Making Time Machine work with the ReadyNAS

odysseus wrote:
... it creates a journaled HFS+ *case sensitive* file system. What are the implications of using a .sparebundle file with a presumably case-insensitive file system instead of a case-sensitive one for Time Machine? ...

There may be implications. What this depends upon is how the filesystem of your Mac(s) is configured. If you, for example, back up a Mac with a case-sensitive filesystem to a TimeMachine volume that is case-insensitive, then this can result in situations where files with different names (file vs fiLe) overwrite each other. So, from a TimeMachine perspective it is always safer to use case-sensitive filesystems.

There have been other threads discussing this issue. Do some searching. :) In my case, I always use case-sensitive filesystems. It just avoids any confusion or sloppy behavior.