So i installed a new 80gb harddrive and am now in the process of copying over 30gb worth of songs on to it and the timer on the HyperTerminal is registering 6:12:30!!!!!

i just cant beleive that it is taking this long!

ill keep u posted as to how long it took to finish...

Ed

30 GBytes * 8-bits/byte = 240 Gbits @ 5Mbits/sec = 48000 secs = 800 mins = 13.3 hours. numbers corrected.

Cheers

just finished at 6:38!!!!

Mark, I know this is right. Can you explain why the 50% rule is a good rule? Why isn't it 10Mbit/sec?

Jim

Can you explain why the 50% rule is a good rule? Why isn't it 10Mbit/sec?

Hmm, yes, especially since Ed's transfer, if it really was 30 GB, apparently ran in about a third the estimated time.

Ooops... wait a minute.

30 GBytes * 8-bits/byte = 320 Gbits @ 5Mbits/sec = 64000 secs = 1066 mins = 17.8 hours.

Umm, wouldn't that be 240 Gbits, and 13.3 hours at 5Mbits/sec? That would make Ed's reported 6:38 transfter time exactly 10Mbits/sec.

tanstaafl.

Well, presumably Mark's calculations assume he's using ethernet, but since he's using hyperterminal(a windows specific clue Mark's likely to have missed) he's probably copying drive to drive. Which would mean the transfer time would be limited by the empeg's bus. Of course, Mark probably could estimate the speed of the empeg's IDE better than most everyone here.

As to why one assumes 5Mb per seccond, 10bT refers to the wire speed, and every protocol on top of that adds some overhead. (each ethernet frame has a header with the mac addresses of the sender and destination, each IP packet contains quite a bit of header information, and so on...)

Matthew

the transfer was done drive to drive via hyperterminal...also..while i am on the subject...i left one of the older harddrives in the player. however, i noticed that the drive physically makes a noise when i shake it back and forth (removed from the player of course)..it sounds like there is something sliding back and forth inside...t0his isnt the case with the new drive...

is this old drive on the verge of crashing on me and if so should i copy those files to the new drive as well?

thanks,

Ed

Ahh.. so directly drive to drive inside a single player. In that case, the transfer speed could have been as high as EDIT: 2.7 MBytes/sec, which is what I just now measured as the throughput from the IDE interface on one of my Empegs.

At that speed, a 30GB read would take as little as 3 hours. But the copy program is probably slower than that, and the IDE bandwidth would be split between reading from one drive and writing to the other, doubling the copy time to a little over 6 hours.

Cheers

good...thanks! shaking has ceased!!

I imagine that if you read the label on the drive, it'll tell you that the rattling is normal. I've yet to see a laptop hard drive that didn't say that on it.