23-11-2011 21:41 - edited 23-11-2011 21:58
My 16GB N9 while in Mass Storage Mode goes as fast as 3MB/s (Writing on avg) no matter if its one big file or multiple small files however it gives back the same file on different partition on HDD at 21MB/s (Reading on avg).
Copying a 866MB file TO N9:
Getting the same file back to a different partition on HDD:
Not a huge problem for me but I'm interested to know if its normal, can anyone with 16GB model check this for me please?
PS. Tried all USB ports available on my laptop.
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Thanks grschinon for reply, I'm actually not concerned about the difference between Read/Write speed as you said that's perfectly normal but Write speed doesn't seem right to me. Did a little bit of research and I came to this post http://shootspeak.com/2011/10/09/nokia-n9-performa
Tried it on another Win7 PC with same results.
yes, it should be better ... I just copied avi file to my N9 ... from Windows 7 32-bit ... write 14,5 - 15,5 Mb / s. (it is nice, good enough for me) and I checked read too, 22,5 - 25,5 Mb / s.
Tried Mint 11 live usb, unfortunately same result. I've attached kern.log file below. Please note this was taken from live system after I finished my testing. Looked upon it but couldn't find anything "telling" and that tells how advance I'm with Linux
I also have this problem. Writing speed is only 3MB/s on mass storage mode. However, when I choose sync & connect option the speed is normal. I copied a 700 Mb file in about a minute, which is ~11.5 MB/s
27-11-2011 21:10 - edited 27-11-2011 21:15
Did the reset (Clear device) but it didn't turned itself back "on" afterwards which I think it should after a successful reset. Anyway back to the topic, tested USB speed, same result!!
Formatted the disk volume while mounted in Windows and it worked, 14 MB/s avg. Still not sure what was the reason and I'm afraid if I "Reset" it once more for testing purpose it'll be problematic again.
Edit: Please remember to backup your data before formatting the drive if you have similar problem.