Hi, nbd-client -h tells me: Allowed values for blocksize are 512,1024,2048,4096 Now conventional jumbo frames (which become popular on Gb networks) are 9000 bytes. So 1 8192 NBD block would fit in it nicely. Folkert van Heusden -- ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com