Package sdparm

List or change SCSI/SATA disk parameters

SCSI disk parameters are held in mode pages. This utility lists or
changes those parameters. Other SCSI devices (or devices that use the
SCSI command set e.g. some SATA devices) such as CD/DVD and tape
drives may also find parts of sdparm useful.

Fetches Vital Product Data pages. Can send commands to start or stop
the media and load or unload removable media.

Warning: It is possible (but unlikely) to change SCSI disk settings
such that the disk stops operating or is slowed down. Use with care.

System Administration
Command Description
sas_disk_blink blink the LED on a SAS disk
scsi_ch_swp change SCSI Software WRITE Protect and block device settings
sdparm access SCSI modes pages; read VPD pages; send simple SCSI commands.