Unfortunately, there is no such notification.

The most obvious reason is that such process is monitored anyway. Do not forget 
that this is best practice as one should always monitor the server - it might 
be that NW will just sit and wait for a missing media.

However, if you want to recover a known file/directory/filesystem from the 
command line from the command line, for example a 'routine recovery', you could 
of course script the process and send a mail at the start and in the end (or 
similar).

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