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Sicher? Das Angebot war gelegentlich "ausverkauft" und wurde mehrfach erneut ermöglicht. Momentan enthält https://www.tuxis.nl/en/proxmox-backup-server/ den Satz "You can choose from a free account for home use or testing, ..."

Ja, die Stromkosten sind in .de echt... ärgerlich :-( Ich behelfe mir (im Homelab) durch Kaskadierung. Es läuft nur ein einziger PBS 24*7. Der ist schnell, hat "nur" SSDs (keinerlei HDD), nur begrenzte Kapazität und somit nur eine geringe Aufbewahrungszeit. Sekundäre PBS schalten sich...

Wenn man "nur" Space einkauft, muss man ja einen PBS selber aufbauen, lokal oder remote. Das treibt wiederum die Komplexität in die Höhe. Gerade im Desaster-Recovery-Fall, will ich aber, dass das Backup einfach verfügbar ist - ohne dass ich erst aufwändig die lokalen Voraussetzung aus dem Boden...

Yes! While ZFS replication is not "shared" in the classic sense, it qualifies for this use case. Of course you lose the data from the last replication point-in-time to now. If that's acceptable depends heavily on your use case. In my homelab I am fine with it. For most commercial setups it is...

Whatever you do with this conglomerate: a CACHE does help only if you read the same data multiple times. And ZFS has its own optimized cache already in place: the Adaptive-Replacement-Cache "ARC" is always present - in RAM. (( The other often mentioned thingy is a SLOG which optimizes the write...

Yeah, that's no secret :-) Unfortunately this does not mean, that I am a ZFS expert..., there are too many internal details I do not understand. Well, the most important point is that there is no automatic re-balancing. Already stored data will stay where it is. (For datasets there is "man...

Dropping ZFS will make you lose the guaranteed integrity of ZFS, IOPS (...are low for Raid5), technically cheap snapshots, transparent compression, zfs send/receive, ..., ... And... easy extensibility. Where is your problem? (( Yes, you may add a mirror (of two disk) to that pool, which has a...

I can not prove/verify this, but I would expect it. While Ethernet can operate bidirectional with full speed by definition, some operations may influence each other: received data must get pushed from the circuit board through PCIe into the system RAM and data-to-be-send travels the same...

Well..., this is one rare opportunity where I would try to use PCI pass-through of the physical NIC. This eliminates the virtualization part and should get you the maximum possibly (nearly native) performance. Disclaimer: not tested!

Perhaps because ZFS does write much more often than LVM. That graph shows an average below 0.15 percent. Do you feel that's a problem?

Was der Standardweg ist, weiß ich nicht. Ich habe für mich entschieden, dass eine VM "von innen" nichts manipulieren können darf, daher bekommt keine VM Zugriff auf tagged trunks. Außerdem ist mir SDN "zu kompliziert" ;-) Stattdessen habe ich pro VLAN eine separate Bridge. In der...

Please check if Datacenter --> Options --> HA Settings contains "Shutdown Policy: migrate"

Yeah, system logs are hard to read most of the time. There is no error listed. Maybe there has been a non-logged event? For example a power fail would not get logged, because... there is no power.

Please use ...-Tags (or the symbol "</>" in the toolbar) for terminal output...

Do you see a problem in the way it is presented? Or is ARC using too much memory for your use case? You can adjust it: https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_limit_memory_usage Basically NOT used Ram is wasted Ram. And ARC is clever enough to shrink automatically if the system...

Ich habe einfach zunächst die dritte SSD wie in https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_zfs_change_failed_dev beschrieben angeklebt. Nach diesem ersten Zwischenschritt (vor dem Wiederholen mit dem vierten Device) hat man einen dreifach-Mirror und kann dessen Funktion...

The first thing is to look into the journal: journalctl -b -1 -e = show the end (-e) of the previous (-1) boot. Good luck then. Learning by doing is fine! Just try to understand what you are doing... ;-)

Of course I know that you (and most users here in the forum) know the facts, but this sentence: calls for "Mr. Obvious", stating "yes, you can!" ;-) root@pnz:~# zpool create multimirror mirror sdc sdd sde sdf sdg root@pnz:~# zpool status multimirror pool: multimirror state: ONLINE config...

From all of my own experience: yes! How large the effect is depends on your actual use case, of course. Writing (and reading) the actual data may be (nearly) as slow as before - but the meta data can be read and written much, much faster than before. And the pure existence of the SD reduces...

You are looking to build a new system, right? Then this is the moment to upgrade to ZFS and skipping hardware Raid. Some features you'll get: https://forum.proxmox.com/threads/fabu-this-is-just-a-small-setup-with-limited-resources-and-only-a-few-disks-should-i-use-zfs-at-all.160037/ It should...