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Old 07-03-2009, 12:55 AM   #1
saheelahamed
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Registered: Jul 2007
Location: Bangalore
Posts: 25

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how to check Speed(data transfer) of usb 2.0


Hi,

i would like to check at what speed data is transferring to my usb
if somebody knows about it please help.


Thanks and Regards
Saheelahamed.s
 
Old 07-03-2009, 06:12 AM   #2
marozsas
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Registered: Dec 2005
Location: Campinas/SP - Brazil
Distribution: SuSE, RHEL, Fedora, Ubuntu
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Can you loose the data on the usb drive ? After the test below you need to recreate the partitions and to re-create the filesystem (formating) again.
All data on destination will be destroyed ! MAKE A BACKUP FIRST !

write test:
Code:
dd if=/dev/zero of=/dev/your-usb-drive-here bs=1024
ah, have I mentioned you will loose all data on your usb drive ?

read test: the read test will not destroy data but it the same applies: MAKE A BACKUP FIRST !
Code:
dd if=/dev/your-usb-drive-here of=/tmp/data.img bs=1024
 
Old 07-03-2009, 01:22 PM   #3
tredegar
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Registered: May 2003
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Those commands might be more useful if the command time was prefixed:

Code:
time dd if=/dev/zero of=/dev/your-usb-drive-here bs=1024
Etc.
 
Old 07-03-2009, 04:36 PM   #4
NeddySeagoon
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dd provides a transfer rate when it terminates
 
Old 07-03-2009, 04:42 PM   #5
tredegar
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Quote:
dd provides a transfer rate when it terminates
Well I haven't used dd for a long time.
But thanks for the correction
 
  


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