DSM-G600, DNS-3xx and NSA-220 Hack Forum

What network? wired? wireless? 100Mbps? 1Gbps? 1.5 gigabytes or bits? How many files?

Assuming it's 1.5 gigabytes, that translates to 6.25MB/s TX and 1.79MB/s RX if my calculations are correct... That's a bit slow if you are on a wired connection. Maybe you are transfering a huge number of files, the overhead of which is significant. Also, there shouldn't be that much of a discrepancy between TX and RX speeds.

On a 100M LAN, my DNS-323 pulls around 11-12MB/s, which pretty much saturates the network. On a gigabit Ethernet LAN, it pulls up to 17-18MB/s depending on file size. BTW, these speeds are both read and write.

Last edited by blahsome (2008-04-27 18:34:25)

Me bad, had a lose socket while doing the testing so it was originally giving me 100mb performance, but i've went around and rectified it and did more testing

Dr Eric Forbin wrote:

I've have benchmarked these boxes extensively using all available storage configs they support.  17-18 megabytes a second are what you're going to get on a gig lan, period.

17-18 megabytes a second .... period.  That's a strongly worded statement.  I'd say 17~18 MB/sec on gigabit sounds in line with what I see day to day, but, I've been able to reach 20~21 MB/sec, so I wouldn't agree with it.

You need to remember that a file copy has a source, a destination, and a transfer medium - and the transfer speed can be no faster than the slowest of them all - unless you provide information on all three, the results really don't mean that much.

The other end of the copy can also have a major impact - I've found that some Realtek gigabit cards, when used with native Windows drivers provide throughput that would be considered sub par for a 100 mbps LAN, and show significant improvement when used with the manufacturer's drivers.  Disk fragementation can also hold the numbers down.

Oh - my tests were done in my standard home environment - network switch is a Netgear FS728TS, both devices connected to gigabit ports and the other end of the transfer is an IBM xSeries 206, with an onboard Intel gigabit card, running Microsoft Windows Server 2003, fresh install, minimal disk fragmention, disks at both ends are identical Seagate 7200.9 Barracudas.