> Really? fsck can recover from losing 4K bytes surrounding the last 
> metadata block written?

The only metadata that matter are the inodes and (for ffs) the
indirect blocks.  You do really want the latter to be single disk
blocks - many systems actually write them synchonously.

The inode is (probably) only 128 bytes, losing an inode block
will lose the other files.

A journaling filesystem probably already has ways around this...

	David

-- 
David Laight: david@l8s.co.uk