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echo: novell
to: HARRY OLDENHUIS
from: FRANK RAMSEY
date: 1997-02-06 19:51:00
subject: Re: SCSI bus hangs

 HO> Hallo Frank
 AM> Hi, we've recently installed a Quantum 4.3 gig SCSI drive 
 AM> replacing a CD-ROM drive on our SCSI chain whichs operates 
 AM> at 5 MB/s from a Buslogic BT445S (VLB) controller running 
 AM> the 2.53 .DSK driver under NW 3.12.
 FR> Check to see if anything in the server is using INT 15. 
 FR>  If so, change it.  
 FR> You didn't mention how much memory you've got, but with 
 FR> 4 gigs, I'd suggest 40 megs minimum.
 HO> Gee Frank, I have a Conner 4.2 gig SCSI drive hanging off NW 4.1
 HO> and only 16 megs of ram, the system is running at 
 HO> 1% to 5% utilization.
 HO> I would say it depends on what programs you run and how many users
 HO> are on the server.
 HO> Cheers Harry
Memory is not really a utilization issue.  What is the number of cache 
buffers free?  Bet it's REALLY low.  Which translates into better 
performance.  Course, if you only have one or two clients connected to the 
file server, lite memory isn't as much of a problem.
We've got an 80 gig file server with 512 megs of memory. 
framsey@goodyear.com; CIS 71631,1032 - CNE, CNA-4, PE
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