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CTL(4)                 FreeBSD Kernel Interfaces Manual                 CTL(4)

NAME
     ctl - CAM Target Layer

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

           device ctl

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

           ctl_load="YES"

DESCRIPTION
     The ctl subsystem provides SCSI disk and processor emulation.  It
     supports features such as:

     +o   Disk and processor device emulation
     +o   Tagged queueing
     +o   SCSI task attribute support (ordered, head of queue, simple tags)
     +o   SCSI implicit command ordering support.
     +o   Full task management support (abort, LUN reset, target reset, etc.)
     +o   Support for multiple ports
     +o   Support for multiple simultaneous initiators
     +o   Support for multiple simultaneous backing stores
     +o   Persistent reservation support
     +o   Mode sense/select support
     +o   Error injection support
     +o   All I/O handled in-kernel, no userland context switch overhead

     It also serves as a kernel component of the native iSCSI target.

SEE ALSO
     ctladm(8), ctld(8), ctlstat(8)

HISTORY
     The ctl subsystem first appeared in FreeBSD 9.1.

AUTHORS
     The ctl subsystem was written by Kenneth Merry <ken@FreeBSD.org>.

FreeBSD 11.0-PRERELEASE          April 2, 2013         FreeBSD 11.0-PRERELEASE

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

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