Damon Atkins <damon_atk...@yahoo.com.au> writes: > One problem could be block sizes, if a file is re-written and is the > same size it may have different ZFS record sizes within, if it was > written over a long period of time (txg's)(ignoring compression), and > therefore you could not use ZFS checksum to compare two files.
the record size used for a file is chosen when that file is created. it can't change. when the default record size for the dataset changes, only new files will be affected. ZFS *must* write a complete record even if you change just one byte (unless it's the tail record of course), since there isn't any better granularity for the block pointers. -- Kjetil T. Homme Redpill Linpro AS - Changing the game _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
