Search results

  1. S

    [SOLVED] Networking issue, (Proxmox on a hyper-v guest)

    Any way to setup this (mac spoofing) in WSL2... ? TIA !!
  2. S

    (Too?) Big IO Delay peaks

    Absolutely agree. I will try to make more tests... but for now I will keep sync=standard, and only if falling in intense issues while working I will think about temporalily disabling it. And if I find time (and resources) I will remake the RAID properly for ZFS. Thanks for your comments and...
  3. S

    (Too?) Big IO Delay peaks

    On the source... EDIT: After some test, indeed, a simple VM migration doesn't seem to impact severely in IO delay on destination. Almost the same with sync=standard or sync=disabled. Sudden reboot...? Man, what kind of HW do you have... ? ...just joking, sorry :p Yes, this was a newbie...
  4. S

    (Too?) Big IO Delay peaks

    It's not a throughput issue... it's a problem with IO delay getting totally stuck the rest of VMs... The same issue arrises when migrating any vm between nodes... so I don't understand why this occurs if writes are not synced. Can you point any other scenario for this, please? It's my main...
  5. S

    (Too?) Big IO Delay peaks

    I'm studying enabling sync only for critical VMs... The rest ones are implemented for remote development so I'm happy if in worst case at least FS doesn't get corrupted, which should be guaranteed with ZFS. Keeping sync disabled for root zpool also enables, if I'm not wrong, the extra...
  6. S

    (Too?) Big IO Delay peaks

    After revising many many zfs parameters I've decided to set sync=disabled in the pool (we have UPS and controller with battery) and the problem is gone... Thx.
  7. S

    (Too?) Big IO Delay peaks

    Sorry, most probably is that I'm missing something... but at this point I think that there is anything else... Looking at this: This is the result of running crystal mark inside a VM in the node 1 (the case of study of this thread) Getting...
  8. S

    (Too?) Big IO Delay peaks

    Ok, so I understand that also is normal to get big locks if migrating a vm between nodes (not sharing vmdata). Thx
  9. S

    (Too?) Big IO Delay peaks

    Ok, so do you think that the graph and that IO delay with those specs is normal if you don't apply per VM IO policies...? Thx
  10. S

    (Too?) Big IO Delay peaks

    Yes, I know which VM is the problem (not always the same: If large data is moved between disks, intense DB working, etc...) but I guess that only one VM shouldn't hang all the node with the rest of VMs... Right? Thx
  11. S

    (Too?) Big IO Delay peaks

    PVE version 5.2-2 Kernel Version - Linux 4.15.17-1-pve #1 SMP PVE 4.15.17-9 (Wed, 9 May 2018 13:31:43 +0200) CPU - 24 x Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz (2 Sockets) Storage: - 8 x SSD SATA3 INTEL S3520 800GB 6Gb/s 3D MLC in a ZFS pool (RAID 5 HW, ...ye we didn't know ZFS...
  12. S

    Can I safely change ashift value in running zpool ?

    We're using HW RAID because we didn't know all the ZFS features and recommendations at the beginning when we were initially setting up the system (we assumed HW RAID is always better... and we were using EXT4). The SSD disks are all 8 x SATA3 INTEL S3520 800GB 6Gb/s 3D MLC, and about RAM...
  13. S

    Can I safely change ashift value in running zpool ?

    Ok, I was afraid of it... Thx. Any advise about using or not ZIL and/or L2ARC in my sceneario ? (many VMs in a HW SSD RAID5) ? Thx in advance.
  14. S

    Can I safely change ashift value in running zpool ?

    Hi, first of all, hello to everybody. I'm new as user, but I've read you a lot for long looking for support. Thx! My question... We have a production pve cluster (4 nodes + 2 test nodes), updated to latest 5.1. This has been running for more than 1 year and now we have jumped to ZFS (I've...

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!