UdoB's latest activity

  • UdoB
    Hi, ja, ist genau wie du vermutest. PBS checkt vor dem Sync, welche Snapshots bereits auf dem Ziel vorhanden sind, und überspringt sie. Der Rücklauf B→A würde daher quasi leer durchlaufen.
  • UdoB
    The way COW works, the 2:2 parity data is still on the zpool after you 'move it out', and still being used to calculate the total space of the pool. You need to actually replace that data with 2:4 parity data so it calculates with that. 1.35TB...
  • UdoB
    UdoB reacted to leesteken's post in the thread Stockage Type with Like Like.
    But RAID5/6 probably does not give good performance (in terms of IOPS, which you need for multiple VMs trying to use the drives at the same time). I though I mentioned that in my post.
  • UdoB
    Yeah, server and storage hardware, software and configuration details, including VM configuration would be nice to have to try reproducing this.
  • UdoB
    Thanks team, despite being my first message I've been a Proxmox user for some years already. Upgraded and working flawlessly on a Minisforum MS-01:
  • UdoB
    Ich bin nicht der OP, aber ich antworte dennoch mal..., nur zu Unterhaltungszwecken... Naja..., warum nicht so arbeiten? Ich verwende PVE extensiv an mehreren Stellen, in meinem Keller läuft ein (total oversized) Cluster. Mit den üblichen...
  • UdoB
    Hello Udo, Thank you very much for the explanation. I use the datastore for VMs only; static data is stored on a NAS with HDDs. From this, I conclude that I should probably use RAID10 (i.e. 6x mirror vdevs) for performance reasons as well...
  • UdoB
    You did not say anything of the underlying filesystems...? For ZFS it may be expected as ZFS does a lot more work than classic filesystems under the hood, resulting in multiple IO-operations used for metadata etc...
  • UdoB
    UdoB reacted to t.lamprecht's post in the thread Kernel 6.14 - End of Support with Like Like.
    The deprecation itself was not strongly influenced by that, but the decision to communicate it more actively was in fact primarily driven by it. Normally, we only mentioned it on the side once a new kernel became the default. In the past, we...
  • UdoB
    Well..., it is "50%" versus "66%". For this 16% more space you lose two third of available IOPS. Six mirrors have three times the IOPS as two RaidZ2 offer, every single vdev counts. If you are storing VMs on the resulting pool then this is...
  • UdoB
    Oh, sorry. I misread it - too quickly...
  • UdoB
    There was or there is an error in capacity reporting. I have no link, but the main point was that "more capacity" was actually present but just not reflected by the displayed values. As you found your solution by recreating the pool you may...
  • UdoB
    After expanding the RAIDZ2 you need to rewrite the data so it can use the new parity ratio of 2:4 instead of 2:2. See: https://openzfs.org/w/images/6/68/RAIDZ_Expansion_v2.pdf and...
  • UdoB
    UdoB replied to the thread Stockage Type.
    Raid10 it is, multiple mirrors of two disks. Plus regularly (usually daily) backups, of course.
  • UdoB
    Proxmox does not automatically check for filesystems (that you create using command-line tools or otherwise). Go to Datacenter -> Storage and click Add and then ZFS. There you can select your new ZFS pool and give it a name and tell PVE how you...
  • UdoB
    It should actually show up in node > Disks > ZFS. I'd recommend you enable the Thin provision option when adding it as storage. It's named a bit counter intuitive but it affect the refreservation property preventing you from over-allocating...
  • UdoB
    UdoB reacted to Johannes S's post in the thread System Reboot after Update with Like Like.
    Or install needrestart, which also checks for services which needs to be restarted.
  • UdoB
    UdoB reacted to daanw's post in the thread System Reboot after Update with Like Like.
    You can know this if /run/reboot-required exists. Usually only when a new kernel was installed. See: https://forum.proxmox.com/threads/on-package-updates-how-do-you-know-when-a-reboot-is-required.156352/
  • UdoB
    UdoB reacted to Impact's post in the thread Discard / Thin Provisioning with Like Like.
    Not that it solves the real problem but there's also this From what I can tell there is no real solution. There's a few other threads about this: - https://forum.proxmox.com/threads/migration-on-lvm-thin.50429/ -...
  • UdoB
    Hi Nadee, This is a pretty common design pattern we see for production Proxmox clusters at scale for folks coming from VMware. The good news is that what you're describing is absolutely achievable. That said, before anyone can give you truly...