Urs,
If you are using the Snap Creator scheduler you can get some of what you are looking for using the schedList action in Snap Creator.
This shows you information about the schedules including success/fail and last run time as well as schedule details.
Here is an example:
[root@lyon scServer4.1.0c]# ./snapcreator --server localhost --port 8443 --user admin --action schedList
INFO: Missing option --passwd
Enter password:
########## NetApp Snap Creator Framework 4.1.0 Scheduler ##########
### Id ### ### Name ### ### Active ### ### Profile ### ### Config ### ### Policy ### ### Action ### ### Frequency ### ### Last Run ### ### Last Run Time ###
2 OraSched true Oracle nfs11g DAILY backup daily successful 2013-09-09T08:39:58.005-04:00
3 LyonDaily true Domino Lyon_SC DAILY backup daily successful 2013-09-09T08:41:45.576-04:00
4 TampicoDaily true Domino Tampico DAILY backup daily successful 2013-09-09T08:47:13.490-04:00
5 LyonBad true WDS LyonWDS DAILY backup daily failed 2013-09-09T08:42:46.652-04:00
[root@lyon scServer4.1.0c]#
NOTE: in the above I left out the password which prompted me for it.
Alternatively you can run ./snapcreator --credentials which will prompt you for and cache: server, port, user, and password
OR, you can use ./snapcreator --pwdCrypt which will prompt you for a password and will result in an encrypted version of the password that you can use in a script.
This may not get you everything that you need, but hopefully it helps!