Server differences
We have moved users from michelob and dark to the newer budlight and will turn off the aging michelob and failed dark servers. Newer hardware and software might be installed later to replace michelob and/or dark, but they will not be the main servers for user activities, only for experimentation by users.
General environment and configuration differences between systems.
The default language on budlight is the case-insensitive "en_US", which affects sorting, directory listings, pattern matching, and many other text related operations. On michelob and dark, the default language is the traditional case-sensitive English. To continue to use the traditional language, change language related environment variables to "C". Examples of variables to change are LANG and LANGUAGE.
User home directories are shared between michelob and dark, but budlight is separate and does not share home directories with any other system.
On michelob, users can do their own restores from the latest backup by looking in /backup01/homecopy1/$ID, which is a copy of the home directory. Due to space limitations, no backups are kept on dark.
Backups and restore on budlight are TBD.
The ncurses package is not installed on dark, and the one on michelob is old. Support for color terminals is limited, but one TERM you can try is "aixterm".
X client applications are not installed on budlight.
Most commands will have different versions, support libraries, default options, etc. between systems. Most will not affect how they are used, but some will.
The commands, man pages, configuration files, etc. will be in different locations. If they are available for general use, the directories should all be in $PATH or $MANPATH, so this should be transparent. Programs and man pages installed in /opt usually have a symbolic link from the corresponding directory in /usr or /usr/local.
Executables might be in /usr/bin, /usr/local/bin, /opt/_/bin, etc.
* Man pages might be in /usr/man, /usr/local/man, /opt/_/man, etc.
Configuration files might be in /etc, /usr/local/etc, /etc/opt/___, etc.
Known commands where the difference between systems is important. This is not a comprehensive list, only the highlights.
Known commands that are not on all the systems.
md5sum is not installed on dark.
wget is not installed on dark.
pine is not installed on dark.
whois is only installed on dark.
slrn, tin, and trn are only installed on michelob.
elm is only installed on michelob.
The Apache web server is not installed on michelob.
sendmail is not installed on budlight, it has postfix instead.
procmail is not installed on budlight.
There are spamd daemons on michelob and dark, but not budlight. This is for use of the spamc command instead of the spamassassin command for faster performance when scanning for spam.