The HBA is 8 Gbit and i should get at least 50 % as i belive the Utilization graph is for full duplex and i'm only reading data.
There is no difference if i use the proxy itself as the target for backup or if i replicate to an ESXi host, I still get the exact same speed.
The server is a IBM x3650 M3 with 2 x 4 Core with Hyperthreading and 24 GB of ram. Local disk is 13 x disk Raid 5. The server is running Windows Server 2008 R2 SP1.
This is what i tried so far:
Latest Veeam update
Latest Windows updates
Latest Qlogic Firmware
Latest Qlogic Storport driver
Latest IBM firmware for the machine
Latest IBM MPIO drivers
Activated 64 bit DMA in registry
Set Queue depth to different values
Moved the card to different PCIe slot
Tried a different card of same make and model
Checked PCIe bus is running at right speed
Cleaned SFP on fiberswitch
Cleaned cable and HBA
Tried brand new FC cable
Checked local disk speed (good)
Tested bus speed internally on the Veeam Proxy
Testet 10 Gbit card (higher speed)
Checked bios settings
Checked for errors on Fiberswitch and HBA
Checked speed between storage and ESXi host (Full speed (Double of the Veeam server)
Anything else that someone can think of that i haven't tried ? It seems to me that the speed is capped somehow on the Windows machine and i can't find out where it is.
Any help no matter hos obvious would be appreciated
