Seagate FreeAgent GoFlex 1.5TB external HDD problems
Hans Petter Selasky
hselasky at c2i.net
Mon Jun 25 15:01:05 UTC 2012
On Monday 25 June 2012 00:22:54 maxim naumov wrote:
> On Sun, Jun 24, 2012 at 2:33 PM, Hans Petter Selasky <hselasky at c2i.net>
wrote:
> > Ok, then it is not a USB host problem.
>
> I am not sure I follow. to me that just proves that the HDD doesn't
> have an irrecoverable error on a particular sector. by irrecoverable I
> mean an error that would stop the HDD working altogether until power
> cycle rather than report a sector read/write error.
>
> the question what screws up the HDD remains. the HDD can get screwed
> up by itself due to a bug in firmware, but why doesn't it happen with
> windoze or GNU/Linux? pure luck?
Hi,
You should compare things like CPU usage and number of interrupts during data
transfer, before we could say anything for sure.
BTW: Maximum block size for USB 2.0 under FreeBSD is 64Kbytes.
BTW: You could try to make a simple c-test program that reads and writes
random LBA's from user-space, and see when it stops working.
--HPS
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