Pk*0_Soft_Term - HP AlphaServer TS15 Owner's Manual

5.20.10 pk*0_soft_term

The pk*0_soft_term environment variable enables or disables SCSI terminators for
optional SCSI controllers. This environment variable applies to systems that use the
QLogic SCSI controller, though it does not affect the onboard controller.
The QLogic ISP1020 SCSI controller implements the 16-bit wide SCSI bus. The QLogic
module has two terminators, one for the low eight bits and one for the high eight bits.
To list the controllers on your system, enter the show device command. SCSI controllers
begin with the letters "pk" (for example, pka0). The third letter is the adapter ID for the
controller. Replace the asterisk with the adapter ID letter when entering the set
pk*0_soft_term command.
The value of pk*0_soft_term takes effect only after you reset the system by pressing the
Reset button (if configured) or by issuing the init command (Jumper J22 pins 13-14 must be
inserted for the halt/reset button to operate as a reset button.)
Syntax
set pk*0_soft_term value
The options for value are:
off Disables termination of all 16 bits.
Enables low eight bits and disables high eight bits.
low
Enables high eight bits and disables low eight bits.
high
on (default) Enables all 16 bits.
diff Places the bus in differential mode.
5-52 hp AlphaServer TS15 Owner's Guide