Machine Level Table
The machine level table (MLT) contains information such as the microcode level of
the machine, the type and version of control program (NCP or PEP), and the load
module being used.
This table provides information required by the maintenance personnel. The
machine level table can be displayed from the operator console. Using SSP, this
file may be transferred and printed at the host whenever a microcode dump is
requested.
IPL Port
An IPL port is any communication link (LSS or HSS) used to transfer the control
program from the host to the controller. The user uses the link IPL port (LKP)
function to define the communication link addresses for each IPL port at installation
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time, or to update them. This function is not supported by ESS.
The parameters of each IPL port that are used to initialize the controller are
maintained on the MOSS disk.
Machine Status Area
The machine status area (MSA) is an area of the console screen. It displays
permanent information on the 3745 status.
This area is divided into fields respectively dedicated to various status information.
It provides the operator with the MOSS, scanner, token-ring adapter, and TIC
status. It displays information on the progress of controller IPL and scanner IML
functions.
Password Management
Access to the system is controlled by passwords defined by the user.
The password management (PSW) function enables the user to update the
passwords.
The password is required when logging on from a local, remote, or alternate
console. A temporary or permanent maintenance password enables IBM service
personnel to access the system through the RSF link.
Channel Interface Display
The channel adapter enable/disable function is always accessible from the attached
console.
The related menu is displayed immediately after the console power-on and MOSS
IML. For this function only, no password is necessary. The user can also display
additional information relating to the host(s) to which a channel interface is
attached.
Port Swapping
The port swap function (PSF) is used to switch one LIC or TIC port to another
without control program regeneration.
If a link to a port is disconnected (line, LIC, or scanner failure), this failing link can
be logically and physically switched from its original port to a spare one. Through
Chapter 4. Controller Description
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