Is there any option to monitor Retain with Nagios?
The client is especially concerned about being able to avoid, in advance, situations such as the expiration of the license, the entry of the system into maintenance mode due to lack of space on the index disk, for example.
Re: Nagios monitoring
technically there isnt an integration point, however when Retain is setup, you can define and email address to receive all system communications. That communication will contain many data points, including the ones mentioned in your post.