GELD@mail.physics.lsa.umich.edu (Jonathan Geld) (07/12/89)
Recently we received from Sun OS version 4.0.3 upgrade kits. We have had the 4.0 kit for a while now but have delayed upgrading due to all the bad reports we have heard about bugs and problems with OS 4.0 and 4.0.1. We are currently running OS v. 3.2 and are seriously considering upgrade. What I would like to know is if anyone has some caveats to look out for that might stop us from upgrading. We have a 3/160 running as a server for 13 3/50's. The server has 8MB of memory while the clients all have 4 MB of memory and are diskless. I seem to recall reading that 4 MB of memory might not be enough to run OS 4.0.x well, if so just how bad are the slow-downs with respect to 3.x? Also, since the clients are all diskless, is there a significant increase in ethernet traffic under 4.0.x? I ask this because joining our suns on the ethernet is a Local Area VaxCluster of 11 machines which causes the net to already be running at 20-30% of bandwidth. Thanks in advance for any information/advice anyone can give, and I will be glad to summarize all the info I get to the net. Jon Geld Systems Manager University of Michigan Physics geld@mail.physics.lsa.umich.edu - INTERnet geld@umiphys - BITnet mich::geld - HEPnet
jae@lll-crg.llnl.gov (John Eadie) (08/14/89)
In article <155@brazos.Rice.edu> GELD@mail.physics.lsa.umich.edu (Jonathan Geld) writes: >X-Sun-Spots-Digest: Volume 8, Issue 72, message 9 of 14 > >Recently we received from Sun OS version 4.0.3 upgrade kits. We have had >the 4.0 kit for a while now but have delayed upgrading due to all the bad >reports we have heard about bugs and problems with OS 4.0 and 4.0.1. > >We are currently running OS v. 3.2 and are seriously considering upgrade. >What I would like to know is if anyone has some caveats to look out for >that might stop us from upgrading. We have a 3/160 running as a server >for 13 3/50's. The server has 8MB of memory while the clients all have 4 >MB of memory and are diskless. I seem to recall reading that 4 MB of >memory might not be enough to run OS 4.0.x well, if so just how bad are >the slow-downs with respect to 3.x? Also, since the clients are all I have a 3/60FC and I just moved from 3.5 to 4.0.3. I gave myself 32MB disk space for a product called leonardo (big rasterfiles), and have had, at times, disasterous slowdowns. The OS seems very solid, and is nicer in many ways, but I'm goin to have to buy at least double the 4MB I currently am crawling with. Occasionally. ('Frinstance, when I get a submission to a mailing list of 35.) >diskless, is there a significant increase in ethernet traffic under 4.0.x? More later when I get 4.0.3 up on a 3/160C & 3/50 in the next couple of days ... -john John Eadie Computing Art Inc (416) 536-9951 E-Mail: jae@c-art.UUCP | {uunet,suncan}!c-art!jae | sun!jeadie `The aphorist, bending over the stream of language, found in it his own image: but the hump did not show, and his face, its traces of suffering softened by the ripples of water, was framed in trees and blue sky' .. Georg Cristoph Lictenberg