Going from Fast Ethernet to Gigabit Ethernet

5 September 2010 595 views No Comment

My first Gigabit switch, D-Link DGS-1005D

D-Link DGS-1005D

I ran into challenges when i tried to implement my vision of a central storage with hardware redundancy. I tried to move my RAID 1 (or mirrored) 1.5TB hard drives from my PC to the D-Link DNS-323. The hard drives already contained around 1.3TB of data that i have collected from the past years. The backup was painfully long and made me think twice about data restoration. What if i upgrade to gigabit network? You know, just a small high speed data high way between the DNS-323 and my PC so that i can transfer my backup data quickly between the two devices? I decided to do some experiment with the result below:

100 Mbit (My Prolink H9300G ASDL router)

Direction	Data Size	Time (seconds)	Throughput (Mbit/sec)
NAS to Windows	1.2GB	180.8	68.68
Windows to NAS	1.2GB	196.2	63.29
NAS to Windows	83.3MB	9.8	85.8
Windows to NAS	83.3MB	12.7	66.53

Gigabit

Direction	Data Size	Time (seconds)	Throughput (Mbit/sec)
NAS to Windows	1.2GB	140.1	88.64
Windows to NAS	1.2GB	169	73.45
NAS to Windows	83.3MB	9.5	88.63
Windows to NAS	83.3MB	11.6	72.43

Gigabit with Jumbo Frames

Jumbo Frames 4088

Direction	Data Size	Time (seconds)	Throughput (Mbit/sec)
NAS to Windows	1.2GB	144.4	85.99
Windows to NAS	1.2GB	149.1	83.29
NAS to Windows	83.3MB	6.5	129.22
Windows to NAS	83.3MB	9.2	91.49

Jumbo Frames 9014

Direction	Data Size	Time (seconds)	Throughput (Mbit/sec)
NAS to Windows	1.2GB	113.208	109.69
Windows to NAS	1.2GB	229.630	53.9
NAS to Windows	83.8MB	7.7	109.08
Windows to NAS	83.8MB	13.098	64.0