Neil Schneider wrote:
Well that may be what the specs say, but real life experience says
different. In my experience, transfering IDE drives using dd on the
same controller will take overnight to complete, and there may be
multiple errors. Comparable transfers using scsi will take hours.
Drive size and speed all enter into the equation.
I just brought up a RAID 1 on PATA on a 500 Gigabyte disk in about 5
hours (effectively a full dd). Raw throughput on the disks (40
Mibibytes/s) would have made that about 3 1/2 hours by itself. The
machine is an old 750 MHz Celeron.
I also zeroed the old drives using dd. That took about 4 hours.
Of course, I use FreeBSD.
Perhaps this is an indictment of the Linux PATA drivers rather than PATA
itself?
-a
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