Latest activity

  • J
    J-Rod replied to the thread PBS ZFS disk speed thoughts option.
    Can you run the benchmark command on your PBS host? My setup is some pretty old hardware with six disk RAID10 with 7200RPM WD4002FYYZ: (Forgot to mention, this is with mirrored SSDs as a special device.)...
  • gurubert
    gurubert reacted to PmUserZFS's post in the thread CEPH setup with Like Like.
    I swapped the nics and it made a huge difference, I know mellanox is better, but damn. Ceph Network Swapping Test Summary Workload TypeMetricBefore (Old Public/Cluster Setup)After (ConnectX-5 for Cluster Network)Performance Impact...
  • A
    AkUsP replied to the thread PBS ZFS disk speed thoughts option.
    Yea I get your point. Im a cheapskate :-). Yea dual parity with already slow drives doesent help. It was another Proxmox "specialist" who said against RAID10 to me. Opting that ZFS in software layer doesent depend on the RAID controllers...
  • gurubert
    There is now a newer pve-manager with version 9.2.12 available on the pve-test repo and a backport of that as 8.4.22 for PVE 8's pvetest repo, matching our respective test repo of the ceph-squid and ceph-tentacle releases. There is some better...
  • J
    J-Rod replied to the thread PBS ZFS disk speed thoughts option.
    There is a long discussion here: https://forum.proxmox.com/threads/yet-another-zfs-on-hw-raid-thread-with-benchmarks.138947/ The problem is that ZFS is a sensitive topic, so to speak, so conversations seem to turn in to religious discussions with...
  • A
    AkUsP replied to the thread PBS ZFS disk speed thoughts option.
    As I said. I have 4 more disk. So we could play with 10 disks. But 1 VDEV with 2 disks gives the space of 1 disk correct ? Same as normal RAID10 HW? In this case. I have 10 disks. So It would end up a VDEV och 5x MIRROR with 500% write...
  • W
    woma replied to the thread PBS ZFS disk speed thoughts option.
    What you call "span" is "VDEV" for ZFS and their number does matter a lot, especially when dealing with very slow drives. 5400 rpm SATA is basically as slow as you possibly could be. 6 drives in RAIDZ2 are only one VDEV and give write...
  • P
    PmUserZFS replied to the thread CEPH setup.
    I swapped the nics and it made a huge difference, I know mellanox is better, but damn. Ceph Network Swapping Test Summary Workload TypeMetricBefore (Old Public/Cluster Setup)After (ConnectX-5 for Cluster Network)Performance Impact...
  • G
    gfngfn256 reacted to Boss's post in the thread Clone of Template fails with Like Like.
    Many thanks for pointing me in the right direction - I removed the orphaned disks with the dmsetup command. And can now clone from a template using that VMID 103. FYI - I removed the VM via the PVE web interface and ticked the boxes for "Purge...
  • G
    gfngfn256 replied to the thread Clone of Template fails.
    Thanks for the added info. I'm not sure what to make of this, why the device mappers still existed for these LV disks. Would also be interesting to know, if the host node was rebooted after the VM deletion. (Not that this should be necessary).
  • G
    Je nachdem auf welchem Storagetypen du die VM Disk hast, gibt es verschiedene Block Sizes. Manche Storagetypen nutzen z.B. 1MB andere 4MB. Wenn du auf einem mit 1MB erweiterst, wird das Alignment auf 1MB genau gemacht, kann aber wenn du z.B. von...
  • A
    AkUsP replied to the thread PBS ZFS disk speed thoughts option.
    What I meen is that: I have a Proxmox enviroment where i migrated my 20vms som VMware. They've been running for about 6 weeks. The PBS Server speed when running backup on them has been while watching it do it, about 200 mbs/s + These machines...
  • jsterr
    how did it help you exactly? ;-) I personally would like to make some testing about: * testing with 32 PGs vs 512 PGs (min/max) and how it affects performance * testing with erasure coded pools (fastec/non-fast-ec) * testing with krbd/non-krbd
  • J
    Hast du schon versucht C-States und andere Stromsparfunktionen im BIOS zu deaktivieren? https://forum.proxmox.com/threads/proxmox-freezes-when-cpu-under-low-load-condtions.160313/post-740562
  • J
    Vielleicht die Kiste mal öffnen und ordentlich mit Druckluft durchblasen, damit die Ritzen wieder sauber werden. Wenn auf der Maschine noch ein 6.14er Kernel verfügbar ist, könntest mit diesem auch einen Testlauf starten um auszuschließen das es...
  • J
    Und das Lüfterrad mit einem Zahnstocher o.ä blockieren. Du wärst nicht der Erste, der einem Lüfter mit Druckluft den Hals umdreht.
  • A
    AkUsP replied to the thread PBS ZFS disk speed thoughts option.
    Yes. SSD would be faster. But I currently have the disks no additional costs. No I havernt run any benchmark. Is there any test avalible where someone has pitted RAID10 ZFS software in HBA mode vis a HW RAID10 ?
  • J
    But he does. He wants to use a VM as his main desktop but also the lowest potential latency. A VM will always have a higher latency than a bare metal OS because nobody can change physics. Which is exactly the reason I see trouble with said...
  • J
    https://shop.proxmox.com/ should help you. If you need a local supplier have a look at https://proxmox.com/en/partners/find-partner/all/filter/partners/partner/partner-type-filter/reseller-partner?f=6
  • E
    I recently purchased a Proxmox VE Standard Subscription (2 CPUs/year | 3 Years). My manager has requested some clarification regarding the exact expiration time. Our "next due date" is listed as 2029/06/11. Could you please clarify the...
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