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JANUS:
Automated, Fast, Cost-Efficient and Compliant OAM Data Migration
Solution
The JANUS OAM migration
solution is a high function automated tool that expedites OAM object
data migration from one storage media type to another (E.g. 3995
Optical → CAS
Disk Array, 3590 Physical Tape → TS1120
Physical Tape, Etc.).
The requirement for compliant archive storage has increased in
significance over the last decade or so, primarily due to
regulations such as Sarbanes-Oxley, Basel II, et al. For IBM
Mainframe archive data, traditionally the only Write Once Read Many
(WORM) storage device was the 3995, no longer manufactured by IBM,
although there are alternative virtual 3995 compatible solutions
(E.g.
Intercom I-4995 Spirit, I-7995 ContentStore). Physical tape solutions evolved to provide WORM functionality, but
the periodic requirement to migrate archive data from one device to
another is inevitable.
Latterly Content Addressed Storage (CAS) and Archive Compliant disk
arrays such as EMC Centera, HDS Content Archive Platform (CAP) and
NetApp SnapLock have been integrated into IBM Mainframe virtual tape
solutions (E.g. Bus-Tech MDL, Intercom I-6994 Gazelle), allowing archive
data to be stored efficiently, but more importantly, allowing
significantly faster retrieval times from the associated disk array.
However, once again, adoption of these solutions inevitably requires
a migration of legacy archive data, either from 3995 optical or
physical tape (E.g. 3590, 3592, TS1120, 9840, 9940, Etc.) tape
media.
From an application viewpoint, many IBM Mainframe software solutions
integrate OAM functionality to provide a fully-rounded and compliant
archive solution, for example,
IBM DB2 ImagePlus,
IBM Content Manager OnDemand for z/OS,
while OAM itself provides a hierarchy of storage levels for archive
object storage. Initially OAM just provided two layers for disk and
optical storage, but more recently the
OAM storage hierarchy has been
expanded to four levels, including Tape Sub-Level 1 (TSL1) and Tape
Sub-Level 2 (TSL2).
It is estimated that ~50% of IBM Mainframe users will have archive
sizes exceeding 30 TB and that ~50% of IBM Mainframe users will
experience archive growth rates of more than 20%, so seasoned data
storage professionals appreciate the periodic challenges of media
migration, whether for tape or optical devices, while OAM
interaction just complicates these matters.
The JANUS OAM data migration process is as simple as 1-2-3:
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1. |
Mapping Old Collections to New Collections:
This step allows the current configuration to be
automatically inspected and documented, while creating a
target environment for the OAM data migration process. |
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2. |
Collecting the Objects to be Migrated:
This step collects the data object reference data for the
actual migration process, but more importantly provides
sufficient information that allows the user to
Plan, Control and Monitor
the migration process. Thus staged migration minimizes
risk, allowing for migration to be controlled, as per user
requirements. |
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3. |
Migration of Objects to New Media:
Object migration is performed via the standard OAM
interface, namely the OSREQ macro. The migration processes
therefore appears to OAM just as additional concurrent (E.g.
Batch) users, in contrast to OAM utilities such as MOVEVOL
or OSMC, which may generate locking problems or poorly
defined intermediate states. |
There are many benefits associated with deploying the JANUS
solution for OAM migration, for example:
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Automated OAM
migration, converting large archive repositories with
millions of objects consistently, without risk |
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Faster OAM migration due to
JANUS parallelism architecture, minimizing overall elapsed
time, delivering TCO benefits for legacy hardware (E.g.
3995, Physical Tape) and minimizing ROI times for new
hardware (E.g. CAS Disk) |
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Consistent data access for
Business As Usual (BAU) data retrieval requests, as the
JANUS architecture eliminates object locking conflicts that
can be a consequence of other OAM migration techniques |
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Safe OAM
migration, as JANUS deploys a non-destructive Modus
Operandi, leaving the original OAM data intact, while the
user can dictate the OAM migration speed using the JANUS
Plan, Control and Monitor
methodology… |
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Simplify and expedite the OAM migration process! |
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