CTL(4) BSD 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 Support for VMWare VAAI: COMPARE AND WRITE, XCOPY, WRITE SAME, and UNMAP commands
o Support for Microsoft ODX: POPULATE TOKEN/WRITE USING TOKEN, WRITE SAME, and UNMAP commands
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>.
BSD October 23, 2014 BSD
Check Out this Related Man Page
VIRTIO_SCSI(4) BSD Kernel Interfaces Manual VIRTIO_SCSI(4)NAME
virtio_scsi -- VirtIO SCSI driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device virtio_scsi
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
virtio_scsi_load="YES"
DESCRIPTION
The virtio_scsi device driver provides support for VirtIO SCSI devices.
LOADER TUNABLES
Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).
hw.vtscsi.bus_reset_disable
In the initial QEMU release with VirtIO SCSI support, in-flight operations were not aborted when stopping the device, rendering bus
reset ineffective. This tunable disables attempts to issue reset bus commands. The default value is 1.
DEBUGGING
To enable debugging prints from the virtio_scsi driver, set the
hw.vtscsi.X.debug_level
variable, where X is the adapter number, either in loader.conf(5) or via sysctl(8). The following bits have the described effects:
0x01 Enable informational prints.
0x02 Enable prints for driver errors.
0x04 Enable tracing prints.
SEE ALSO virtio(4)HISTORY
The virtio_scsi driver was written by Bryan Venteicher <bryanv@FreeBSD.org>. It first appeared in FreeBSD 10.0.
BSD June 24, 2012 BSD
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Hey everyone.
I am trying to figure out a way to create a file that will be renamed based off of one of multiple files. For example, if I have 3 files (cat.ctl, dog.ctl, and bird.ctl) that gets placed on to an ftp site I want to create a single file called new.cat.ctl, new.dog.ctl, etc for each... (3 Replies)
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I have file named filelist.txt
a.bteq.ctl
b.bteq.ctl
c.bteq.ctl
I want to replace the word bteq to tpt in this file.
I used this sed command
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I have a file like this
abc.tpt.ctl
bdc.tpt.ctl
cdw.tpt.ctl
I have looped every line using the for Loop, now I want to take each line and cut the .tpt.ctl part of it and store it in a variable and use the variable in same loop.
The part I am stuck at is how do I cut the last... (9 Replies)