Log only objects changes / remove storage files

[gtsamis]

Good evening,

I need some help regarding object logging.

I have some objects that frequently sends group writes even without a value change.
Those objects are logged on the LM's Object Log and I am ending up with a bunch of records without any changes.
Is there any way that the logging will only happen if the object changes it's value?

Also can someone point the storage file location in order to remove unused ones?

Thank you in advance
George