NAME

     cfiscsi — CAM Target Layer iSCSI target frontend

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel
     configuration file:

           device cfiscsi
           device ctl
           device iscsi

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

           cfiscsi_load="YES"

DESCRIPTION

     The cfiscsi subsystem provides the kernel component of an iSCSI target.  The target is the
     iSCSI server, providing LUNs backed by local files and volumes to remote initiators.  The
     userspace component is provided by ctld(8).  cfiscsi is implemented as a ctl(4) frontend and
     uses infrastructure provided by iscsi(4).

SYSCTL VARIABLES

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

     kern.cam.ctl.iscsi.debug
             Verbosity level for log messages from the kernel part of iSCSI target.  Set to 0 to
             disable logging or 1 to warn about potential problems.  Larger values enable
             debugging output.  Defaults to 1.

     kern.cam.ctl.iscsi.maxtags
             The number of outstanding commands to advertise to each iSCSI initiator.  Current
             implementation is not very accurate, so do not set this below 2.  Defaults to 256.

     kern.cam.ctl.iscsi.ping_timeout
             The number of seconds to wait for the iSCSI initiator to respond to a NOP-In PDU.
             In the event that there is no response within that time the session gets forcibly
             terminated.  Set to 0 to disable sending NOP-In PDUs.  Defaults to 5.

SEE ALSO

     ctl(4), iscsi(4), ctl.conf(5), ctld(8)

HISTORY

     The cfiscsi subsystem first appeared in FreeBSD 10.0 as part of the ctl(4) driver.  It was
     split off of ctl(4) in FreeBSD 12.0.

AUTHORS

     The cfiscsi subsystem was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> under
     sponsorship from the FreeBSD Foundation.  This manual page was written by Enji Cooper
     <ngie@FreeBSD.org>.