SCSI and Linux
The Small Computer System Interface (SCSI) allows one to chain high speed devices to your computer.
Related YoLinux Tutorials:
SCSI devices under Linux are often named to suite the device. For example the first SCSI tape drive is /dev/st0. The first SCSI CD-ROM is /dev/scd0. These devices do not have partitions and do not use letter identifiers. SCSI disks are labled /dev/sda, /dev/sdb, /dev/sdc etc... to represent the first, second, third,... SCSI hard drives but they do not reflect the SCSI ID. SCSI hard drive partitions are represented by an additional number. i.e. First drive first partition, /dev/sda1, second partition, /dev/sda2,... The drive names are incremented across multiple SCSI HBA's (cards) as if it is all one device. When using scanners, one uses the "raw" device name.
The SCSI device number 7 is usually reserved for the SCSI card itself.
To list scsi devices on Linux system: cat /proc/scsi/scsi
SCSI will use a controller ID, channel ID, unit ID and LUN (Logical unit number).
List partition table: fdisk -l
SCSI Interfaces and standards:
Copyright © 2000 by Greg Ippolito