nbd-trplay replays all or parts of a transaction log produced by nbd-server (specifically by the transactionlog configuration directive with the option datalog ).
See nbd-trplay --help for the command line parameters.
The file updates the image provided via -i.
The NBD kernel module and the NBD tools have been written by Pavel Macheck (firstname.lastname@example.org).
The kernel module is now maintained by Paul Clements (Paul.Clements@steeleye.com), while the userland tools are maintained by Wouter Verhelst (email@example.com)
This manual page was written by Manfred Spraul (<firstname.lastname@example.org>) for the Debian GNU/Linux system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, version 2, as published by the Free Software Foundation.