Search results

  1. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    I didn't, and thanks for the explanation! I will read more about it though... And yes, seems like simple LVM solved my issues... It did restore over 400GB in under 1 hour, between a container and VM over NFS, so it is more than my needs... and I'm happy. I will have to study about how the thin...
  2. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    Resuming my issue... I was trying to restore Backups from a HDD into Crucial MX500 2TB. With every fio test the SSD showed "OK" results and I/O speed which is expected from a low cost consumer SSD. Restoring Backups, the SSD would crawl at 10MBps maximum, and sometimes a few KBps. I tried to...
  3. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    And any tip about the other questions ? Why hdd has 8 reads, and that becomes 2500 writes for the same speed? And is proxmox backup equivalent to a sequential write ?
  4. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    I understand what you mean.. And yet after several fio tests with different configurations, the hardest it can come up to is still better throughput than a backup ?!? I don't understand how a backup can create 2500 writes per second at 10Mbps and read from an hdd at 8 reads per second at the...
  5. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    I'm still trying to restore my VM backup... Power failure led my 6 days restore to fail... Then I used that to format the entire proxmox and reinstall. Issue persists... This is not something any kind of ssd/hdd should struggle with I think... - Can anyone explain me why 8 r/s become 2500 w/s ...
  6. B

    Bug IOWait on Proxmox 7.2.11

    Must be something else. Still getting 1700 iops 6MBps+ with iodepth=1 4k Not the best result of the world, but the worst SSD should be capable of handling a backup in that condition, right ? This is what hapens with a backup... How long will it take to restore a 1TB VM... ?
  7. B

    Bug IOWait on Proxmox 7.2.11

    My MX500 ran this OK in my opinion... 1st fio - 180MBps 180 iops 2nd fio - 1.3 MBps 326 iops 3rd fio - 122Mbps 122 iops Still not as hard as a backup restore... I'm still trying to understand why VM backups just hang the SSD... Can't figure it out.. 300KBps 50 iops Have been unable to...
  8. B

    Bug IOWait on Proxmox 7.2.11

    Most of the time I am able to write 4k at 60MBps+ sustained with fio or 300MBps+ if sequential writes However vzdump is making something weird and making the ssd crawl to 300KBps. Can't really understand if its due to the ssd, to the system, or what kind of weird unstable behaviour vzdump is...
  9. B

    Bug IOWait on Proxmox 7.2.11

    https://forum.proxmox.com/threads/backups-in-proxmox7-slow-restore-high-io-on-ssd.116011/ I'm suffering the same problem... With the same SSD... Could you show your iostat while backing up ?
  10. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    SSD is a MX500 2TB drive and HDD is a WD Black 2TB. Do you think it makes sense to crawl to 300KBps at 50iops ? Even a consumer SSD should be able to restore a backup at normal speeds. I wouldnt ask more than 50/60 MBps, but this is on another level. Even reading some reviews of its...
  11. B

    Backups in Proxmox7 - Slow restore & High IO on SSD

    Hi everyone, Recently I made a clean install on my server, and I am trying to restore the VM Backups for a few days. I cannot seem to find the reason why backups are this slow... /dev/sdc with ext4 is the consumer HDD where backups are stored and /dev/sdb is the consumer SSD with Thin LVM where...
  12. B

    PVE 6.2 - SSD speeds how to tune

    Hello, I am new to Proxmox, and this is the first time I am using LVM so I am not yet fully used to how it works. I installed PVE on a consumer SSD (Samsung 860 Evo 500GB) and had a 2TB WD Black HDD for some VMs. No ZFS or Ceph is being used, and disks are single drives in LVM. At first I...

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!