tws(4) [freebsd man page]

TWS(4)							   BSD Kernel Interfaces Manual 						    TWS(4)

NAME

     tws -- 3ware 9750 SATA+SAS 6Gb/s RAID controller card driver

SYNOPSIS

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

	   device scbus
	   device tws

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

	   tws_load="YES"

DESCRIPTION

     The tws driver provides support for LSI's 3ware 9750 SATA+SAS 6Gb/s RAID controller cards.

     These controllers feature the LSISAS2108 6Gb/s SAS RAID-on-Chip (ROC) and are available in 4- and 8-port configurations, supports RAID levels
     0, 1, 5, 6, 10, 50 and single disk, with 96 SATA and/or SAS hard drives and SSDs.

     For further hardware information, see http://www.lsi.com/.

HARDWARE

     The tws driver supports the following SATA/SAS RAID controller:

     o	 LSI's 3ware SAS 9750 series

LOADER TUNABLES

     Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

     hw.tws.cam_depth	    The maximum queued CAM SIM requests for one controller.  The default value is 256.

     hw.tws.enable_msi	    This tunable enables MSI support on the controller if set to a non-zero value.  The default value is 0.

     hw.tws.queue_depth     The maximum queued requests for one controller.

     hw.tws.use_32bit_sgls  Limit the driver to use only 32-bit SG elements regardless whether the operating system is running in 64-bit mode.
			    The default value is 0.

FILES

     /dev/da?	array/logical disk interface
     /dev/tws?	management interface

DIAGNOSTICS

     Whenever the driver encounters a command failure, it prints out an error code in the format: "ERROR: (<error source>: <error code>):", fol-
     lowed by a text description of the error.	There are other error messages and warnings that the driver prints out, depending on the kinds of
     errors that it encounters.  If the driver is compiled with TWS_DEBUG defined, it prints out a whole bunch of debug messages.

SEE ALSO

     da(4), scsi(4)

AUTHORS

     The tws driver was written by Manjunath Ranganathaiah for LSI and this manual page was written by Xin LI <delphij@FreeBSD.org> for iXsystems,
     Inc.

BSD
								  October 4, 2011							       BSD

Check Out this Related Man Page

MFI(4)							   BSD Kernel Interfaces Manual 						    MFI(4)

NAME

     mfi -- LSI MegaRAID SAS driver

SYNOPSIS

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

	   device pci
	   device mfi

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

	   mfi_load="YES"

DESCRIPTION

     This driver is for LSI's next generation PCI Express SAS RAID controllers.  Access to RAID arrays (logical disks) from this driver is pro-
     vided via /dev/mfid? device nodes.  A simple management interface is also provided on a per-controller basis via the /dev/mfi? device node.

     The mfi name is derived from the phrase "MegaRAID Firmware Interface", which is substantially different than the old "MegaRAID" interface and
     thus requires a new driver.  Older SCSI and SATA MegaRAID cards are supported by amr(4) and will not work with this driver.

     Two sysctls are provided to tune the mfi driver's behavior when a request is made to remove a mounted volume.  By default the driver will
     disallow any requests to remove a mounted volume.	If the sysctl dev.mfi.%d.delete_busy_volumes is set to 1, then the driver will allow
     mounted volumes to be removed.

HARDWARE

     The mfi driver supports the following hardware:

     o	 LSI MegaRAID SAS 1078
     o	 LSI MegaRAID SAS 8408E
     o	 LSI MegaRAID SAS 8480E
     o	 LSI MegaRAID SAS 9260
     o	 Dell PERC5
     o	 Dell PERC6
     o	 IBM ServeRAID M5015 SAS/SATA
     o	 IBM ServeRAID-MR10i
     o	 Intel RAID Controller SROMBSAS18E

FILES

     /dev/mfid?  array/logical disk interface
     /dev/mfi?	 management interface

DIAGNOSTICS

     mfid%d: Unable to delete busy device  An attempt was made to remove a mounted volume.

SEE ALSO

     amr(4), pci(4), mfiutil(8)

HISTORY

     The mfi driver first appeared in FreeBSD 6.1.

AUTHORS

     The mfi driver and this manual page were written by Scott Long <scottl@FreeBSD.org>.

BUGS

     The driver does not support big-endian architectures at this time.

BSD
								   May 12, 2010 							       BSD

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tws(4) [freebsd man page]

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