> > If i put the database in hotbackup mode,then i will
> have to ensure
> > that the filesystem is consistent as well.So, you
> are saying that
> > taking a ZFS snapshot is the only method to
> guarantee consistency in
> > the filesystem since it flushes all the buffers to
> the filesystem , so
> > its consistent. 
> 
> The ZFS filesystem is always consistent on disk.  By
> taking a snapshot,
> you simply make a consistent copy of the filesystem
> available.
> 
> Flushing buffers would be a way of making sure all
> the writes have made
> it to storage.  That's a different statement than
> consistency.
> 
> > Just curious,is there any manual way of telling ZFS
> to flush the
> > buffers after queiscing the db other than taking a
> ZFS snapshot?.
> 
> The usual methods of doing this on a filesystem are
> to run sync, or call
> fsync(), but that's not anything specific to ZFS.  
> 
> If you're not taking a snapshot, why would you want
> ZFS to flush the
> buffers?  
> 

Maybe just a way to confirm some really important data/change made it to the 
storage?

Ivan.

> -- 
> Darren Dunham
> 
> [EMAIL PROTECTED]
> Senior Technical Consultant         TAOS
>            http://www.taos.com/
> Pepper?                           San Francisco, CA
>  bay area
> < This line left intentionally blank to
>  confuse you. >
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