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| author | mjacob <mjacob@FreeBSD.org> | 2000-07-10 15:37:03 +0000 |
|---|---|---|
| committer | mjacob <mjacob@FreeBSD.org> | 2000-07-10 15:37:03 +0000 |
| commit | f5a6b75d841c7014bc80db9298b9e5bca7ad3f77 (patch) | |
| tree | 437aee7e79a851cc88cc34e690209af847acf557 /sys/conf/NOTES | |
| parent | 8e224e7a6858d3d2c6632a545c08a70c1f913d6a (diff) | |
| download | FreeBSD-src-f5a6b75d841c7014bc80db9298b9e5bca7ad3f77.zip FreeBSD-src-f5a6b75d841c7014bc80db9298b9e5bca7ad3f77.tar.gz | |
Beef up a bit descriptions of SCSI devices and what the drive.
Diffstat (limited to 'sys/conf/NOTES')
| -rw-r--r-- | sys/conf/NOTES | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES index ca73dc1..1c46e4c 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -795,19 +795,46 @@ hint.sa.1.target="6" # All SCSI devices allocate as many units as are required. +# The ch driver drives SCSI Media Changer ("jukebox") devices. +# +# The da driver drives SCSI Direct Access ("disk") and Optical Media +# ("WORM") devices. +# +# The sa driver drives SCSI Sequential Access ("tape") devices. +# +# The cd driver drives SCSI Read Only Direct Access ("cd") devices. +# +# The ses driver drives SCSI Envinronment Services ("ses") and +# SAF-TE ("SCSI Accessable Fault-Tolerant Enclosure") devices. +# +# The pt driver drives SCSI Processor devices. +# +# +# Target Mode support is provided here but also requires that a SIM +# (SCSI Host Adapter Driver) provide support as well. +# +# The targ driver provides target mode support as a Processor type device. +# It exists to give the minimal context necessary to respond to Inquiry +# commands. There is a sample user application that shows how the rest +# of the command support might be done in /usr/share/examples/scsi_target. +# +# The targbh driver provides target mode support and exists to respond +# to incoming commands that do not otherwise have a logical unit assigned +# to them. +# # The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI -# configuration and doesn't have to be explicitly configured. +# configuration as the "pass" driver. device scbus #base SCSI code device ch #SCSI media changers device da #SCSI direct access devices (aka disks) device sa #SCSI tapes device cd #SCSI CD-ROMs -device pass #CAM passthrough driver device ses #SCSI Environmental Services (and SAF-TE) +device pt #SCSI processor device targ #SCSI Target Mode Code device targbh #SCSI Target Mode Blackhole Device -define pt #SCSI Processor Target Device +device pass #CAM passthrough driver # CAM OPTIONS: # debugging options: |
