Monitoring Hardware Components
Guardian User’s Guide—425266-001
19-4
Listing the Devices on Your System
Listing the Devices on Your System
A device is a physical component of a computer system that is used to communicate
with the outside world or to acquire or store data. Examples of devices are printers, disks
(volumes), disk drives, tape drives, controllers, processors, and terminals.
Use the Subsystem Control Facility (SCF) to display the configuration characteristics of
all the devices on your system. See the SCF Reference Manual for G-Series Releases for
complete information about SCF, its commands and options, and device types and
subtypes.
Use the SCF LISTDEV command to obtain device listings for all device types,
subtypes, and other device characteristics. For information about specific devices, such
as disks and tapes, use the SCF INFO and STATUS commands.
To list all the devices on your system, enter this command at your TACL prompt:
> SCF LISTDEV
The format of the LISTDEV display is shown below.
The data shown in the report means:
LDev Name PPID BPID Type RSize Pri Program
nnn $process nn,nnn nn,nnn nn,nn nnnnn nnn \sys.$vol.subvol.file
nnn $process nn,nnn nn,nnn nn,nn nnnnn nnn \sys.$vol.subvol.file
LDev The logical device number
Name The logical device name
PPID The primary CPU number and process identification number (PIN) of the
specified device
BPID The backup CPU number and process identification number (PIN) of the
specified device
Type The device type and subtype
RSize The record size the device is configured for
Pri The priority level of the I/O process
Program The fully qualified name of the program file for the process
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