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TWS(4) 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: • 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 con- troller. The default value is 256. hw.tws.enable_msi This tunable enables MSI support on the con- troller 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 run- ning 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 er- ror code in the format: "ERROR: (<error source>: <error code>):", fol- lowed by a text description of the error. There are other error mes- sages 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. FreeBSD 14.3 October 4, 2011 TWS(4)
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | LOADER TUNABLES | FILES | DIAGNOSTICS | SEE ALSO | AUTHORS
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