director 2/64 service manual

director 2/64 service manual Glossary–11
Glossary
information message
Software message that indicates to a user that a function is performing normally or has
completed normally. See also error message and warning message.
initial machine load (IML)
Hardware reset for all installed CTP2 cards on the director. It does not affect other hardware. It
is initiated by pushing the white button on a director’s CTP2 card.
initial program load (IPL)
Process of initializing the device and causing the operating system to start. Initiated through a
menu in the Product Manager application, this option performs a hardware reset on the active
CTP2 only.
input/output configuration
The collection of channel paths, control units, and I/O devices that attaches to the S/390 or
2/Series Processor.
input/output configuration program
A program that defines all available I/O devices and channel paths to an IBM S/390 or
2/Series Processor system. Replaced by the Hardware Configuration Definition Program
starting with MVS/ESA Version 4.0.
interface
Hardware, software, or both, linking systems, programs, or devices.
internet protocol (IP) address
Unique string of numbers (in the format xxx.xxx.xxx.xxx) that identifies a device on a
network.
interoperability
Ability to communicate, execute programs, or transfer data between various functional units
over a network.
interswitch link (ISL)
Physical E_Port connection between two directors in a fabric.
I/O configuration
See input/output configuration.
IOCDS
A data set that contains an I/O configuration definition built by the IOCP.