On Jun 13, 2008 01:33 +0000, iaw4 wrote: > there is already checksumming of metadata. There is only checksumming of the metadata in the journal and for the group descriptor. There is not yet checksumming of the rest of metadata (bitmaps, inode table, superblock, etc). > having a file-system option of > checksumming every file's contents upon closing the write would be very > convenient, too. It would only take an extra few bytes in the file > descriptor, wouldn't it? It would be nice insurance against hardware > corruption. zfs has it, too, I believe. just a suggestions from someone > who is just an end user... Sure, I don't think anyone objects to it, but it is a lot of work to implement and nobody has yet made the effort to do so. If someone is looking to work on this, we've given a lot of thought to the design of how to implement this. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html