Hi,

 

Orange Pi Lite has two USB2.0 ports.

I attached 3.5" 5400rpm HDDs in each ports through SATA adaptors.

 

Both HDDs have truecrypted_file.tc respectively.

 

Mounted both .tc files with $ cryptsetup --type tcrypt ********

 

And $ cp HDD1/big_files HDD2/directory

 

Then chked file copying speed only to have 6.5MB/s in average.

 

Is it normal?

 

Thank you in advance~! ^^

You could try to run both 'sudo armbianmonitor -m' and htop to get a clue why it's so slow.

And given that there are no details about algorithm and block size used for this container, I would say on average this is normal

And given that there are no details about algorithm and block size used for this container, I would say on average this is normal

Oh! I missed much! Thank you for your advice. I'll try to collect some details of my environment.

 

FYI at the moment, just fresh dd jessy img installed this morning.

Also what filesystem is inside the container? NTFS?

Also what filesystem is inside the container? NTFS?

yes! NTFS, both of HDDs.

 

### FYI, raw data (not truecrypted) transfer between two rates 13.3 MB/s. (NTFS)

Edited November 28, 20169 yr by harry_q

yes! NTFS, both of HDDs.

 

Well, as already suggested both 'sudo armbianmonitor -m' and htop will show you clearly what's wrong. You use a filesystem that's slow as hell in Linux and add encryption on top. IO bottlenecked by CPU.