Often pre installation checklist items for installing packages include semaphores and shared memory. Documentum requires semaphores to be enabled and at least 2GB RAM.
1. Check semaphores are enabled. This is a preinstall requirement.
In AIX: $ipcs -s
will return rows, if enabled.
2. Check base amount of RAM is available
In AIX: lsattr -El sys0 | grep realmem
Will provide the amount of memory in KB. I believe a min of 2 GB is required for Documentum on Unix (at least true for 5.3).
