GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 7.5.0(Wheezy) |
|
 |
blkmapd(8) |
 |
blkmapd − pNFS block layout mapping daemon
blkmapd [-d] [-f]
The blkmapd daemon performs device discovery and mapping for the parallel NFS (pNFS) block layout client [RFC5663].
The pNFS block layout protocol builds a complex storage hierarchy from a set of simple volumes. These simple volumes are addressed by content, using a signature on the volume to uniquely name each one. The daemon locates a volume by examining each block device in the system for the given signature.
The topology typically consists of a hierarchy of volumes built by striping, slicing, and concatenating the simple volumes. The blkmapd daemon uses the device-mapper driver to construct logical devices that reflect the server topology, and passes these devices to the kernel for use by the pNFS block layout client.
|
-d |
Performs device discovery only then exits. | ||
|
-f |
Runs blkmapd in the foreground and sends output to stderr (as opposed to syslogd) |
nfs(5), dmsetup(8)
RFC 5661 for
the NFS version 4.1 specification.
RFC 5663 for the pNFS block layout specification.
Haiying Tang
<Tang_Haiying@emc.com>
Jim Rees <rees@umich.edu>
|
blkmapd(8) | |