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Thanks for your replys, I understand the problem I have made. Also https://www.thomas-krenn.com/de/wiki/Fio_Grundlagen helped me to understand better about working with fio After increasing the iodepth to 16 I get these results: fio -ioengine=rbd -name=test -bs=1M -iodepth=16 -rw=randwrite...

But how does this have impact on my actual problem, because according to the documentation (https://proxmox.com/en/downloads/item/proxmox-ve-ceph-benchmark-2020-09) the rados benchmark seems to be very good for a 10GBIT Network

According to the https://proxmox.com/en/downloads/item/proxmox-ve-ceph-benchmark-2020-09, I have the same speed as expected. Still confused how the slow write performance comes up rados -p ceph_rbd bench 60 write -b 4M -t 16 --no-cleanup hints = 1 Maintaining 16 concurrent writes of 4194304...

Ok thanks for the hint :)

So is there any possibility to fix the latency. Because I am already using 10GB Network and SSD as recommended in the documentation. Yes I do :)

Hi everyone, I have a three node Proxmox VE Cluster to test Ceph for our enviroment. Specs: ASUS Server KNPA-U16 Series 32 x AMD EPYC 7281 16-Core Processor (1 Socket) 64GB RAM two 1GB Nics (one used for to access the proxmox web GUI) two 10GB Nics used for ceph-cluster (hosts connceted over a...