> From: [email protected] [mailto:[email protected]] > On Behalf Of Skylar Thompson > > Second, we depend LTO's data validation while data are being written to > tape.
I don't want to say "all devices," but I'll say all hard drives include data integrity, in the form of FEC, built into the hardware. If you get data out of the disk, it means it already passed the hardware checksum. The same is true for TCP. Yet things like zfs layer additional integrity checking on top of that ... And in a lot of circumstances, it's wise to validate files transferred over a network too. I certainly know, I can't enumerate the number of times I've discovered corrupt data by checking the md5, or scrubbing the filesystem. So the hardware and TCP checksumming is extremely useful, but by at least my measure, not good enough. _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
