Re: ATA/100-HD and CD and ZIP-250 compatability

Re: ATA/100-HD and CD and ZIP-250 compatability


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Posted by Henry on December 05, 2001 at 14:30:44:

In Reply to: ATA/100-HD and CD and ZIP-250 compatability posted by Steve on December 05, 2001 at 11:40:40:

: I want to build a system with 4 drives. One ATA/100-HDD, one ZIP-250 ATAPI, one CD-RW, and one CD-ROM. With all these drives I will need to connect either a ZIP or CD as a slave on the same channel as the ATA/100-HDD. Will I give up the ATA/100 data transfer rate for the HDD if I do this? Come to think of it, will it even work at all?


SHOULD work; you will probably want to try different configurations unless you know your drive specs. Seems unlikely that you will see much, if any difference if all of your hardware is "recent"; old stuff might have compatibility problems. When you are transferring data between devices the slower one ALWAYS limits the transfer rate.

I don't understand why you are excited about ATA/100; ATA/66 is only MARGINALLY slower than ATA/100 and is about HALF the cost of ATA/100. ATA/100 or the newer ATA/133 interface will run real fast until the cache runs empty; that is only about 20 MILLISECONDS (1/50 second) for 2MB cache and ATA/100 (15 ms for ATA/133). When the well runs dry (empty cache) your interface can only transfer what the platters can deliver, that is, the sustained data transfer rate. The fastest IDE drives sustained DTR is a lot LESS than 66 MB/Sec (check YOUR HDD specs).

Please post and tell us how this works out for you.

Hope this helps,
Henry



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