We upgraded one of our primaries to ZCM 2017 (from 11.4.3). Ok. Just a warning we had one XP still around ...
On /vastorage disc I have around 17GB free space. Dir /var/opt/novell/zenworks/content-repo/system-update size is around 20 GB. Too much, don't You think? Including ...
3.0G 5011030200fc50000000002014121014 (for 11.3.2)
3.6G 5011040000fc50000000002015073012 (11.4)
3.9G 5011040100fc50000000002015121012 (11.4.1)
4.2G 5011040200fc50000000002016051914 (11.4.2)
5.0G 5011040300fc50000000002016100814 (11.4.3)

Via ZCC in Configuration System Updates under section Available System Updates I see listed "Mar 2017 PRU" and "Update for ZENworks 2017" which is ok. In section Deploying System Updates I see listed much more ...
Update for ZENworks 2017
Update for ZENworks 11 SP4 (11.4.3)
Update for ZENworks 11 SP4 (11.4.2)
Update for ZENworks 11 SP4 (11.4.1)
Post 11SP4 Update Prereq
Update for ZENworks (11 SP4)
Update for ZENworks 11 SP3 (11.3.2)
... and corresponding numbers on every row. From menu is option to cancel ... but does this remove item from list and also directory mentioned above from disc? Or must I delete dir's manually? I'm not sure how to accomplish this task (remove obsolete item from list and dir from disc) in more proper way.
More thanks, Alar.