i am using Proxmox 2.3 for years, on RAID1 mdadm. working great. all VMs hosted on local RAID working very fine with no issues. but recently i started testing ZFS/NFS on OmniOS which is a great OS. but when i started hosting our VMs for testing on NFS share i see very very slow network performance.
for testing i copy through shell command "scp" on NFS mount from both Promox and OmniOS ends which was working great. the problem starts when i create a VM on this NFS the performer inside VM which is windows 2003 server, copy and paste is very very slow. it is giving me only 2% out of 1GB lancard. means copying only 2GB data in almost 30 minutes. however, i have also got ubuntu server and i installed virtualbox on it for testing.i created the same setup as Proxmox and eventually i found good speed on VM hosted by Virtualbox on same NFS share as used by Proxmox. Virtual box machine is giving me 30 to 35% bump which is quite acceptable for me. almost like 300Mbps to 400Mbps would you guyz please tell me why it is happening. why i cant have same speed as virtualbox. and even from Proxmox/Debian console "scp" command giving me almost 50 to 60MB which is very good i think. any idea, please help. Thanks, myk
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