blkmapd man page on Archlinux

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blkmapd(8)							    blkmapd(8)

       blkmapd - pNFS block layout mapping daemon

       blkmapd [-d] [-f]

       The blkmapd daemon performs device discovery and mapping for the paral‐
       lel 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 con‐
       tent, 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 <>
       Jim Rees <>

				11 August 2011			    blkmapd(8)

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