>> I think the only other >> filesystems that checksum are NetApp's WAFL(?) and Linux's btfrs.
No; check out Wikipedia's filesystem comparison page, below. That being said, ain't many, and most of them are new. http://en.wikipedia.org/wiki/Comparison_of_file_systems#Metadata > In an interesting blast from the past, MS-DOS FAT maintains a > checksum. IIRC, it's 32-bit CRC across the entire file, so it isn't very > robust, but I've seen it successfully detect errors before. So MS-DOS FAT > actually has a feature Linux EXT3 lacks. Whodathunkit? UDNRC [sic]. With all due respect to the encyclopedic knowledge of Ben, I took this one with a grain of salt. And again, Wikipedia to the rescue: long filename FAT had checksums for the *filename*, not the file data. This was to to ensure that the 8.3 filename matched the long filename. http://en.wikipedia.org/wiki/File_Allocation_Table > You can do this on Linux with LVM snapshots. And, indeed, it may actually be implemented via btrfs in the next release of Rawhide: http://lwn.net/SubscriberLink/362500/8331dbd6172b5b85/ -Ken -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ gnhlug-discuss mailing list [email protected] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
