Just wondering what speeds others get to their DSSv6 iSCSI system?

This is running on a debian linux system with storage on the iSCSI system:

Write speed:
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srs:/home/icepick# time dd if=/dev/zero of=./testfile bs=65536 count=65536
65536+0 records in
65536+0 records out
4294967296 bytes (4.3 GB) copied, 86.8138 s, 49.5 MB/s

real 2m21.071s
user 0m0.030s
sys 0m8.060s


Read speed:
########
srs:/home/icepick# time dd if=./testfile of=/dev/null bs=65536 count=65536
65536+0 records in
65536+0 records out
4294967296 bytes (4.3 GB) copied, 46.5702 s, 92.2 MB/s

real 0m46.575s
user 0m0.020s
sys 0m0.830s
srs:/home/icepick#

I'm happy with the read speed, but not the write speed.