Recent content by alphaa10

GOOD NEWS, AT LAST Thanks to all, especially poster dustNbone, who all but found the problem with a shrewd guess based on his experience with bad cables and drive adapters. As it turns out, the problem was two faulty SCA-68 drive adapters, which left me with two drives running at speeds like...

QUESTIONS FOR ANYBODY More detaills about my diagnostic-- 1. The Adaptec 39160 controller auto-terminates the 68p LVD cable, but the other end of the cable is served by a terminator which I believe gets power from the cable (ie. from the adapter, whose SCSI Select assignment is terminator...

dustNbone said, "The cable is apparently OK for 80, so I'd look at the SCA adapters. I've had ones that were rated for 160 not want to go over 80, replacing with an apparently identical one fixed it. The cheap ones seem to be inconsistent." ---- That was your key comment for my diagnostic...

You have helped the diagnostic a great deal-- as a result of your comment about the cable and SCA adapter, I have determined I have vintage 2000 SCA-80 adapters that are not at least U160 certified. Although the two SCA adapters and the two LVD/SE multimode IBM DNES 318350 drives were sold...

Thanks for the excellent news-- if anything needs to be replaced, this is the least expense possible (other than a mis-jumpered drive). The news is also comforting-- I have run SCSI for several years, and am familiar with normal setup, as well as routine mistakes (I've made many of them, at some...

I have an Adaptec 39160, and its data rate suddenly went from 80 MBps to 40MBps when I added a second, but identical drive on channel A. Of course, I have checked all the usual suspects, including making sure jumper settings on the two drives match (except for SCSI ID), and even restoring the...

Ender, this forum lacks an obvious button to post a new thread. Yes, I am a newbie on this forum, so need directions. Thanks