Hi All:

Actually, I am running into the same case (need to remove certain files from a 
snapshot), let me give you a good example of why we need to do it.

In our case, we use zfs snapshots to store online backups of home file systems 
(that is, readily accessable to employees if they need to recover a file or 
directory).  Let say employee (we will call him Mr. Scumbags), has downloaded 
and saved a file that is objectionable (say it details the losing streak of the 
Chicago Cubs, or some other such very nasty information :)).  After appropriate 
discipline (40 lashses, or whaterver else your company deems appropriate), you 
(as the honorable system administrator) delete the file from his home 
directory.  HOWEVER, we also need to delete the files from the backups (the zfs 
snapshots). How can we do it?

thanks,

Paul
 
 
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