Looking At SCSI "things" - /sys/class/scsi/

• Kernel 2.6 added the sys file-system - which is an ordered way of exposing the entire peripherals hierarchy seen by the OS.
• /sys/class/scsi_device/ contains info about all SCSI devices:

  / # ls /sys/class/scsi_device/
  6:0:0:0/  6:0:0:5/  6:0:1:0/  6:0:1:5/  7:0:0:0/  7:0:0:5/  7:0:1:0/  7:0:1:5/
  6:0:0:1/  6:0:0:6/  6:0:1:1/  6:0:1:6/  7:0:0:1/  7:0:0:6/  7:0:1:1/  7:0:1:6/
  6:0:0:2/  6:0:0:7/  6:0:1:2/  6:0:1:7/  7:0:0:2/  7:0:0:7/  7:0:1:2/  7:0:1:7/
  6:0:0:3/  6:0:0:8/  6:0:1:3/  6:0:1:8/  7:0:0:3/  7:0:0:8/  7:0:1:3/  7:0:1:8/
  6:0:0:4/  6:0:0:9/  6:0:1:4/  6:0:1:9/  7:0:0:4/  7:0:0:9/  7:0:1:4/  7:0:1:9/
  

• Each directory contains a link named 'device' to a directory with data about one LUN.
• Some files in this directory:
  • vendor - the Vendor of the device.
  • model - the model of the device.
  • type - the type of the device (0 - disk).
• Note: the /sys file-system contains a large cross-reference, so each device can be found in several different paths - explore it at will...

Originally written by guy keren