especially since TSM was originally renamed/rebanded ADSM .... and the runup to ADSM was workstation datasave (built on cms) and the precusor to workstation datasave was CMSBACK.
i had originally done CMSBACK at SJR ... for SJR and the HONE systems (which i was also provided a lot of support for) ... misc. past posts mentioning HONE (internal vm/based timesharing service providing online services for field, sales, and marketing worldwide) and/or APL (large part of HONE services were implemented in APL) http://www.garlic.com/~lynn/subtopic.html#hone some number of past posts mentioning backup/archive systems http://www.garlic.com/~lynn/subtopic.html#backup and various old email mentioning early CMSBACK activities ... which spread to some number of other internal installations besides SJR and HONE http://www.garlic.com/~lynn/lhwemail.html#cmsback