DSM Version: 6.1.4-15217

[aliasname]

(14-11-2017 11:55)simoncn Wrote:  It can take some time

That's why I always tend to keep MinimWatch running .. a yellow icon spings to mind a lot more but 'Started' bundled with a still active 'rescan' button.
Perhaps you could think about adding some sort of progress string (perhaps the full path it currently did process) if one does hit the 'refresh' button on NAS:9790.
I won't ask for a continous logging as in watch.log with verbose turned on since that would surely slow down the NAS. But when pressing refresh the page must get refreshed anyway thus some more info would be nice.
Especially if your mentioned 'some time' turns gets measured in hrs not minutes on huge collections.