Thomas Glanzmann
Sun, 24 May 2009 00:27:37 -0700
Hello Heinz, > Hi, during the last half year I thought a little bit about doing dedup > for my backup program: not only with fixed blocks (which is > implemented), but with moving blocks (with all offsets in a file: 1 > byte, 2 byte, ...). That means, I have to have *lots* of comparisions > (size of file - blocksize). Even it's not the same, it must be very > fast and that's the same problem like the one discussed here.
because I just stumbled across that, I wanted to let you know about an interesting approach that NetAPP is using for its Virtual Tape Library: http://www.netapp.com/us/communities/tech-ontap/vtl-dedupe.html Thomas -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html