IsThisThingOn's latest activity
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Ihmmm there currently known issue explained in: https://forum.proxmox.com/threads/windows-server-2025-cpu-suddenly-at-100.184763/post-861490 Where its recommended to use CPU type other than host CPU. So you can roll out this and keep CPU type as...
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IIsThisThingOn replied to the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation?.Actual data is pretty sparse on that topic. Sooo..... if you would fire up a test environment and let us know your results, that would probably very much be welcomed here in this forum :)
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IIsThisThingOn reacted to Onslow's post in the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation? with
Like.
Hi, @DeQuzzie A measurement (a general one, not particular for Proxmox) is in the article linked by other poster. Raw performance, throughput, performance delta, dedup ratio, write and read latency - in various workloads: "Introducing OpenZFS... -
IIsThisThingOn reacted to DeQuzzie's post in the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation? with Like.
Thanks @Onslow — that one actually answers the quota question from my first post: "Once the quota is reached, new writes for dedup-enabled datasets bypass deduplication and are written as unique blocks, preventing unbounded DDT growth." So it...
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IIsThisThingOn reacted to UdoB's post in the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation? with Like.
Oh, a classic misunderstanding...
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IIsThisThingOn reacted to Johannes S's post in the thread Use ZFS Special vdev with Raid 5 with Like.
How did you solve it?
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IIsThisThingOn replied to the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation?.I am not talking about CPU performance but storage performance ;) I would argue the statement "storage is cheap, performance is not" has become even more true in the last 10 months. Even though storage has got more expensive.
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IIsThisThingOn reacted to DeQuzzie's post in the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation? with Like.
Thanks, both angles are useful. On the special vdev: that matches what I'd expect for the DDT lookups, but the part I can't find numbers for is the write path — does putting the DDT on NVMe actually remove the penalty, or just move it? If anyone...
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IIsThisThingOn replied to the thread ZFS dedup on a Proxmox host in 2026 — has fast dedup changed the recommendation?.I thinkg this is en excellent read on why it might could be considered now. I stil think it is not a good idea. Why? Storage is cheap, performance is not. While it is faster, it still comes with a IMHO extreme performance penalty. The other...
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IIsThisThingOn replied to the thread S3 Local datastore recommendations?.No AWS, but Backblaze? Or why use S3 at all?
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IIsThisThingOn replied to the thread S3 Local datastore recommendations?.No, why should it? It is cache. I hope this is a typo, otherwise good luck with your S3 bill ;)
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IIsThisThingOn replied to the thread PBS hinter Apache2 Reverse Proxy.Genau darum würde es mich ernsthaft interessieren. Dank fixen IPs kannst du die Festen Regeln, bzgl Netzzonen IMHO viel eleganter und eventuell sogar sicherer umsetzen. Aber wenn du nicht willst, nehmen wir halt ein Bier zusammen :)
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IIsThisThingOn replied to the thread PBS hinter Apache2 Reverse Proxy.Warum? Oder ganz doof gefragt, ist das wirklich, wirklich wirklich nötig? In Zeiten von kostenlosen statischen IPs (/48 oder immerhin /56 Präfix) sehe ich da wenig Gründe ;)
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IIsThisThingOn replied to the thread Anscheinend schwere IO Probleme.Was für ein Backup? Von wo nach wo? Bitte genaue Konfig von Backup Ursprung und Backup destination. Und wo sind diese IO Probleme und wie äussern diese sich? Hohe IO Last bei der Quelle? Oder dem Ziel?
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IWhat version of PBS? If you scan the PBS roadmap (https://pbs.proxmox.com/wiki/Roadmap) there have been improvements to garbage collection, particularly in 3.4 and 4.0. Are you ensuring that garbage collection is not running while backups are...
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Ijust add a new HBA, thats 200 bucks and it saves you a ton of headaches
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IIsThisThingOn replied to the thread Use ZFS Special vdev with Raid 5.It is even risky with a hot spare. Ignoring that battery cache only helps with sync writes compared to ZFS, it is not about performance but resilver times (safety). HDDs are perfectly fine. Ignoring pool geometry and padding for PVE is not and...
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IIsThisThingOn replied to the thread Use ZFS Special vdev with Raid 5.PBS is mostly metadata read, so instead of svdev I would go with L2ARC. There you are free to use one drive or three drive in RAID0 or whatever. PS: please not that I would highly discourage you from such a wonky setup in general. RAID5 or...
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IIsThisThingOn replied to the thread Empfehlung für einen Neuling - Sicherung ein ca. 20 TB VM eines PVE auf einem PBS und anschließend auf Band.Ich versteh noch immer dein Problem nicht ganz. Oder was daran jetzt genau irgendwie einfacher werden soll oder in welchem Punkt wir "mehr Profi als Du" sein sollen. Ich habe zum Beispiel keinen Plan von Paperless-NGX. Wenn ich das nutzen wollen...
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IIsThisThingOn replied to the thread Quality of life update - Ram selection.Complicated solution to an easy problem. Proxmox should just remove the MiB. Instead, do it like most other software. Allow the user to input Number X plus M or G. Like 512M or 4G.