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VSAM Management

VSAM Performance Suite™

The VSAM Performance Suite features two powerful VSAM tools from CSI International.

Override™ optimizes VSAM performance by using buffers more efficiently

Override significantly increases VSAM performance in every installation.

Although VSAM is very important to most installations, it is rarely used optimally. Override significantly increases the performance of VSAM in every installation.

  • Performance benefits can be so significant that it may be possible in some cases to defer the purchase of new hardware. Perhaps best of all, these savings can be realized almost immediately.
  • Override installs in minutes with no need to change any existing files, programs, or JCL.
  • Override does not alter any VSAM files or make modifications to VSAM itself.
  • The following savings have been achieved in benchmarks of real-life applications:


     

    Physical

    I/O's

    Elapsed

     
     

    Typical sequential access

    33%

    10-50%

     
     

    Typical random access

    25-50%

    40-60%

     
     

    Clustered random access

    99%

    95%

     

  • Override remains transparent to the programs involved.

VSUM™ offers powerful design, monitoring, and tuning capabilities for VSAM catalogs and datasets.

VSUM improves DASD-space utilization and job-run performance.

  • With VSUM, time spent scanning VSAM catalog listings and performing complex space calculations for new and existing data sets is greatly reduced, saving personnel hours of valuable time
  • VSUM can be executed either ONLINE using an ISPF interface or BATCH
  • Provides five major functions, which simplify many of the routine and complex tasks necessary for effective VSAM dataset design and management
    • An extended catalog search/list function to provide intelligent search capabilities based on over 100 individual catalog search parameters
    • A dataset modeling and design feature to provide a simpler and more effective method for designing all types of VSAM datasets—support for SMS controlled files and extended addressing is nowavailable
    • A dataset recommendations feature, which makes tuning and design recommendations for datasets being listed or analyzed
    • A dataset space utilization analysis and backup option to interrogate a complete or user-specified part of a VSAM dataset and produce a variety of valuable statistics
    • Batch dataset analysis reports can be generated from statistics that can optionally be saved by VSUM


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Data Sheet

Presentation

Available Downloads

VSAM Performance Suite