oliver@karakorum.berkeley.edu (Oliver Sharp) (03/12/91)
Hi ... I'm thinking about putting a SCSI drive in my machine together with an SVR4 UNIX (Dell or ISC). I'm wondering if any of you have experience with some of the smart controllers and have comments on their performance in comparison to the Adaptec 1542B. I talked to PSI about the hyperStore and they said it works fine with ISC and they are working out some problem with the Dell driver. This was a few weeks ago, so they may have gotten it squared away by now. What I'm most interested in is fast compiles and fast swap. I'd appreciate any comments along the lines of: - the PSI turns your machine from molasses into greased quicksilver - if you are rich, go for it, but it is a marginal improvement - don't bother. I've mostly looked at the PSI but I'd also be interested in comments on alternatives like the DPT. I will summarize responses to the net ... - Oliver P.S. I posted the same question to the scsi group, but didn't get any responses.
emanuele@overlf.UUCP (Mark A. Emanuele) (03/14/91)
I've had an early PSI board in my 386 and it sped things up somewhat, but I was running it in ST506 mode. The drivers weren't ready for it yet. It also used to lock up from time to time with a power down required to reset the machine. I had one of the Original boards and they are upgrading me now to correct the problem. They also say that the new SCO UNIX drivers will make it run about 10-20 times faster than before. I would be also running in DMA mode. -- Mark A. Emanuele V.P. Engineering Overleaf, Inc. 218 Summit Ave Fords, NJ 08863 (908) 738-8486 emanuele@overlf.UUCP