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FS6200 Server System Implementation Guide - Public Support ...

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<strong>System</strong> Overview<br />

• ePortal Specialty Engine<br />

MCP Environment<br />

The MCP Environment is the core environment provided on the system where the MCP<br />

Operating <strong>System</strong>, MCP system software, and MCP applications run. The ClearPath MCP<br />

release software package is installed in this environment.<br />

The MCP Environment consists of multiple hardware platforms and is provided by a<br />

package of Unisys software called MCP Firmware. MCP Firmware provides the following<br />

services in support of the MCP Environment:<br />

• E-mode Services<br />

• I/O Services<br />

• Network Services<br />

• MCP Console<br />

E-mode Services<br />

I/O Services<br />

E-mode services represents the portion of the Unisys MCP Firmware that provides runtime<br />

code execution support for the MCP Operating <strong>System</strong>, MCP <strong>System</strong> Software, and<br />

MCP applications. These services run on the E-mode engine that is located on the PMM<br />

server.<br />

I/O services represent the portion of the MCP Firmware that supports MCP I/O to the<br />

following types of devices:<br />

• Disk and disk storage systems<br />

• Tape and tape libraries<br />

• Virtual tapes<br />

• Operator Display Terminals (ODTs)<br />

• DVD-RW drives<br />

I/O services are also responsible for the discovery and management of devices, and<br />

performing I/O operations.<br />

The following table lists the components of I/O services.<br />

Component Description<br />

I/O processor (IOP) Performs I/O operations on behalf of the MCP<br />

I/O processor Manager Starts, stops, and restarts the I/O processor<br />

2–4 8222 3694–000

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