I added a 25Gbit/s network for the sync and the speeds are now ok.

Hi, thanks for responce 1. What is the underlying storage (Pass-through, RDM, VMDK)? I have tried both passthrough and VMDK 2. What is the iSCSI link bandwidth? Make sure you are not mixing the traffic. 1Gb between the hosts but the hosts only use their local appliance so no cross hosts iSCSi traffi...

Hi, I have 2 identical ESXi 8 hosts that get the same issues both are using an active/active (syncrhronus) starwinds vSan with 2.5Gbps sync network (gigabits per second) The drives are 990 Pro NVMe drives Directly on the drive in VMWare using crystal disk mark I get about 2.5GBps (GigaBytes per seco...