Does Software Change Manager currently support AIX 7?
CA Harvest SCM on AIX 7.x
CA Harvest SCM versions 12.1 SP3 and higher can be installed on AIX 7. For SCM version 12.1 SP3 you will need to download a version of the PEC 4.7.4 installer that is compatible with AIX 7. For SCM versions 12.5 and 12.6 this extra step is not necessary.
More information about compatibility of CA Harvest SCM with various operating systems, databases and other type of software can be found in the Compatibility Matrix Index for CA Harvest SCM.