z/VM: CP Commands and Utilities Reference - z/VM - IBM

LOCATE RDEV
►►
LOCate
Authorization
Purpose
Operands
Usage Notes
Responses
RDEV
rdev
▼
rdev
rdev1-rdev2
Privilege Class: C, E
Use LOCATE RDEV to find the addresses of a real device block and its associated
control blocks.
rdev
rdev1-rdev2
specifies a real device number, a range of real device numbers, or a
combination of real device numbers and ranges of real device numbers. CP
displays the address of the real device block (RDEV) and, if there are any, the
addresses of its associated control blocks.
1. LOCATE rdev is not a valid command for SNA/CCS terminals, which are
connected through a VTAM service machine and have no real device address
known to CP. However, each logged-on or dialed SNA/CCS terminal has a
dynamic RDEV control block. For SNA/CCS terminals, the user finds the RDEV
control block by using the LOCATE VDEV userid vdev command (page 559).
This command returns the address of the VDEV control block, and the VDEV
contains a pointer to the RDEV.
2. There are several LOCATE commands (LOCATE RDEV, LOCATE SYMBOL,
LOCATE VMDBK) that treat the qualifying keyword on locate as optional. The
use of the RDEV keyword on this LOCATE command is recommended to avoid
undesired results.
Response 1:
If you enter a LOCATE RDEV command, you may see something like this:
locate rdev 0500-0504 0a01-0a02 0e0e
Dev RDEV CPVOL VEXBK RSPBK SPFBK
0500 07AFB3C8 * * * *
0501 07AFB5A8 * * * *
0502 07AFB788 * * * *
0503 07AFB968 * * * *
0504 07AFBB48 * * * *
0A01 07AF05A8 07B1CB30 07B6602C * *
0A02 07AF0788 07B1CB68 07B6B02C * *
0E0E 07ADC1E8 * * 07AA30E8 075ECD28
Ready;
LOCATE RDEV
►◄
Chapter 2. CP Commands 543