Orange Pi Lite USB HDD to USB HDD speed under truecrypt

[harry_q]

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~! ^^

[tkaiser]

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

[zador.blood.stained]

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

[harry_q]

  On 11/27/2016 at 3:11 PM, zador.blood.stained said:

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.

[zador.blood.stained]

Also what filesystem is inside the container? NTFS?

[harry_q]

  On 11/27/2016 at 3:33 PM, zador.blood.stained said:

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, 2016 by harry_q

[tkaiser]

  On 11/27/2016 at 11:24 PM, harry_q said:

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.