The Logic Off Topic list

--- In exs-users@y..., david@f... wrote:
I thought I heard someone talking the other day about Raid0 for IDE 
drives. What is this all about, is it true? Can anyone point me toward 
info, and cost of this system?

thanks,
df
--- End forwarded message ---

David Floyd wrote:
>I thought I heard someone talking the other day about Raid0 for IDE 
>drives. What is this all about, is it true? Can anyone point me toward 
>info, and cost of this system?
>
>thanks,
>df

There is a review of the new Adaptec 2400A ATA Raid adaptor on 
www.storagereview.com

They compare it with a 3ware product which is a little cheaper and some of
the cheap Promise/Abit products.

The Adaptec and 3ware are higher end products $300 US -- but have fast
processors onboard so as to reduce CPU loading compared to the cheaper
models. They achieve over 100 MB per second sustained transfer in the tests
with 4 ATA drives which is the most they can use. 

This sort of performance is overkill for audio (I would have thought) but
very handy for Digital Video editing and database applications.

Regards,
Murray

From: Murray McDowall [mailto:murraymc@...]

If anyone can acheive 100Mb sustained transfer rate with 4 IDE disk drives I
will eat my copy of Logic audio (including manual, well actually, including
manual quite gladly, in fact please someone, prove me wrong!).

> The Adaptec and 3ware are higher end products $300 US -- but have fast
> processors onboard so as to reduce CPU loading compared to the cheaper
> models. They achieve over 100 MB per second sustained transfer in the
tests
> with 4 ATA drives which is the most they can use.

At 09:27 PM 18/06/01 +0100, you wrote:
>
>From: Murray McDowall [mailto:murraymc@...]
>
>If anyone can acheive 100Mb sustained transfer rate with 4 IDE disk drives I
>will eat my copy of Logic audio (including manual, well actually, including
>manual quite gladly, in fact please someone, prove me wrong!).
>
>> The Adaptec and 3ware are higher end products $300 US -- but have fast
>> processors onboard so as to reduce CPU loading compared to the cheaper
>> models. They achieve over 100 MB per second sustained transfer in the
>tests
>> with 4 ATA drives which is the most they can use.

Have a look at the review -- www.storagereview.com
This site is a pretty reliable source of info on storage.

-- they got 109MB in one section of the testing. They said that they were
surprised that the PCI bus could handle it. Sustained transfer rates on the
latest 7200 drives exceed 40MB/sec for an individual drive BTW. They report
that the Adaptec 2400A device has full SCSI style command queueing (that is
the only word in English with 5 successive vowels).

Y'might get more joy directing your skepticism to the guys on that site who
ran the tests -- see what they say. A CD with a paper chaser --- hmmm --
not very appetising;-)

Regards,
Murray