pfeifer@hpavla.avo.hp.com (Mark Pfeifer) (01/01/91)
Happy New Year, everyone! I don't know if this is exactly the rightplace to ask this, but... A friend just gave me a Seagate ST-4051 full height 40Mb disk (it wouldn't work RLL, so I got it). He just gave it to me bare. Does anyone have any technical info on this drive? I'd like to know the meaning of each of the jumpers most of all. I moved a few around and got it to work, but I'd like some more information. While I'm at it, one more question. I have a Seagate ST-225 drive that is also installed in the system (now as the second hard disk, D:). I have a tower case, and had the 225 directly above the 4051 - and started getting read errors on the 225. I moved the 225 three slots higher, and have not experienced the problem again. Is it possible for adjacent hard disks to interfere with each other (magneticly)? Thanks for any help. Mark
dougm@palomar.SanDiego.NCR.COM (Doug Marshall) (01/06/91)
In article <15330001@hpavla.avo.hp.com> pfeifer@hpavla.avo.hp.com (Mark Pfeifer) writes: >A friend just gave me a Seagate ST-4051 full height 40Mb disk (it wouldn't >work RLL, so I got it). He just gave it to me bare. Does anyone have any >technical info on this drive? I'd like to know the meaning of each of the >jumpers most of all. I moved a few around and got it to work, but I'd like >some more information. > Mark, You might give the Seagate Tech Support BBS a call at 1-800-468-3472. I saw this number posted to the net a few months ago. >While I'm at it, one more question. I have a Seagate ST-225 drive that is >also installed in the system (now as the second hard disk, D:). I have a >tower case, and had the 225 directly above the 4051 - and started getting >read errors on the 225. I moved the 225 three slots higher, and have not >experienced the problem again. Is it possible for adjacent hard disks to >interfere with each other (magneticly)? I had the exact same problem with two ST238s. With one mounted directly above the other, it would have all kinds of problems. Then again, it may be that there is no metal plate separating the two drives - there are just holes for mounting the drives on the sides of the supports. I was successful in mounting them side by side. My guess is that there is probably some sort of magnetic inteference(?). Cheers! -- Doug Doug Marshall <Doug.Marshall@SanDiego.NCR.COM> * My humble opinions and +1 619 485 3494 <...!ncr-sd!palomar!dougm> * ideas are just that. "All of us is smarter than each of us!"
kraus@motcid (David Kraus) (01/11/91)
Distribution: In article <1991Jan5.215411.14174@SanDiego.NCR.COM>, dougm@palomar.SanDiego.NCR.COM (Doug Marshall) writes: > In article <15330001@hpavla.avo.hp.com> pfeifer@hpavla.avo.hp.com (Mark Pfeifer) writes: >>While I'm at it, one more question. I have a Seagate ST-225 drive that is >>also installed in the system (now as the second hard disk, D:). I have a >>tower case, and had the 225 directly above the 4051 - and started getting >>read errors on the 225. I moved the 225 three slots higher, and have not >>experienced the problem again. Is it possible for adjacent hard disks to >>interfere with each other (magneticly)? > I had the exact same problem with two ST238s. With one mounted directly above > the other, it would have all kinds of problems. Then again, it may be that > there is no metal plate separating the two drives - there are just holes for > mounting the drives on the sides of the supports. I was successful in > mounting them side by side. My guess is that there is probably some sort of > magnetic inteference(?). I had two ST238s running one above the other for about 2 years. I initially experienced the same thing - D drive (the upper of the 2) would get REAL flakey after being run a little while. Hung a muffin fan in front of the 2 drives (blowing through the faceplates no less) and had no problems afterward. So, it looks to be a heat problem with the ST225/ST238 design. Now I'm running them to a separate case with their own power supply and 6-foot long controller cables.... -- Dave Kraus UUCP: ...!uunet!motcid!kraus Motorola Cellular Infrastructure Division FidoNet: 1:115/934.5 Disclaimer: My employer's views and my views may necessarily differ. Quote: "PARDON me, am I speaking ENGLISH?" - Zippy