TWA(4) Kernel Interfaces Manual TWA(4) NAME twa -- 3ware 9000/9500/9550/9650 series SATA RAID controllers driver SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: device scbus device twa Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): twa_load="YES" DESCRIPTION The twa driver provides support for AMCC's 3ware 9000/9500/9550/9650 series SATA controllers. These controllers are available in 4, 8, 12 or 16-port configurations, and support the following RAID levels: 0, 1, 10, 5, 50. The device nodes for the controllers are of the form /dev/twaX, where X is the controller num- ber. The driver is implemented as a SCSI SIM under CAM, and, as such, the logical units that it controls are accessible via the device nodes, /dev/daY, where Y is the logical unit number. HARDWARE The twa driver supports the following SATA RAID controllers: * AMCC's 3ware 9500S-4LP * AMCC's 3ware 9500S-8 * AMCC's 3ware 9500S-8MI * AMCC's 3ware 9500S-12 * AMCC's 3ware 9500S-12MI * AMCC's 3ware 9500SX-4LP * AMCC's 3ware 9500SX-8LP * AMCC's 3ware 9500SX-12 * AMCC's 3ware 9500SX-12MI * AMCC's 3ware 9500SX-16ML * AMCC's 3ware 9550SX-4LP * AMCC's 3ware 9550SX-8LP * AMCC's 3ware 9550SX-12 * AMCC's 3ware 9550SX-12MI * AMCC's 3ware 9550SX-16ML * AMCC's 3ware 9650SE-2LP * AMCC's 3ware 9650SE-4LPML * AMCC's 3ware 9650SE-8LPML * AMCC's 3ware 9650SE-12ML * AMCC's 3ware 9650SE-16ML * AMCC's 3ware 9650SE-24M8 DIAGNOSTICS Whenever the driver encounters a command failure, it prints out an error code in the format: "ERROR: (<error source>: <error code>):", followed 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 en- counters. If the driver is compiled with TWA_DEBUG defined, it prints out a whole bunch of debug messages, the quantity of which varies depending on the value assigned to TWA_DEBUG (0 to 10). AUTHORS The twa driver and manpage were written by Vinod Kashyap <vkashyap@FreeBSD.org>. FreeBSD 6.4 May 9, 2007 TWA(4)
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | DIAGNOSTICS | AUTHORS
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