rootfs) with autosnapshot, boot into snapshot and easy rollback on ZFS Raid1 for Bios or UEFI

    Occasion: Actually, my one wanne build such a boot environment on BTRFS Raid1 because of my experience with timeshift in the desktop field, but while my experimentation the question comes up, of course, is this possible with zfs. And when one research the web for zfs snapshot boot menu solution...
  13. D

    ZFS causes system to hang at shutdown because of erroneous pool errors

    Hi folks, I've been using ZFS on Proxmox for a few years now, ever since I got my first drive shelf & HBA card I've had issues with ZFS suspending pools randomly on startup. Anything that relies on the pool tends to hang, requiring a restart to fix. When I try to shutdown, the whole system...
  14. D

    Double drive failure on zfs RAID 1. Any suggestions on how to debug?

    I had proxmox running on a zima blade, with two HDD on RAID1 (zfs in proxmox). It stopped working and the pool disappeared. I tried to check if either of the drives could be read for the data on my pc , but it turns out, both drives have failed (it spins but doesn't get detected by the system)...
  15. J

    Recommendations for Dell R7715 Hardware selection / controller question

    Hello all, we are configuring a Dell server for ProxMox with ZFS (no Ceph), and I wonder what I should select in terms of Controller. Prefix: I know that ZFS is not compatible with HW RAID, and we do not want to do ZFS with HW RAID. However, on one hand, we also have loads which we want to put...
  16. D

    [SOLVED] Running containers on ZFS, not using "dir" storage

    Hello all, I'm sorry if this was discussed previously, just the search terms ZFS, storage, rpool didn't lead me to the info I am looking for. My past experience is using LXC and incus separately, so perhaps I am misunderstanding how terms I believe to know are used in proxmox. I have a PVE on...
  17. I

    [SOLVED] Does PBS make use of atime?

    Does PBS actually make use of atime? Or is it just inherited because of ZFS upstream? TrueNAS disables atime by default for performance reasons.
  18. B

    TrueNAS over iSCSI Native Storage Plugin for TrueNAS 25.10

    TrueNAS over iSCSI Native Storage Plugin https://github.com/boomshankerx/proxmox-truenas?tab=readme-ov-file#truenas-over-iscsi-native-storage-plugin-for-truenas-2510 Calling all beta testers. TrueNAS has released 25.10RC1. We are looking for beta testers for the fully API driven storage plugin
  19. N

    Set up ZPool, Replication, and HA - no snapshots. Grand total of less than 10TB worth of data. 32TB STZ reporting full, io-fault on a VM???

    2 nodes, 3rd node does not have access to ZPool, it is just a tiebreaker node for quorum. No snapshotting, backups are handled by Veeam to their own hardware (in other words, no backups in the web-interface of ProxMox). Everything migrated from a HyperV computer, where the 7TB was...
  20. S

    [SOLVED] PBS 3.4.6 und Kernel 6.8.12-15-pve: Backup-ZPool: I/O error Destroy and re-create the pool from a backup source

    Hallo zusammen, ich verwende PBS 3.4.6, der Backup-Pool ist ein raidz2-Pool bestehend aus acht Festplatten (nicht ganz das empfohlene Setup, es erfüllt aber seinen Zweck und spielt für das Problem eher eine untergeordnete Rolle). Nach einem Reboot mit Kernel 6.8.12-15-pve wurde dieser...