I'm not trying to fix anything in particular, I'm just curious. In case I 
rollback a filesystem and then realize, I wanted a file from the original file 
system (before rollback).

I read the section on clones here:
http://docs.sun.com/app/docs/doc/819-5461/gavvx?a=view

but I'm still not sure what clones are. They sound the same as snapshots. From 
what I read, it seems like it is possible to snapshot a filesystem, clone the 
snapshot and then rollback the file system. At this point the clone will be the 
same size as the data changed during the rollback? So from the clone, files 
that were unique to the filesystem before rollback can be restored?

Thanks.
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