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  1. UdoB

    Questions about ZFS replication and HA

    You enable HA for a VM, not for a Node. The node where a HA-VM is running will fence (hard reboot) itself when Quorum is lost. Other nodes without a HA resource will not do that. Yes, that's the idea. The direction of the replication switches automatically, depending on where the VM is...
  2. UdoB

    Hardware suggestions

    Sorry, I can't. You need to know exactly what services and what quality-of-service you need. Then you specify your hardware requirements, in detail. Are you just "playing" or is it a serious business? When you sell services you want them to be stable, reliable and and as undestroyable as...
  3. UdoB

    Hardware suggestions

    That's 1.6 TiB Ram. A single 64 GiB Modul (w/ ECC) seems to cost more than 400 Euros and you need 25 --> 10000 Euros only for the RAM. Seems to fit :-) Reality check please... ;-)
  4. UdoB

    SMTP notifications configured in PVE: no emails to root

    No direct help but only a hint: you need to search for "setup Postfix with authentication on Debian" or similar. You will find a zillion articles; I have no specific one to recommend.
  5. UdoB

    [SOLVED] auf gleichem PBS (v3) langsamen Storage zum langzeit Archivieren verwenden

    Viele meiner Homelab-Mainboards erlauben das Datum-/Uhrzeit-gesteuerte Einschalten direkt per BIOS-Setting. Andere Kisten kann ich per WOL aufwecken, aus einer crontab heraus. (Oder per schaltbarer Steckdose, "klassisch" oder per "Smart Socket" im Homeassisstant...) Ausschalten können sich die...
  6. UdoB

    What would cause a backup to not work, can I recover from this? [solved]

    Yeah, that's one of the manifold pitfalls everybody enjoys; glad you made it work again! There is only one countermeasure: exercise restore from time to time, not just run a backup ;-) There are situations where stop-mode is recommended, yes. Personally I run all my backups in Snapshot-Mode...
  7. UdoB

    [SOLVED] Node is online but appears offline - this only happens if a node in the cluster goes down

    Are you sure you know exactly what this does? I am sure, I do not ;-) My recommendation: return to a default setup, then it will react with the default behavior.
  8. UdoB

    Simple concept for manual, short term use failover without significant downtime?

    One very low-end approach, with these assumptions: you have two nearly identical PVE server, not clustered one is doing its job, the other is turned off you have sane PBS (with SSDs only, at least for the latest backup) - as you need to have daily backups anyway, right? When the primary...
  9. UdoB

    Is it safe to use Proxmox VE (No-Subscription / Free) for small-scale production?

    The very clear and ultimate answer is of course: it depends! If you have enough experience to administrate a Debian server consistently and continuously over years, including disaster recovery, then you may go that route. (And use a single server instead of a cluster.) If the loss of the...
  10. UdoB

    ZFS 2.3.5

    You might produce something like "FABC: optimizing a pool by utilizing the new features of ZFS 2.4" or similar ;-) I would definitely read it :-) I hesitate to roll out that update (in my Homelab) though...
  11. UdoB

    ZFS 2.3.5

    2.4 seems to be in non-sub now: Get:1 http://download.proxmox.com/debian/pve trixie/pve-no-subscription amd64 zfs-initramfs all 2.4.0-pve1 [26.3 kB] Get:2 http://download.proxmox.com/debian/pve trixie/pve-no-subscription amd64 libnvpair3linux amd64 2.4.0-pve1 [50.1 kB] Get:3...
  12. UdoB

    PBS with a volume >100 TB — how do you handle verify?

    Assuming HDDs: You mentioned Raid6. This gives you the IOPS of a single disk. A verify need to read the actual data, calculate the checksum and compare it with the stored original checksum. There is no single, large file to be read. Instead it needs to read some ten thousands of chunks, possibly...
  13. UdoB

    [SOLVED] RAIDz2 zpool not showing full capacity after zpool attach

    First compare your expectations with this one: https://wintelguy.com/zfs-calc.pl For 6 * 8000 GB it gives 43.655746 TiB raw - which is shown in the second screenshot of #3. The construction of your single vdev worked as expected. Check zpool get all S and zfs get all S to verify there are no...
  14. UdoB

    "Hybrid" pool understanding

    The relevant parameter seems to be VolBlocksize: https://forum.proxmox.com/threads/zfs-metadata-special-device.129031/post-564817
  15. UdoB

    New to Proxmox (Noob) Having issues with Network Configuration

    Sounds good. So..., what is your problem? Please report a) what you wanted to achieve, b) exactly what you did, c) what you expected to happen and d) what happened instead. If possible do everything on the command line and place full quotes (including the full command and the full error...
  16. UdoB

    Node maintenance mode UI

    Your "+1" is probably better placed over there: https://bugzilla.proxmox.com/show_bug.cgi?id=6144, already mentioned in #47. You'll also find a patch already mentioned in the last comment.
  17. UdoB

    VM recovery

    That's what backups are for ;-) Snapshots do not count for that. Be it LVM or ZFS or QCOW or xyz... ---- Edit, not mentioned yet: when I do delete a VM I want to be sure that all data is actually gone! If there are rudiments left over then the mechanism is defect!
  18. UdoB

    Notifications over SMTP

    Ja, genau. Ich nehme einen meiner externen Emailprovider und lasse alle Email dort relayen. Anleitungen dazu gibt es zuhauf, eine konkrete kann ich - ohne selber zu suchen - aber nicht nennen. Postfix ist ein ausgewachsenes Mailsystem...
  19. UdoB

    [SOLVED] Can't Boot Installer, No Video Out - Threadripper 3960x + TRX40D8-2N2T

    That's interesting as PVE uses an Ubuntu Kernel ;-) Possible workaround as a last resort: install Debian Trixie first, then install PVE - https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_13_Trixie - you would lose "OS on ZFS" though...
  20. UdoB

    Notifications over SMTP

    sendmail gehört (per Default) zu Postfix: ~# dpkg -S $(which sendmail) postfix: /usr/sbin/sendmail Wie sendmail mit dem eigentlichen Postfix kommuniziert ist mir gerade unklar - und egal ;-) Wichtig ist, dass diese Konstruktion nur dann korrekt funktioniert, wenn sie vollständig konfiguriert...