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TERADON:
An Advanced Tool for Moving BCS Entries Between Catalogs
TERADON is a z/OS utility
for moving BCS entries from one ICF catalog to another. This
functionality is similar to IBM's REPRO MERGECAT. TERADON can
be run in a batch mode, similar to IDCAMS, but with exponentially
faster runtimes and many more options. The TERADON REPRO
MERGECAT command can also be run with the WHILEOPEN keyword.
This provides the capability of moving catalog entries for files
that are currently OPEN.
Without TERADON, the user is typically forced to schedule standalone
system time to perform the REPRO MERGECAT, as allocated files cannot
be moved using the standard IDCAMS function.
With TERADON, online systems can remain active and their files can
remain open. Requests for each OPEN file that has had its
catalog records moved will automatically be redirected to the new
target catalog by TERADON.
TERADON has two major functions, MIRROR and REPRO. TERADON MIRROR is
used to report on information from the TERADON address space and
mirroring routines. This will include a list of all files which
remain OPEN since the REPRO MERGECAT WHILEOPEN was processed. Once a
file has been CLOSED, TERADON automatically removes the file from
its control.
When using the WHILEOPEN capabilities, TERADON will create an
address space (ORXMAIN) and dynamically enable its catalog
management mirroring routines. The ORXMAIN address space monitors
files requiring mirroring. This ensures that catalog management
requests are correctly handled and directed to the target ICF
catalog.
When using the WHILEOPEN feature, TERADON will require 8K of ECSA
and 8 bytes of CSA. All other storage areas are contained within the
TERADON address space, ORXMAIN and its associated common data space,
ORXDATA.
TERADON REPRO is used to select and move entries from one BCS to
another. It is comprised of two integrated components. The first is
the batch "REPRO MERGECAT". This utilizes powerful selection
capabilities to perform a basic REPRO MERGECAT when files are not
OPEN. The second component is "REPRO MERGECAT WHILEOPEN". The
"WHILEOPEN" option enables the catalog entries to be moved while
selected datasets remain OPEN.
Each component of TERADON REPRO contains a robust SIMULATE
feature. The TERADON SIMULATE feature:
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Produces a list of selected
files for the REPRO MERGECAT activity. |
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Produces a list of files that
are currently OPEN for WHILEOPEN processing. |
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Reads the TARGET catalog for
conflict resolution purposes, identifying potential
duplicate entries. |
Quite simply, TERADON provides an
easy-to-use solution that assists the IBM Mainframe Data Centre
achieve near 24*7 data availability; either by dramatically
reducing the elapsed time associated with a standalone REPRO
MERGECAT operation, or more importantly, allowing a REPRO
MERGECAT operation to be processed during typical day-to-day
operations.
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Another advanced ICF catalog management function for 24*7 data
availability. |
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