Benchmarking each drive with HDtach 3 is useful to test the
performance of the individual disk drives and interfaces. Poor
results may well indicate why the data rates the OP is experiencing
are lower than expected.

However, even if the benchmark results are acceptable, you should
*not* expect that such transfer rates will be achieved by a 'real-
world' application program.

Example: One of my systems has two hard drives. HDtach reports
average transfer rates of more than 50 MB/sec for each drive. A
drag and drop copy of a large folder of files between the two
drives runs at average 7 MB/sec.

================================================== ================


"Jim" <null@null.com> wrote in
news:UiOgf.17717$qw.11540@fed1read07:

> A typical SATA/PATA (non WD Raptor) HD today should be at least
> 25-35MB/sec. Either your calculations are incorrect, or
> something else is going on there. You might want to check out Hd
> Tach 3 (
> http://www.simplisoftware.com/Public...request=HdTach )
> and make sure things are working normally.
>
> Jim
>
>
> "David G" <david_g99352@yahoo.com> wrote in message
> news:OhwJOr77FHA.3752@tk2msftngp13.phx.gbl...
> My Dell 8400 came with a SATA HD, and I installed a second
> parallel ATA HD to use for data backup. I am experiencing data
> xfer rates from the SATA drive to the backup of around 1.5 - 1.6
> MB/sec. Does this seem right? Seems slow to me. Is there
> something I can do to speed up the xfer rate?
>
> TIA
> David
>
>