Dear people who understand networking better than me: I need a favor.
I have been obsessed with getting my local network here at my house running top notch the past few months. I’ll share more of my setup at a later date, but I have a couple issues that are really stumping me.
I have an ASUS RT-N12 router running DD-WRT. After some reading up and studying I am finally able to take advantage of my 802.11 N connection. Although DD-WRT doesn’t support the 5GHz radio (which means no 300Mb/s for me), I am able to consistently establish a 150Mb connection between my devices now.
I have a Raspberry Pi connected to a 1TB HDD (SATA dock > USB) that, among other fun things, primarily shares that disk out via SMB. I have all my DVD and Blu-ray rips on there so I can stream them over the network, and we also use it for general network storage. The Raspberry Pi is connected to my router via standard Cat5e cable.
Now to the essence of this post: I have noticed that reading and writing from that HDD has been slower than it should. I cannot, to save my life, figure out it out.
My two big questions are as follows:
1) Why is the data transfer speed not consistent? Why are there so many ups and downs in that graph? Is this normal?
2) Why is the speed so low? On a 150Mb connection, why am I only getting at best ~20Mb/s? (Transfer speed on the copy dialogue shows 1.7MB/sec. 150Mbps/8=18.75MBps, so shouldn’t I get 15+ MB/sec? )