| scsi.4 (6813) | scsi.4 (9571) |
|---|---|
| 1.Dd August 27, 1993 2.Dt SD 4 3.Os FreeBSD 4.Sh NAME 5.Nm scsi 6.Nd scsi system 7.Sh SYNOPSIS 8.Nm controller scbus0 | 1.Dd August 27, 1993 2.Dt SD 4 3.Os FreeBSD 4.Sh NAME 5.Nm scsi 6.Nd scsi system 7.Sh SYNOPSIS 8.Nm controller scbus0 |
| 9.Nm controller scbus1 at ahc0 10.Nm controller scbus3 at ahc1 bus 0 11.Nm controller scbus2 at ahc1 bus 1 |
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| 9.Nm device cd0 10.Nm device ch0 11.Nm disk sd0 12.Nm tape st0 13.Nm device ch1 at scbus0 target 4 unit 0 14.Sh DESCRIPTION 15The 16.Em scsi --- 19 unchanged lines hidden (view full) --- 36.Em counted 37so that they appear as the next available unused unit. 38.Pp 39To configure a driver in the kernel without wiring down the device use a 40config line similar to 41.Em "device ch0" 42to include the changer driver. 43.Pp | 12.Nm device cd0 13.Nm device ch0 14.Nm disk sd0 15.Nm tape st0 16.Nm device ch1 at scbus0 target 4 unit 0 17.Sh DESCRIPTION 18The 19.Em scsi --- 19 unchanged lines hidden (view full) --- 39.Em counted 40so that they appear as the next available unused unit. 41.Pp 42To configure a driver in the kernel without wiring down the device use a 43config line similar to 44.Em "device ch0" 45to include the changer driver. 46.Pp |
| 44To wire down a 45unit use a config line similar to | 47To wire down a unit use a config line similar to |
| 46.Em "device ch1 at scbus0 target 4 unit 0" | 48.Em "device ch1 at scbus0 target 4 unit 0" |
| 47to assign changer 1 as the changer with SCSI ID 4 SCSI logical unit 0 on 48SCSI bus 0. | 49to assign changer 1 as the changer with SCSI ID 4, 50SCSI logical unit 0 on SCSI bus 0. 51Individual scbuses can be wired down to specific controllers with 52a config line similar to 53.Em "controller scbus0 at ahc0" 54which assigns scsi bus 0 to the first unit using the ahc driver. 55For controllers supporting more than one bus, 56the particualar bus can be specified as in 57.Em "controller scbus3 at ahc1 bus 1" 58which assigns scbus 1 to the second bus probled on the ahc1 device. |
| 49.Pp 50When you have a mixture of wired down and counted devices then the 51counting begins with the first non-wired down unit for a particular 52type. That is, if you have a disk wired down as 53.Em "disk sd1" , 54then the first non-wired disk shall come on line as 55.Em sd2 . 56.Sh IOCTLS --- 93 unchanged lines hidden --- | 59.Pp 60When you have a mixture of wired down and counted devices then the 61counting begins with the first non-wired down unit for a particular 62type. That is, if you have a disk wired down as 63.Em "disk sd1" , 64then the first non-wired disk shall come on line as 65.Em sd2 . 66.Sh IOCTLS --- 93 unchanged lines hidden --- |