0001 ==================================
0002 Network Block Device (TCP version)
0003 ==================================
0004
0005 1) Overview
0006 -----------
0007
0008 What is it: With this compiled in the kernel (or as a module), Linux
0009 can use a remote server as one of its block devices. So every time
0010 the client computer wants to read, e.g., /dev/nb0, it sends a
0011 request over TCP to the server, which will reply with the data read.
0012 This can be used for stations with low disk space (or even diskless)
0013 to borrow disk space from another computer.
0014 Unlike NFS, it is possible to put any filesystem on it, etc.
0015
0016 For more information, or to download the nbd-client and nbd-server
0017 tools, go to http://nbd.sf.net/.
0018
0019 The nbd kernel module need only be installed on the client
0020 system, as the nbd-server is completely in userspace. In fact,
0021 the nbd-server has been successfully ported to other operating
0022 systems, including Windows.
0023
0024 A) NBD parameters
0025 -----------------
0026
0027 max_part
0028 Number of partitions per device (default: 0).
0029
0030 nbds_max
0031 Number of block devices that should be initialized (default: 16).