TrueNAS -> ProxMox slow network and read/write performance

Hey there,

i tested and googled some settings and got a little push up for write/read performance but its not that good. Via iperf i cant even get higher than 1.7 mbits/sec from the storage to the proxmox ve.

My TrueNAS Server:

TrueNAS Core 12.0-U5.1

HP DL380e Gen8

Intel Xeon CPU E5-2450L

128 GiB RAM

Intel X520-DA2 Dual-Port 2x 10GbE-LAN SFP+ PCIe x8 E10G42BTDASATA (single used)

HBA LSI Megaraid 9201-8i 6G PCIe x8 Gebraucht IT Mode ZFS FreeNAS 6Gbps

The Server uses an Hard Drive...

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