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CCPO_Siemens replied to the thread Bad Windows network performance - how to improve?.Sorry, I honestly don't quite understand what you mean by your first sentence. I can say however, that the Proxmox hosts don't have any other cpu performance problems. Other CPU-intensive tasks that we tested on both systems were comparable or...
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HHakan Evirgen posted the thread Subscription check: connection error timeout in Proxmox Mail Gateway (Deutsch/German).Hallo! die Überprüfung von der Lizenz schlägt fehl mit einem timeout. Das Problem ist, dass für shop.proxmox.com A und AAAA Einträge gibt aber der Server nicht auf IPv6 antwortet. Wenn ich IPv4 Adresse von shop.proxmox.com in /etc/hosts...
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AAli-dev replied to the thread Need to restart VM with passthrough that crash..Hi @FrancisS, The loop happens because Proxmox cluster HA tries to honor the node shutdown/migration policy, but VMs with PCI/USB passthrough can't be live-migrated across nodes without host-specific device re-mapping, so HA gets stuck in an...
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AAli-dev replied to the thread Dell PowerVault ME5024 iSCSI Performance: High Latency Spikes and Low Sequential Throughput on PVE 9.Hey @infoplus, Have run into a very similar bottleneck with PowerVault ME4/ME5 series over iSCSI on Linux kernels. A couple of things to check in your multipath and block layer configs: 1. What path_grouping_policy and path selector are you...
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Iinfoplus replied to the thread Dell PowerVault ME5024 iSCSI Performance: High Latency Spikes and Low Sequential Throughput on PVE 9.Yes, Jumbo Frames (MTU 9000) are fully enabled end-to-end across the entire path (PVE interfaces, switch ports, and ME5 iSCSI portals). Ping tests with -s 8972 -D complete with 0% packet loss. I see dropped packets though: root@PM8161:~# ip -s...
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TTheBigOne replied to the thread Proxmox in enterprice environments with shared fc storage.Thanks for your explanation. I guess that I will do a lot of tests before we think about production usage. Since we automate everything, an ansible module will calculate the placement. Striping has some advantages and disadvantages. Its not...
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LnxBil replied to the thread Dell PowerVault ME5024 iSCSI Performance: High Latency Spikes and Low Sequential Throughput on PVE 9.Have you configured jumbo frames in any setup? Are there any dropped packages on the network interface on the PVE side? -
LnxBil replied to the thread PowerScale OneFS 9.12 (VM) in Proxmox.Why should this be a problem with PVE specifically? You may have to ask the people / company developing it. PVE "just" provides the virtual machine. What you do with it is totally up to you.
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LnxBil replied to the thread Proxmox in enterprice environments with shared fc storage.Snapshotting shared thick LVM? Yes, you would need LVM locking, which was required in the past and you will have the problems you talked about. AFAIK, newer PVE versions do not require the locking daemon if and only if you do all metadata...
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TTheBigOne replied to the thread Proxmox in enterprice environments with shared fc storage.When I add 64 PVEs each 64TB to one single VG, I`am afraid that it may be a longer downtime in case of any issue. A single PVE down will cause the full VG to crash. This can happen not only when a SAN Issue occours, but only in high load...
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Mmavlenko replied to the thread Live Migrations get slower over time.Hello, I did some additional testing based on your suggestion to use -mem-prealloc, and I think this gives a much better picture of what is happening. I create test VM 3005 with 128 GiB of memory, and do qm set 3005 --args '-mem-prealloc' Fill...
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jsterr replied to the thread Ceph CVEs – keyring rotation strongly advised, probably required in the future.not sure if this is related, but since the change of the new keys when you do a fresh ceph install (for example when adding a new ceph node), ceph pool status (via pvestatd) (server-view storage-pool) is showing a "?" which only disappears after... -
EExoticApple57 reacted to jebbam's post in the thread The Joys of Spontaneous Network Interface Renaming with
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Once upon a time Linux network interface names followed the unpredictable pattern: eth0, eth1, eth2, eth3, eth4, eth5. With the advent of the miraculous systemd and "Predictable Network Interface Names" they have a variety of names. On one... -
Iinternetnoob26 replied to the thread [SOLVED] Proxmox VE 9 on Toshiba Haswell laptop: ~20 W → 4–5 W idle [Report].11. RAPL showed the CPU was already extremely efficient At around 9 W wall power I also measured Intel RAPL energy. Over roughly 30 seconds I obtained approximately: CPU Package : 1.89 W CPU Core : 0.085 W DRAM : 1.47 W This was...
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JStimmt, bei 75% bläst PVE nichts auf. Zwei Sachen aber: stell den Graph mal von Durchschnitt auf Maximum um, in der Wochen- oder Jahresansicht ist ein 20-Minuten-Peak sonst komplett weggemittelt und du siehst nur eine glatte Linie. Und der ZFS...
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JDie 30% Systemunterbrechungen, die @richik75 gemessen hat, riechen für mich weniger nach VBS als nach den Windows-eigenen Software-Mitigations. Mit cpu: host sieht der Gast auf den alten Xeons (E5 v2 bis v4) die ganzen Spectre/MDS-Geschichten so...
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JJohannes S reacted to LnxBil's post in the thread Proxmox in enterprice environments with shared fc storage with Like.
You mean in a stripped setup? Yes, I agree. In a filesystem, you have this too, but don't see it (see next answer) As someone who has worked with both of them in the past, I can say that they have a lot of drawbacks, one is performance (which...
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JJohannes S reacted to delltech1's post in the thread [PROJECT] BASTRIX SharedLVM for Proxmox VE 9 — FC/iSCSI Storage with Thin Pools, Thick Generations and Multipath Safety with Like.
Good question — this is one of the main safety concerns the plugin was designed around. SharedLvmThin does not rely on multiple PVE nodes independently modifying LVM metadata at the same time. All shared-LVM metadata mutations are serialized...
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Iinternetnoob26 posted the thread [SOLVED] Proxmox VE 9 on Toshiba Haswell laptop: ~20 W → 4–5 W idle [Report] in Proxmox VE: Installation and configuration.Hi everyone, I wanted to document a power-consumption problem I spent quite a lot of time investigating, because some of the results were very unintuitive and may also be relevant to other people running Proxmox/Linux on older laptops or Haswell...
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JJohannes S reacted to mira's post in the thread Proxmox 9 CPU/IO starved when doing a restore from PBS with Like.
To clarify: The patches mentioned by @fabian fix an issue where restores from PBS/VMA to ZFS can cause increased IO latencies on other ZFS-backed VMs during page writeback. The patches are included in pve-qemu-kvm 11.0.3-3 and qemu-server 9.2.7...