

1. OVERVIEW › 1.1 Primary Areas of Application
1.1 Primary Areas of Application
The CA MICS Space Analyzer provides data integration and
reporting capabilities that aid in the management of complex
MVS systems in the following areas:
o Space Management
The CA MICS Space Analyzer files provide the basis for a
wide variety of analysis based on size of data set and
days on non-usage. For example, some customers examine
the date of last use for a data set generating HMIGRATE
commands to move the data to less expensive storage based
on size of data set. Smaller data sets are allowed to
remain on primary storage longer than large data sets.
This algorithm has been found to be more useful than the
use of DFHSM daily space management in a non-SMS
environment.
There are numerous other examples of analysis based on
space characteristics. Identifying data sets in an
excessive number of extents or VSAM data sets with an
excessive number of control area splits uncovers
opportunities for application-level tuning that improves
both performance and (space) availability.
o Accounting and Chargeback
The CA MICS Space Analyzer files contain data in a form
that is usable for basic billing of DASD resource
occupancy. A standard interface to CA MICS Accounting and
Chargeback permits accounting from DASD measures of space
and the special services implied by SMS class names.
o Capacity Planning
The CA MICS Space Analyzer maintains a database of
historical DASD occupancy data. This facilitates growth
and trend projections at the system and organizational
unit (division or department) levels.
o Performance Management
Many of the data elements captured in this information
area contain values that are important to performance
management. For example, identifying volumes that do not
have an indexed VTOC can offer the potential to improve
performance for the entire DASD configuration. Likewise,
knowing which VSAM clusters have an excessive number of
index levels provides the opportunity to boost performance
of the applications that use that data.
o Operational Issues
DASD volumes tend to become fragmented with many small
extents of free space over time. To make these volumes
more usable, periodic jobs compacting this free space are
required. Using information organized by the CA MICS
Space Analyzer, you can generate control statements for
this data management process only when needed and save the
processing resources required for unnecessary compaction
operations.
o Migration to DFSMS
Preparing for Systems Managed Storage (SMS) as implemented
by DFSMS requires careful planning that the CA MICS Space
Analyzer facilitates. One of the many tasks related to
migrating to DFSMS requires you to identify data sets that
are uncataloged or allocated with various attributes that
make them unmanageable by DFSMS. You can identify these
problem data sets by examining a file maintained by the CA
MICS Space Analyzer and generate a control statement to
either DELETE or catalog the data set.
o Management Reporting and Policy Creation
You can extract, group, and summarize information directly
from the database to create useful management reporting
measures. Management can establish service objectives for
different types of data sets, such as storage group or
volume pool, storage class, management class, or data
owner. Reports or one-page management summaries that
compare actual occupancy against the service level
objectives create the potential for creating policies that
are rational and achievable. In addition to the standard
management reports that are distributed with the system,
you can easily create custom reports by using online
facilities. Additional tools allow resummarization when
the summarized data in the database does not directly
address reporting needs.
Integration of Data from Catalogs, VTOCs, DFHSM and SMS
Another feature of the CA MICS Space Analyzer is its
comprehensive handling of data gathered from diverse and
complex structures such as all forms of MVS catalogs, VTOCs,
and the SMS address space. The CA MICS Space Collector
gathers this data in a high-speed scan of these structures.
Then, the CA MICS Space Analyzer:
o Consolidates data from multiple sources providing a
common access method for reporting on data set and volume
occupancy. For example, a record in the VCA database
which represents a data set is formed from data that
originates from the VTOC, the VVDS and the SMS address
space. All these important attributes are organized into
an easily-handled SAS observation in accordance with the
CA MICS data model.
o Interprets encoded values in the input data so that
information is immediately usable in a logical form,
without further conversion and/or translation.
o Supports the classification of cost center information
based on organizational structure by allowing each
organization to set its own account codes to link
individual data sets with the responsible cost center or
organizational unit. You can use this structure to report
other measured work such as batch, TSO, and printing
activity with DASD and DFHSM resources by user area
(engineering, payroll, manufacturing, etc.), or any other
applicable section or category.
o Eliminates duplicate data during daily processing.
General Product Flexibility
The CA MICS Space Analyzer also offers a number of
flexibility features, such as the following:
o A wide range of standard exits to allow you to tailor the
product to your specific needs.
o A data dictionary that describes the information found in
the three information areas controlled by the CA MICS
Space Analyzer (VCA, HSM, and HSB).
o Usage guidelines for applying DASD and DFHSM management
information.
CA MICS database files are summarized in the same manner
across all products. Therefore, you can combine batch, TSO
and operational information with information about DASD
occupancy and DFHSM inventories. Combining data from
multiple data sources allows you to compare and correlate
batch and system information with other application-specific
data such as that from RMF, CICS, IMS, DB2, etc.
The CA MICS Space Analyzer contributes to the overall
benefits provided by the CA MICS IS Management Support System
in the following areas:
o Improving day-to-day IS management by allowing you to
track DASD usage and plan corrective actions to ensure
smooth operations
o Reducing risk to the enterprise by providing audit and
control capabilities for all DASD use
o Controls or reduces costs by:
- allowing you to equitably charge users for the
amount of DASD they use
- identifying, in conjunction with other operating
system management products, unused resources to
substantially reduce the products' associated costs
- eliminating the costs associated with maintaining
other, separate DASD reporting products
o Improves return on the IS investment by:
- providing a basis for operating system and hardware
resource usage chargeback either through CA MICS
Accounting and Chargeback or a basic user-developed
costing process
- improving your ability to understand, report on,
control, and, if necessary, reduce DASD expenses
o Increases productivity by:
- allowing less experienced users to interpret report
results and use database information
- reducing the task of coordinating information from
multiple sources so you can report or analyze
information at the enterprise rather than the
system level
- reducing the large quantities of DASD usage data to
a manageable and easily used format
o Improves planning by:
- allowing you to perform trend analysis through the
use of summarized historical data
- collecting DFSMS data that can be used to plan or
monitor DFSMS implementation
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