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TWA(4) FreeBSD Kernel Interfaces Manual TWA(4) NAME twa -- 3ware driver for 9000 series PATA/SATA RAID controllers SYNOPSIS device twa DESCRIPTION The twa driver provides support for the following series of PATA/SATA RAID controllers: +o 9500S-4LP +o 9500S-8 +o 9500S-8MI +o 9500S-12 +o 9500S-12MI These controllers are available in 4, 8 or 12-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. 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 encounters. 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 4.10 March 1, 2004 FreeBSD 4.10
NAME | SYNOPSIS | DESCRIPTION | DIAGNOSTICS | AUTHORS
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