SCSI debugging host simulator

modulename: scsi_debug.ko

configname: CONFIG_SCSI_DEBUG

Linux Kernel Configuration
└─>Device Drivers
└─>SCSI device support
└─>SCSI low-level drivers
└─>SCSI debugging host simulator
In linux kernel since version 2.6.12  
This is a host adapter simulator that can simulate multiple hosts
each with multiple dummy SCSI devices (disks). It defaults to one
host adapter with one dummy SCSI disk. Each dummy disk uses kernel
RAM as storage (i.e. it is a ramdisk). To save space when multiple
dummy disks are simulated, they share the same kernel RAM for
their storage. See <http://sg.danny.cz/sg/sdebug26.html> for more
information. This driver is primarily of use to those testing the
SCSI and block subsystems. If unsure, say N.

source code: