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ISER(4)			 BSD Kernel Interfaces Manual		       ISER(4)

NAME
     iser -- iSCSI Extensions for RDMA (iSER) driver

SYNOPSIS
     To	compile	this driver into the kernel, place the following line in the
     kernel configuration file:

	   device iser

     Alternatively, to load the	driver as a module at boot time, place the
     following line in loader.conf(5):

	   iser_load="YES"

DESCRIPTION
     The iser (iSCSI Extensions	for RDMA) initiator driver extends the iSCSI
     protocol to RDMA.	It permits data	to be transferred directly into	and
     out of SCSI buffers without intermediate data copies.  iSER uses the RDMA
     protocol suite to supply higher bandwidth for block storage transfers
     (zero copy	behavior).  To that fact, it eliminates	the TCP/IP processing
     overhead while preserving the compatibility with iSCSI protocol.  The
     initiator is the iSCSI/iSER client, which connects	to an iSCSI/iSER tar-
     get, providing local access to a remote block device.  The	userland com-
     ponent is provided	by iscsid(8) and both the kernel and userland are con-
     figured using iscsictl(8).

SYSCTL VARIABLES
     The following variables are available as both sysctl(8) variables and
     loader(8) tunables:

     kern.iser.debug
	     Verbosity level for log messages from the iser driver.  Set to 0
	     to	disable	logging	or 1 to	warn about potential problems.	Larger
	     values enable info	and debugging output.  Defaults	to 0.

SEE ALSO
     iscsi(4), iscsi.conf(5), iscsictl(8), iscsid(8)

HISTORY
     The iser subsystem	first appeared in FreeBSD 11.0.

AUTHORS
     The iser subsystem	was developed by Max Gurtovoy <maxg@mellanox.com> and
     Sagi Grimberg <sagig@mellanox.com>	under sponsorship from Mellanox	Tech-
     nologies.

BSD				 June 6, 2016				   BSD

NAME | SYNOPSIS | DESCRIPTION | SYSCTL VARIABLES | SEE ALSO | HISTORY | AUTHORS

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