Path: utzoo!attcan!uunet!mcvax!hp4nl!dutrun!dutesta!franky From: franky@dutesta.UUCP (Frank W. ten Wolde) Newsgroups: comp.sys.ibm.pc Subject: Disk Data Transfer Question Message-ID: <1228@dutesta.UUCP> Date: 29 Nov 88 14:37:44 GMT Reply-To: franky@dutesta.UUCP (Frank W. ten Wolde) Organization: DELFT UNIVERSITY OF TECHNOLOGY Faculty of Electrical Engineering Computer architecture and Digital Technique Mekelweg 4 - 2628 CD Delft The Netherlands Lines: 37 I would like to know your (NetLanders) opinion about the following: I have a AT&T 3600 (actually Olivetti M24) computer and a Seagate harddisk (ST251-1) using a Western Digital Controller (WD1002S-WX1). For optimum results I must set the interleave factor to 5, which slows down the data transfer rate (disk<-->host) to appr. 100K per second. Other people I have spoken to, have informed me that they run with an interleave factor of 3 (data transfer: 170K/s), on a "simple" ;-) IBM XT at 4.77MHz. I would think that my Olivetti (clock 8MHz) should be able to at least the same interleave(3)/transfer rate(170K/s), but for some reason it will not work properly. My questions are: 1. Is there someone out there who has the same problem? 2. Is there someone with an AT&T 3600 with a data rate of 170K/s (and a corresponding interleave of 3)? 3. Is there someone who can tell me where the problem originates and perhaps how to solve it? Thanks in advance, Frank ten Wolde franky@dutesta -- ########################################################################## Frank ten Wolde (PE1FCO) | UUCP: ..!mcvax!dutrun!dutesta!franky Delft University of Technology | Faculty of Electrical Engineering | Section Computer Architecture | Delft | The Netherlands | ##########################################################################