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    [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...)
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    [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...
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    [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...
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    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...
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    Proxmox VE ZFS Benchmark with NVMe

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

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