Search results

  1. S

    No network on imported vm from physical machine

    hello, got a little problem... have a few vms, everything seems to work fine. i got network. if i create a new vm, i get network. now i used disk2vhd and created an image of a phyiscal machine (win11). then i imported the disk with qm importdisk. win11 boots up, great. data is there but i...
  2. S

    [SOLVED] Backup is very slow, under 1MB/s, only one VM.

    Hmm... what is a helpfull ideal solution on that ? with acronis you can restart as often as you want and it will not read the whole disk/backup again. let a fileserver lxc handle the data and mount it over network ? windows vms needs a restart on mostly any update ... (yes windows...)
  3. S

    [SOLVED] Backup is very slow, under 1MB/s, only one VM.

    I was playing around with pbs a few weeks ago and i had the same problem. i used daily backups and the reading process was endless. i look up in the docs but there was nothing about how to configure pbs to not read the whole data and instead just search for timestamp changes or whatever. maybe...
  4. S

    [SOLVED] Backup is very slow, under 1MB/s, only one VM.

    As you see in the logs there is no writing. You read with a speed of ~120-130MB/s. You have 7TB of data, so do the math... Reading 7TB at 130mb/s. means around 16 hours just read... You have to understand that the backup is incremental. It have to READ all the data , compare it , write new data...
  5. S

    Starting VMs on R730 gives machine type error pve 6.3

    had the same error today (seems to be after apt-get upgrade, installation was iso from website). dont know why, but i changed to q35 , started the machine, killed it , changed back to i440fx and then it starts up ? Whats even stranger... if i create a new machine (with default i440fx ... i...
  6. S

    Proxmox VE ZFS Benchmark with NVMe

    I checked speeds in TRUENAS newest version which should use openzfs 2.0 , results are the same.
  7. S

    Proxmox VE ZFS Benchmark with NVMe

    First, thanks for all the help. @aaron sure, this is cached. i dont think that one pcie gen3 x4 nvme can ever reach over 5000mb/s. for sure the speeds are OK, but this does not clarify why ext4 is so much faster than zfs in random read/write. for now, nvme and zfs seems to be a waste of money...
  8. S

    Proxmox VE ZFS Benchmark with NVMe

    @guletz ext4 and zfs have write blocks after fio is finished. ZFS Feb 16 20:43:38 pve01 kernel: [84848.002858] z_wr_int(9835): WRITE block 33602760 on nvme0n1p1 (48 sectors) Feb 16 20:43:38 pve01 kernel: [84848.002911] z_wr_iss(49339): WRITE block 50340888 on nvme0n1p1 (32 sectors) Feb 16...
  9. S

    Proxmox VE ZFS Benchmark with NVMe

    @aaron i am not using the DC1000B for testing. It is advertised as an boot disk for servers. I had one sample and just used it to make sure that it is not the consumer drive which is bad. The read/write test is even lower with the DC1000. For testing I am using a cheap SN750. I just want to test...
  10. S

    Proxmox VE ZFS Benchmark with NVMe

    Benchmarks: DIRECT TO MOUNTPOINT ((( ZFS recordsize=default CPU Load: read ~12% , write ~9% ))) root@pve01:~# fio --filename=/nvme01/test1 --rw=randread --ioengine=libaio --bs=4k --iodepth=1 --numjobs=6 --size=10G --runtime=60 --group_reporting --name test1 read: IOPS=46.3k, BW=181MiB/s...
  11. S

    Proxmox VE ZFS Benchmark with NVMe

    hardware on this old server is 2x xeon 2680v4, 64gb ram, nothing on there just proxmox/vmware and a testing windows vm. 1. yes u are right i was/am using this script and i already modify it that it fits to zfs, but there is no "huge" impact on random read/write 2. i know that this script...
  12. S

    Speed Problems (random read/write) with Proxmox vs. Vmware

    Hello, i build up a testing rig... there is one NVME with proxmox and one with VMware... the random read/write in proxmox VMs are not as good as in VMware ... first i thought this is a zfs problem, but the speeds are nearly the same with ext4. the cache is turned off, i tried vmdk,raw and...
  13. S

    Proxmox VE ZFS Benchmark with NVMe

    Hello, hmm.. i have problems with proxmox , nvme and zfs... the random read/write is just horrible... i testet some kingston dc1000 and wdblack... comparing to ext4 its just horrible. here are the results: PROXMOX ZFS Sequential Write QD=8 Jobs: 1 (f=1): [W(1)][100.0%][w=948MiB/s][w=947...

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!