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| author | Dave Airlie <airlied@redhat.com> | 2015-04-20 01:32:26 (GMT) |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2015-04-20 03:05:20 (GMT) |
| commit | 2c33ce009ca2389dbf0535d0672214d09738e35e (patch) | |
| tree | 6186a6458c3c160385d794a23eaf07c786a9e61b /Documentation/blockdev/nbd.txt | |
| parent | cec32a47010647e8b0603726ebb75b990a4057a4 (diff) | |
| parent | 09d51602cf84a1264946711dd4ea0dddbac599a1 (diff) | |
| download | linux-2c33ce009ca2389dbf0535d0672214d09738e35e.tar.xz | |
Merge Linus master into drm-next
The merge is clean, but the arm build fails afterwards,
due to API changes in the regulator tree.
I've included the patch into the merge to fix the build.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'Documentation/blockdev/nbd.txt')
| -rw-r--r-- | Documentation/blockdev/nbd.txt | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/Documentation/blockdev/nbd.txt b/Documentation/blockdev/nbd.txt index 271e607..db242ea 100644 --- a/Documentation/blockdev/nbd.txt +++ b/Documentation/blockdev/nbd.txt @@ -1,17 +1,31 @@ - Network Block Device (TCP version) - - What is it: With this compiled in the kernel (or as a module), Linux - can use a remote server as one of its block devices. So every time - the client computer wants to read, e.g., /dev/nb0, it sends a - request over TCP to the server, which will reply with the data read. - This can be used for stations with low disk space (or even diskless) - to borrow disk space from another computer. - Unlike NFS, it is possible to put any filesystem on it, etc. - - For more information, or to download the nbd-client and nbd-server - tools, go to http://nbd.sf.net/. - - The nbd kernel module need only be installed on the client - system, as the nbd-server is completely in userspace. In fact, - the nbd-server has been successfully ported to other operating - systems, including Windows. +Network Block Device (TCP version) +================================== + +1) Overview +----------- + +What is it: With this compiled in the kernel (or as a module), Linux +can use a remote server as one of its block devices. So every time +the client computer wants to read, e.g., /dev/nb0, it sends a +request over TCP to the server, which will reply with the data read. +This can be used for stations with low disk space (or even diskless) +to borrow disk space from another computer. +Unlike NFS, it is possible to put any filesystem on it, etc. + +For more information, or to download the nbd-client and nbd-server +tools, go to http://nbd.sf.net/. + +The nbd kernel module need only be installed on the client +system, as the nbd-server is completely in userspace. In fact, +the nbd-server has been successfully ported to other operating +systems, including Windows. + +A) NBD parameters +----------------- + +max_part + Number of partitions per device (default: 0). + +nbds_max + Number of block devices that should be initialized (default: 16). + |