2. PERFORMANCE REPORTING ANALYSIS › 2.4 I/O Configuration Analysis

2.4 I/O Configuration Analysis

The I/O Configuration Analysis routines allow you to analyze
the following aspects of your I/O configuration:

    o  Analysis of shared DASD effects for multiple systems.

    o  Analysis of the components of I/O device service time
       to identify problems in device response time.

    o  Analysis of DASD skew to identify DASD strings that
       are adversely impacted by high activity devices.

    o  Identification of 3350/3380 volumes for back-to-back
       mapping on dual density devices.

    o  Analysis of tape drive allocation patterns to identify
       problems in tape drive availability and model possible
       solutions.

    o  Analysis of FICON channel service times and
       performance metrics to ensure proper channel usage.

The following sections describe the operation of the I/O
Configuration Analysis inquiries and the reports they
produce.

    1 - Functional Description
    2 - Usage Guidelines
    3 - Shared DASD Analysis Inquiry
    4 - DASD I/O Component Analysis Inquiry
    5 - DASD Skew Analysis Inquiry
    6 - DASD Multiple Volume Analysis Inquiry
    7 - Tape Drive Simulation Analysis Inquiry
    8 - FICON Channel Performance Analysis Inquiry