On Sun, 2006-07-16 at 15:21, Darren J Moffat wrote:
> Jeff Victor wrote:
> > Why?  Is the 'data is encrypted' flag only stored in filesystem 
> > metadata, or is that flag stored in each data block?  
> 
> Like compression and which checksum algorithm it will be stored in
> every dmu object.

I thought the compression alg was stored in the block pointer.  IMHO you
need at least a few bits of key version number in the block pointer to
do graceful key roll-over (you don't need an alg id in the bp since that
can be stored with the key..)

                                                - Bill


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