Hi,

I increased vmalloc to 384mb on both servers, but the problems still exists.

Code:
2097152000 bytes (2.1 GB) copied, 473.446 s, 4.4 MB/s
Both servers are connected directly through crossover cable (eth3 on both, 1 gbit/s). The iSCSI initiators are accessing the source through eth4 & 5 (bonded, 2 gbit/s).

Any ideas?