ext4

  1. How to tune2fs a mount point in an LXC container?

    I have some containers with large disks (mount points). I'd like to reduce the number of reserved blocks on these. How can I do this? According to mount inside the container, the filesystem is ext4: colin@www1:/dev$ mount | grep images /dev/mapper/pve-vm--120--disk--2 on /disks/images type ext4...
  2. MDADM create with NVMe failed - Floating point exception

    Good day everybody, we would like to subsequently set up a software raid 1 on our Proxmox system with mdadm. Proxmox itself is currently installed on an NVMe with ext4, which is now to be mirrored on another NVMe. However, the following error occurs. "Floating point exception" root@pr-001:~#...
  3. rsync ZFS files to a remote ext4 disk / dir storage with ZFS storage as mountpoint

    Hello everybody ! I am building a decentralised based cloud with proxmox, using multiple nodes across my country. It's a "best effort" project, aiming to provide to people some alternatives vs classic GAFAMs based cloud. Some of my nodes are proxmox clusters, running an underlying ZFS...
  4. cluster with zfs and ext4 root

    I have a cluster with all nodes on ext4 root. I would like to add a few (new) nodes with zfs raid1 root. I found out that there are some issues, and I would like to know what's the best way to proceed: - The local-lvm storage shows up with a "?" on the machine with zfs root, which is...
  5. [SOLVED] SSD performance issue on ext4

    Hi All, I installed proxmox (using ext4 filesystem) on a 5212MB SATA SSD (used consumer-grade Sandisk SD8SB8U512G1001) to evaluate it. I run some benchmarks using fio, to get an idea of how fast it is. Before installing proxmox, I benchmarked the disk with PassMark's Performance Test on Win1o...
  6. Problem with Disk on RAID6 more 10Tb

    Hi everyone! I have problem with my PVE 6.4-13/9f411e79 (running kernel: 5.4.128-1-pve) with Disk volume Disk model: PERC H730 Mini (raid6 2Gb*8) Disk /dev/sdd: 10.9 TiB create file system in parted: (parted) mklabel gpt mkpart primary 1 90% create file system ext4: mkfs.ext4 /dev/sdd1 done, I...
  7. Ext4 bei Neustart

    Meinem Rechner mit proxmox wurde Unwetterbedingt der Strom abgedreht. Jetzt wollte ich die Kiste wieder neu starten, bekomme aber folgenden Fehler: VFS: Can't find ext4 filesystem Danach: Failed to mount /mnt/sdb Dependency failed for local file systems Failed to start import zfs pool ssd1 Da...
  8. Gast Filesystem: XFS vs. ext4 auf ZFS-Host?

    Hallo, dank einem Beitrag habe auf eine Frage von mir habe ich nun meinen Server auf ZFS umgestellt. Nun stellt sich mir die Frage: XFS oder ext4 als Gast FS? Bisher war ich immer ein Freund von XFS: - defrag online möglich (auch unter Linux relevant; ggf. weniger/gar nicht bei SSD?) - stabil...
  9. Proxmox EXT4 FS Error on R210ii with four SSDs

    I am running proxmox on a Dell R210 II, which I recently upgraded to use four Kingston A400 SSDs running in RAID 10 using the H200 RAID controller. After this machine ran for a few hours, it encountered an error and fell back into a read-only root filesystem (I've seen some answers that suggest...
  10. Proxmox and VM performance are too slow, Linux VM Taking 3-4 hours and Windows VM 7-8 hours to bootup

    Hello, I installed a new setup in my server. (Unfortunately old one crashed completely). I had to rebuild it from scratch. In capacity, it's 2tb HDD SATA + 500 GB SSD, with 64GB RAM. I followed the steps as per documents. I selected Ext4 for my installation. Surprisingly, once I loaded vm's. It...
  11. bitboy0

    Keine Snapshoots mit EXT4 aber kein ZFS mit HW-RAID?

    Der Server läuft, aber ich habe da drin 10 Platten an einem HW-Raid 2*SSD als Raid1 (Systempartitionen der VMs und Datenbanken) 6*HDD als Raid6 (Storage für VM 1&2, etwas schneller als RAID1) 2*HDD als Raid1 (Storage für VM 3, Geschwindigkeit egal) Der SAS-RAID-Controller hat auch einen Akku...
  12. [SOLVED] Why is the 'data' LV much smaller that the disc?

    I apologize if this is a noob question. So I installed Proxmox "normally", i.e. with LVM and ext4 some time ago. Now i noticed that my SSD shows up with 223,57GiB in size under Datacenter->pve->Disks. But under Datacenter->pve->Disks->LVM-Thin the data LV is just 141,43GiB. What is the rest used...
  13. I/O errors, PVE not booting

    Hi, I had a PVE 6.2 install running for quite some time. Now, after creating a new VM, my server is acting up and I don't know why and how to fix it (even after extensive googling). When trying to boot the server, I get repeated messages of this form: EXT4-fs (dm-1): I/O error while writing...
  14. William Edwards

    File system in VM

    I am trying to decide between using XFS or EXT4 inside KVM VMs. My goal is not to over-optimise in an early stage, but I want to make an informed file system decision and stick with that. Situation: Ceph as backend storage SSD storage Writeback cache on VM disk No LVM inside VM CloudLinux 7...
  15. Remove unused directory from gui

    Hi. After testing some new disk with ext and xfs, i end up with a Server/Disks/Directory with "/mnt/pve/test-disk /dev/disk/by-uuid/xxxxxx ext4 defaults" This disk in now gone/formatted and replaced with xfs manually. But this line in gui i cant find out how to remove. (its not in...
  16. Error to migrate VMs or CTs stored in Ceph when one of the nodes doesn't use ZFS

    My config is: 3 nodes configured to hyperconverged (cluster+ceph+ha), two netwoks (one for services and one for ceph). All ISOs, templates and disks (for VMs and CTs) stored in Ceph. One of the three nodes was not installed with Zfs but with Ext4. The issue: After you migrate a VM or CT to...
  17. Mounting existing ext4 filesystem to VM

    Hi, Noob question... I'm looking to move from several physical machines to one big server and several VMs. One of those physical machines is a OMV-based NAS with several ext4 disks full of data. Can I mount the ext4 filesystems to proxmox and then make them available to a VM (which will be...
  18. TwiX

    Ceph ext4 mysql

    Hi, I noticed that the only way to get low iowaits with ceph is to settle VM disk cache to writeback. But it's not enough, with mysql (innodb) we still have high iowaits on high load. We have to disable barrier on ext4 mount options. After that, disk performance is OK. On a 5 nodes cluster...
  19. Intel NUC single SSD - best filesystem?

    We're planning on using a few Intel NUCs in lab conditions with Proxmox. They take a single M.2 NVME device. What would be the best filesystem to use in this case? Also if ZFS would a RAID1 or RAID0 array be the correct option?
  20. XFS with Thin Provisioning

    Hi, I have set up a thin pool for container creation. When I create Cts the filesystem is formated with ext4 automatically. is it possible to create containers with XFS instead of EXT4 using thin provisioning? Regards

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