I know:

If save set passes browse policy, we can use nsrck -L7 or scanner to retrive the its index entry.

And if save set passes retention policy, we can also use nsrck -L7 or scanner to retrive the its index and media database entry.

question:

Is it necessary to use nsrmm to change its browse and retention policy every time before using nsrck -L7 or scanner? If it is not necessary every time, then when is necessary to do that?

my concern is if we do not use nsrmm to change its browse and retention policy first, even if we retrived index and media database entry by using nsrck -L7 or scanner, it will soon become recoverable or recyclable again because its browse and retention policy remained in a previous date. Or will the browse and retention policy be changed automatically after using nsrck -L7 or scanner? If so, how can that be changed?