UdoB's latest activity
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Wenn du im PBS wie produktiv empfohlen nur SSDs verwendest, dann kannst du auch mit RaidZ# arbeiten. Ich habe PBS mit All NVMe und RaidZ2 sowie einem kleinen NVMe Mirror als Special Device bei Kunden im Einsatz. Das läuft gut, aber mit HDDs... -
UdoB reacted to Bu66as's post in the thread Storage-Anzeige in GUI auf local-zfs beschränken / Backup-Storages ausblenden with
Like.
Ja, das My-Settings-Ding wirkt echt nur auf die Rechenzentrum-Zusammenfassung, nicht auf den Storage-Baum pro Node. Da gibts leider keinen "ausblenden"-Schalter, PVE zeigt im Node-Baum immer alle Storages an, die auf dem Node aktiv und verfügbar... -
UdoB replied to the thread Ideale Server-Konfig für externen Speicher.Dedup auf ZFS-Ebene war in der längeren Vergangenheit extrem teuer - es brauchte viel Ram. Mittlerweile hat sich das drastisch verbessert. Aber es macht auch heute nur unter bestimmten Voraussetzungen / "use cases" Sinn. Ich behaupte mal...
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UdoB replied to the thread Ideale Server-Konfig für externen Speicher.RaidZx reduziert die IOPS auf die einer einzelnen Spindel. Es liefert also - egal wie viele Festplatten in dem vdev enthalten sind und egal ob Z1/Z2/Z3 - immer die geringste Anzahl Operationen pro Sekunde. "Auf keinen Fall" weil dies eben das...
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Vor allen benutzt zfs ab Version 2.4 das Special device als log device, solange man kein eigenes konfiguriert: https://github.com/openzfs/zfs/pull/17505 Das ist das zfs, was in PVE 9.2 und PBS 4.2 im Einsatz kommt. Im Homelab gibt es damit...
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UdoB replied to the thread verify state failed.Dedup findet im Chunkstore statt. Wenn mehrere Systeme in verschiedene Namespaces eines gemeinsamen Storage schreiben, klappt das.
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UdoB reacted to Maximiliano's post in the thread Best practice: Upgrade from PVE 8 to 9 with Ceph with Like.
Hello, Please take a look at our [pve8to9] and our ceph upgrade guides [1, 2]. Therein you can find our official upgrade guides which contain best practices. Ceph can be upgraded in-place without downtime when following the guides. [pve8to9]...
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There are some myths around SLOG, L2ARC and special device(s) in ZFS which always re-appear. 1) SLOG A SLOG is a separate storage for the ZFS Intent Log (ZIL). Synchronous writes are protocolized and written back in the ZFS pool later. For...
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UdoB replied to the thread verify state failed.In meinen eigenen Installationen "mit Blech" hat sich ein "Special Device" plus Platz für "Small Blocks" als extrem nützlich erwiesen. (Achtung: erst die Dokumentation lesen, dann einrichten.) Ein SLOG habe ich nirgends..., weil fast alle meine...
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PVE8 doesn't get any security and other bug fixes anymore, see: https://forum.proxmox.com/threads/proxmox-ve-support-lifecycle.35755/ So you need to upgrade to PVE9 as soon as possible to continue getting security and other upgrades and then you...
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UdoB replied to the thread no ssh and GUI access.Triple check if there is an IP address conflict. If some other device grabs that IP address - or it is assigned by a DHCP server - then these effects are normal. It also is normal, that Containers and/or VMs are not affected... PVE should have...
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UdoB reacted to Radik Makhmudov's post in the thread ZFS performance collapse on MegaRAID 9364 with Samsung 870 EVO SSDs (PVE 9) with Like.
Hi everyone, I'd like to summarize this investigation in case someone encounters a similar issue in the future. First of all, thank you to everyone who took the time to review the logs and suggest ideas. This was my first serious OpenZFS...
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UdoB reacted to Arctica67's post in the thread A sudden error in the cluster, 2 reasons and 2nd one me being an idiot :-) with Like.
Good point! I realized that I wrote the incorrect model, they are actually M90q G5: So I am pretty sure they will be possible to fit with this little fella that I also did buy together with the cards: It's a riser card that should fit...
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UdoB replied to the thread A sudden error in the cluster, 2 reasons and 2nd one me being an idiot :-).I am not really against a short one. I say "I do not need that as it has not necessarily any advantage". ;-) Possibly. Except that my Zabbix instance is "HA" too and has a shorter replication interval than we are discussing here :-) Not...
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UdoB replied to the thread Migrating to proxmox from XCP-NG.Hardware-Raid is fine while Software-Raid (mdraid) is not officially supported. Personally I prefer ZFS, if possible; you will waive some nice features without it...
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UdoB replied to the thread A sudden error in the cluster, 2 reasons and 2nd one me being an idiot :-).A lot of people use small/tiny systems for low power consumption. You may find that 10 GBit/s over copper adds some Watts. If possible: measure it before and after...
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UdoB reacted to Arctica67's post in the thread A sudden error in the cluster, 2 reasons and 2nd one me being an idiot :-) with Like.
I set the interval to twice per 24h, which should be fine with me. It's all a question on how much one is willing to loose. If I have to go back in time 24 hours on my Home Assistant, or Hermes agent - it's not a big deal. It's more important...
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UdoB replied to the thread A sudden error in the cluster, 2 reasons and 2nd one me being an idiot :-).Fine! I feel the need to elaborate on my statement as it was recognized as too infrequently: My example: I run DNS servers. (Among other mostly-static-data VMs.) DNS has "primaries" and "secondaries". To replicate the secondaries with a short...
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UdoB reacted to Johannes S's post in the thread [Community project] Proximo — an open-source, least-privilege MCP/API layer for managing PVE with an AI agent (feedback wanted) with Like.
Irrelevant, since the idea of a Proxmox mcp server is flawed by design. This is exactly what several people tried to explain to you and potential readers. Because you won't to stop using your new toy but hopefully readers will read the arguments...
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UdoB reacted to Johannes S's post in the thread A sudden error in the cluster, 2 reasons and 2nd one me being an idiot :-) with Like.
HA with ZFS (let's call it Pseudo-HA) definitely works if you can live with a minimal dataloss (the default is 15 minutes, can be reduced one minute). This doesn't change the need for a dedicated corosync network though which is deficult to...