cgordon@vpnet.chi.il.us (Gordon Hlavenka) (06/27/90)
>And, I suppose if I really expect to use the drive, I need to know the >total number of cylinders, heads, starting reduced write current and >write precomp cylinder. Anyone have a chart of Seagate drive specs, or >know where I could call or write to get this data? I believe the 506 was a 5-meg unit. I don't have the book on it, but I do have the books on the 600 series and the 700 series. Best I can do is give you specs for those, and maybe it will help. I think they will be similar; just the environmentals change and the 700-series is half height. (???!) Model Unformatted Formatted Cyl heads Precomp Reduce Wr SA602 3.33 MB 2.70 MB 160 2 128 --- SA604 6.66 MB 5.40 MB 160 4 128 --- SA606 10.0 MB 8.11 MB 160 6 128 --- SA706 6.40 MB 5.00 MB 320 2 128 Auto SA712 12.7 MB 10.3 MB 320 4 128 Auto I would guess that the SA604 might be similar to the 506... The 700 series is RLL-capable and actually has 350 usable cylinders. I've had 2 712s running for 3 years now on a 2,7 RLL controller using 350 cylinders. This yields 18MB and change. I've had no trouble with them. According to the book, the 600 series has 180 usable cylinders (based on a ship zone at 182). I don't know about RLL on the 600s... ---------------------------------------------------------- Gordon S. Hlavenka cgordon@vpnet.chi.il.us Disclaimer: He's lying
Ingvar.Strand@ext.luth.se (Ingvar Strand) (06/28/90)
In article <26877b8f-282.2sci.electronics-1@vpnet.chi.il.us> cgordon@vpnet.chi.il.us (Gordon Hlavenka) writes: > >And, I suppose if I really expect to use the drive, I need to know the >total number of cylinders, heads, starting reduced write current and >write precomp cylinder. Anyone have a chart of Seagate drive specs, or >know where I could call or write to get this data? Here are some Segate info: ------------------------------------------------------------------------------ SEAGATE 800-468-3472 ------------------------------------------------------------------------------ MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENT ST125A 3.5" 21 404 4 - - 7.5 40 MS 26 ST125A-1 3.5" 21 404 4 - - 7.5 28 MS 26 ST138A 3.5" 32 604 4 - - 7.5 40 MS 26 ST138A-1 3.5" 32 604 4 - - 7.5 28 MS 26 ST157A 3.5" 43 539 6 - - 7.5 40 MS 26 ST157A-1 3.5" 43 539 6 - - 7.5 28 MS 26 ST-506 MFM ST125 3.5" 21 615 4 616 616 M 5 40 MS 17 ST125-1 3.5" 21 615 4 616 616 M 5 28 MS 17 ST138 3.5" 32 615 6 616 616 M 5 40 MS 17 ST138-1 3.5" 32 615 6 616 616 M 5 28 MS 17 ST151 3.5" 42 977 5 978 978 5 24 MS 17 ST206 5.25 FH 5 306 2 307 128 M 5 17 ST212 5.25 FH 10 306 4 307 128 M 5 17 ST213 5.25 FH 10 615 2 613 307 M 5 17 ST225 5.25 HH 21 615 4 616 616 M 5 65 MS 17 ST251 5.25 HH 42 820 6 821 822 M 5.0 40 MS 17 ST251-1 5.25 HH 42 820 6 821 821 M 5.0 28 MS 17 ST406 5.25 FH 5 306 2 307 128 M 5 17 ST412 5.25 FH 10 306 4 307 128 M 5 17 ST419 5.25 FH 15 306 6 307 128 M 5 17 ST425 5.25 FH 21 306 8 307 128 M 5 17 --> ST506 5.25 FH 5 153 4 128 128 M 5 17 ST706 5.25 FH 5 306 2 307 128 M 5 17 ST4026 5.25 FH 21 615 4 616 307 M This might help. ---------------------------------------------------------- Ingvar Strand ingsa@ext.luth.se Disclaimer: I guess it's my opinion, and no other's.