Large, multi-user Yohkoh sites may consider maintaining multiple sets of the Yohkoh Software on different machines. The main purpose of such a system is to allow software access from a backup system(s) in the event that the primary system is off-line (e.g., for maintenance, repairs, etc). The Yohkoh Software distribution includes scripts which allow automatic selection of a host. The file: $ys/site/setup/yspaths.config is a data file which is used by the Yohkoh startup script to dynamically assign the location of the Yohkoh Software system. This file is created during the installation procedure and initially just includes an entry for the machine and path where the Yohkoh Software is located. The script ys_newuser (see Section B.1) copies this to the home directory of Yohkoh users to allow access to the Yohkoh setup scripts. To define additional hosts at a given site, the Yohkoh site manager can edit the file: $ys/site/setup/yspaths.config. One line containing two fields should be added. The file is of the form:
host1 path1 # original contents
host2 path2 # second host added
(host3) (path3)
Where hostN is the hostname and pathN is the path location of
Yohkoh Software. An example of this file is
isass0 /0p/yohkoh
isass2 /2p/yohkoh_sw