chip@pender.ee.upenn.edu (Charles H. Buchholtz) (07/25/90)
Pender, our Sun 4/280, provides number crunching, compiling, X clients, editing, and email for about 150 users, with at most maybe 20 logged on simultaneously. The number crunching programs are niced way down so that they don't interfere with interactive work and NFS. It also provides file service for one diskless 3/50, 8 diskfull 3/60s, and a diskfull 4/360. The diskfull machines have local root, swap and tmp, and the rest is NFS mounted from Pender. Here are my questions: 1) We are considering adding 5 diskfull SS1+s to Pender. How will this effect Pender's performance as a number cruncher? 2) If we upgrade Pender to a 4/490, but keep the same disks and controllers (2 DK815-10s, 1 CDC 9720-1230, 2 Xy753 controllers), how will that effect the NFS? 3) How about if we upgrade to IPI controllers? 4) Omni Solutions is trying to sell me an NFS accelerator. Anyone have anything to say about it/them? I would prefer personal experiences, but I'm willing to listen to idle speculation, theories, rumors, etc. Email me and I'll post a summary if there is enough interest and content. Thanks, Charles H. Buchholtz chip@ee.upenn.edu Systems Programmer Electrical Engineering University of Pennsylvania.