flur@eecom.gatech.edu (Peter W. Flur) (04/11/91)
I am using an exabyte attached to a Sun for dumps of several different types of machines on our network including Suns, NeXT's, Dec's, and HP workstations. When I dump from a Sun to the dump host (a Sun), every thing works great and the transfer is blazingly quick. However, when I do a dump from a NeXT (running 1.0a) or one of the HP workstations (running HP/UX), the dump works, but it is noticeably slower than dumping another Sun with larger disks. For example, a full dump of a NeXT with a 330MB (280MB used) drive takes roughly (these are estimates but close in magnitude) 45-60 minutes. A Sun with a 660MB drive (270MB used) takes less than 15 minutes. Both machines are dumped from the tape host through a shell script as follows: rsh workstation rdump 0nubsdf 1024 6000 54000 tapehost:/dev/exabyte /partition where the obvious substitutions are made with the appropriate names. Can anyone offer a reason why these other machines are significantly slower than the suns, and more importantly, can someone offer a solution to speed them up? Thanks, Peter -- ----------------------------------------------------------------------- Peter Flur, Research Engineer Georgia Institute of Technology School of Electrical Engineering, Atlanta, GA 30332-0250 E-MAIL: flur@ee.gatech.edu PHONE: (404) 853-9355 ----------------------------------------------------------------------- DUKE UNIVERSITY 1991 NCAA BASKETBALL CHAMPIONS!!!