unable to see or delete maintenance mode schedules

Document ID : KB000118566
Last Modified Date : 26/10/2018
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Issue:
There is a maintenance mode schedule currently applied to a device which we need to remove. However when we access the maintenance mode schedule dialog, the "current schedules" list is empty.
Environment:
Spectrum 10.2
Linux OS
Cause:
The list of maintenance schedules created over time has grown to be quite large, consisting of up to or perhaps exceeding a hundred schedules. The "current schedules" portion of the dialog is not populating due to the total list of available schedules being too large. 
Resolution:
It is recommended to delete some unused and unecessary schedules to reduce the total amount of available schedules. You can do this one of two ways. 

1. In OneClick, go to Locator > Schedules. Pull up all Schedules and delete ones you no longer need

2. go to VNMSH shell: in SpectroSERVER, log into a Bash shell and nav to <SPECROOT>/vnmsh
./connect
./show models | grep -i schedule

This will show all available schedules. Destory ones you do not want
./destroy model mh=<schedule handle>