IBM Systems Magazine, Mainframe - January/February 2018 - 9

disk drives, (virtual) tape, flash,
etc.), and how the integrity of
media is maintained. This view
focuses on maintaining a replica
of the current state of the storage
that can be quickly brought into
production use, minimizing the
disruption of business activities.
Solutions in this space are storage controller based (i.e., management of the recovery occurs based
on the configuration of the installation's storage controllers and connectivity network). These solutions
copy data as it's written from the
primary storage controllers to alternate storage controllers to ensure
that a reasonably up-to-date copy
is maintained (locally, at metro or
global distances). While a synchronous connection between the
primary and alternate copies is
required to minimize the recovery
time objective (RTO) and eliminate
data loss, asynchronous data
replication over longer distances
is more frequently used to ensure
better isolation between the primary and alternate copies, while
accepting a level of data loss within
the recovery point objective (RPO).

this view, a client can understand more about applications:
sequencing, what's running at a
point in time, data accessed by
each, and what data are in use at
a point in time.
An application may need to
access hundreds or thousands
of data sets that were generated
by other applications or previous
executions of that application,
and generate hundreds or thousands of new data sets, which
are used for other applications
or subsequent executions of the
same application.
The application view is critical
to recoverability in that it enhances
the storage and data views by providing contextual temporality of
data and execution dependencies.
At best, the storage view can maintain the integrity of "the now" (or
"the just before now") and the data
view can provide point-in-time
backups of individual data sets.
An application-centric solution
provides the ability to take
point-in-time backups at key
points in time and restore the
necessary data to restart with a
consistent set of data.

Data View
The data view examines the
ability to recover the logical
constructs that are maintained on
storage (e.g., volumes, data sets
and files). Solutions for recovering
the data view are based on system
software, storage controller firmware and hardware.
By understanding and managing the constructs within the
storage controllers, software
can make point-in-time copies.
However, recovering a complex
system requires more context
to understand how different
backups are related to the dependent applications.

Application View
The application view adds the
context of how the data is used
by the client's applications. From

Devise a Plan
For maximum resiliency, many
organizations rely on storage
replication as the primary approach
for DR and business continuity.
The data are divided into consistency groups (e.g., sets of related
data) typically by application.
The primary and alternate storage
controllers communicate changes
in the data while maintaining the
referential integrity within each
consistency group. The client and
vendor plan the placement of data
into consistency groups and configure the flow of changes to achieve
the necessary RTO and RPO.
The reason data replication
doesn't protect you from a
ransomware attack or application corruption is that a storage
controller replicates all data as

D
Even small
environments
might have

hundreds
of jobs
accessing

thousands
of related data
sets

it's written. It can't distinguish
an "appropriate write" from an
"inappropriate write." This results
in alternate copies that are equally
corrupt as the production data.
To make an application or set of
applications recoverable requires
a backup copy ("snapshot") of all
application data that's consistent
at critical points in time and a
backup copy of the application
as it was running at those critical
points in time.
To protect snapshot copies from
corruption, they should be maintained on media that are isolated
from and secured differently from
primary production storage.
Understanding all of the
applications and data sets that
are critical to your environment is
a daunting task. Even small environments might have hundreds
of jobs accessing thousands of
related data sets. Large environments can have tens or hundreds
of thousands of jobs and millions
of data sets. Aside from the initial
complexity, the environment is
continually changing.
The size and complexity of the
problem demand a solution that
interrogates and understands
the application flow, data usage
and the relationship of that data
to all of the jobs within that
application. The solution should
perform backups at critical times
and maintain an inventory of the
backed up data.
When recovery becomes necessary, the solution should be able
to use that inventory to inform
administrators of the complete sets
of recoverable data, minimizing
the need for complex human analysis of the environment.
Finally, the solution must adapt
the recovery strategy to account
for changes in the environment.
With an application-centric solution, your organization can more
reliably recover your applications,
restoring service more quickly
after data corruption failures.

ibmsystemsmag.com JANUARY/FEBRUARY 2018 // 9


http://www.ibmsystemsmag.com

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - January/February 2018

Table of Contents
Editor's Desk: Encryption Importance
Partner POV: Protect Your Assets: An application view of data is important for a point-in-time recovery
Currents: A Human-Centric Approach: IBM Design Thinking leads to an elevated user experience
Feature: Battle-Tested Tools: USAA integrates applications and data across platforms using RESTful APIs
Cover Story: Enterprise Peace of Mind: IBM z14 pervasive encryption protects all data
Feature: Worldwide Preparation: How IBM Z addresses GDPR compliance with pervasive encryption
Special Report: Rising to the Challenge: Survey shows opportunities for Linux on POWER
TECH Showcase: A Plan in Place: Determine which of the 7 levels of business continuity is right for you
Administrator: Improved Protection: Pervasive encryption features include integrated cryto hardware, key management, encryption of data at rest and data in flight, and Secure Service Container support
StopRun: Enthusiastic Education: Instructor brings the mainframe to eager students
Reference Point - Global Events, Education, Resources for Power Systems
2018 Mainframe Solution Edition
IBM Systems Magazine, Mainframe - January/February 2018 - Intro
IBM Systems Magazine, Mainframe - January/February 2018 - Cover1
IBM Systems Magazine, Mainframe - January/February 2018 - Cover2
IBM Systems Magazine, Mainframe - January/February 2018 - 1
IBM Systems Magazine, Mainframe - January/February 2018 - Table of Contents
IBM Systems Magazine, Mainframe - January/February 2018 - 3
IBM Systems Magazine, Mainframe - January/February 2018 - 4
IBM Systems Magazine, Mainframe - January/February 2018 - 5
IBM Systems Magazine, Mainframe - January/February 2018 - Editor's Desk: Encryption Importance
IBM Systems Magazine, Mainframe - January/February 2018 - 7
IBM Systems Magazine, Mainframe - January/February 2018 - Partner POV: Protect Your Assets: An application view of data is important for a point-in-time recovery
IBM Systems Magazine, Mainframe - January/February 2018 - 9
IBM Systems Magazine, Mainframe - January/February 2018 - Currents: A Human-Centric Approach: IBM Design Thinking leads to an elevated user experience
IBM Systems Magazine, Mainframe - January/February 2018 - 11
IBM Systems Magazine, Mainframe - January/February 2018 - 12
IBM Systems Magazine, Mainframe - January/February 2018 - 13
IBM Systems Magazine, Mainframe - January/February 2018 - Feature: Battle-Tested Tools: USAA integrates applications and data across platforms using RESTful APIs
IBM Systems Magazine, Mainframe - January/February 2018 - 15
IBM Systems Magazine, Mainframe - January/February 2018 - 16
IBM Systems Magazine, Mainframe - January/February 2018 - 17
IBM Systems Magazine, Mainframe - January/February 2018 - Cover Story: Enterprise Peace of Mind: IBM z14 pervasive encryption protects all data
IBM Systems Magazine, Mainframe - January/February 2018 - 19
IBM Systems Magazine, Mainframe - January/February 2018 - 20
IBM Systems Magazine, Mainframe - January/February 2018 - 21
IBM Systems Magazine, Mainframe - January/February 2018 - Feature: Worldwide Preparation: How IBM Z addresses GDPR compliance with pervasive encryption
IBM Systems Magazine, Mainframe - January/February 2018 - 23
IBM Systems Magazine, Mainframe - January/February 2018 - 24
IBM Systems Magazine, Mainframe - January/February 2018 - Special Report: Rising to the Challenge: Survey shows opportunities for Linux on POWER
IBM Systems Magazine, Mainframe - January/February 2018 - 26
IBM Systems Magazine, Mainframe - January/February 2018 - 27
IBM Systems Magazine, Mainframe - January/February 2018 - 28
IBM Systems Magazine, Mainframe - January/February 2018 - 29
IBM Systems Magazine, Mainframe - January/February 2018 - 30
IBM Systems Magazine, Mainframe - January/February 2018 - TECH Showcase: A Plan in Place: Determine which of the 7 levels of business continuity is right for you
IBM Systems Magazine, Mainframe - January/February 2018 - 32
IBM Systems Magazine, Mainframe - January/February 2018 - 33
IBM Systems Magazine, Mainframe - January/February 2018 - 34
IBM Systems Magazine, Mainframe - January/February 2018 - Administrator: Improved Protection: Pervasive encryption features include integrated cryto hardware, key management, encryption of data at rest and data in flight, and Secure Service Container support
IBM Systems Magazine, Mainframe - January/February 2018 - 36
IBM Systems Magazine, Mainframe - January/February 2018 - 37
IBM Systems Magazine, Mainframe - January/February 2018 - 38
IBM Systems Magazine, Mainframe - January/February 2018 - 39
IBM Systems Magazine, Mainframe - January/February 2018 - StopRun: Enthusiastic Education: Instructor brings the mainframe to eager students
IBM Systems Magazine, Mainframe - January/February 2018 - Cover3
IBM Systems Magazine, Mainframe - January/February 2018 - Cover4
IBM Systems Magazine, Mainframe - January/February 2018 - Reference Point - Global Events, Education, Resources for Power Systems
IBM Systems Magazine, Mainframe - January/February 2018 - SE
IBM Systems Magazine, Mainframe - January/February 2018 - 2018 Mainframe Solution Edition
IBM Systems Magazine, Mainframe - January/February 2018 - SECover2
IBM Systems Magazine, Mainframe - January/February 2018 - SE3
IBM Systems Magazine, Mainframe - January/February 2018 - SE4
IBM Systems Magazine, Mainframe - January/February 2018 - SE5
IBM Systems Magazine, Mainframe - January/February 2018 - SE6
IBM Systems Magazine, Mainframe - January/February 2018 - SE7
IBM Systems Magazine, Mainframe - January/February 2018 - SE8
IBM Systems Magazine, Mainframe - January/February 2018 - CT1
IBM Systems Magazine, Mainframe - January/February 2018 - CT2
IBM Systems Magazine, Mainframe - January/February 2018 - SE9
IBM Systems Magazine, Mainframe - January/February 2018 - SE10
IBM Systems Magazine, Mainframe - January/February 2018 - SE11
IBM Systems Magazine, Mainframe - January/February 2018 - SE12
IBM Systems Magazine, Mainframe - January/February 2018 - SE13
IBM Systems Magazine, Mainframe - January/February 2018 - SE14
IBM Systems Magazine, Mainframe - January/February 2018 - SE15
IBM Systems Magazine, Mainframe - January/February 2018 - SE16
IBM Systems Magazine, Mainframe - January/February 2018 - SE17
IBM Systems Magazine, Mainframe - January/February 2018 - SE18
IBM Systems Magazine, Mainframe - January/February 2018 - SE19
IBM Systems Magazine, Mainframe - January/February 2018 - SE20
IBM Systems Magazine, Mainframe - January/February 2018 - SE21
IBM Systems Magazine, Mainframe - January/February 2018 - SE22
IBM Systems Magazine, Mainframe - January/February 2018 - SE23
IBM Systems Magazine, Mainframe - January/February 2018 - SE24
IBM Systems Magazine, Mainframe - January/February 2018 - SE25
IBM Systems Magazine, Mainframe - January/February 2018 - SE26
IBM Systems Magazine, Mainframe - January/February 2018 - SE27
IBM Systems Magazine, Mainframe - January/February 2018 - SE28
IBM Systems Magazine, Mainframe - January/February 2018 - SE29
IBM Systems Magazine, Mainframe - January/February 2018 - SE30
IBM Systems Magazine, Mainframe - January/February 2018 - SE31
IBM Systems Magazine, Mainframe - January/February 2018 - SE32
IBM Systems Magazine, Mainframe - January/February 2018 - SE33
IBM Systems Magazine, Mainframe - January/February 2018 - SE34
IBM Systems Magazine, Mainframe - January/February 2018 - SE35
IBM Systems Magazine, Mainframe - January/February 2018 - SE36
IBM Systems Magazine, Mainframe - January/February 2018 - SE37
IBM Systems Magazine, Mainframe - January/February 2018 - SE38
IBM Systems Magazine, Mainframe - January/February 2018 - SE39
IBM Systems Magazine, Mainframe - January/February 2018 - SE40
IBM Systems Magazine, Mainframe - January/February 2018 - SE41
IBM Systems Magazine, Mainframe - January/February 2018 - SE42
IBM Systems Magazine, Mainframe - January/February 2018 - SE43
IBM Systems Magazine, Mainframe - January/February 2018 - SE44
IBM Systems Magazine, Mainframe - January/February 2018 - SE45
IBM Systems Magazine, Mainframe - January/February 2018 - SE46
IBM Systems Magazine, Mainframe - January/February 2018 - SECover3
IBM Systems Magazine, Mainframe - January/February 2018 - SECover4
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20191112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20190910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20190708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20190506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20190304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/relevantz_20190102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/2019mfse
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20190102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20181112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20180910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20180708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20180506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20180304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20180102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/2018mfse
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20171112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20170910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20170910_v2
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20170708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20170506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20170304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_sesupp
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20170102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_linuxsupp
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20161112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/MainframeSecurity
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20160910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20160708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20160506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20160304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20160102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20151112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150910_se
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150910
http://www.ibmsystemsmagmainframedigital.com/MFSkills
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150506_supp
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20150102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20141112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20140910_v2
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20140910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20140708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_gt_201405
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/BigData
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20140506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20140304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20140102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20131112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20130910_v2
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20130910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20130708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20130506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20130304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20130102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20121112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/buyersguide2013
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20120910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20120708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20120506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20120304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20120102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/ibmsystems_mainframe_2012bg
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20111112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20110910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20110708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20110506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20110304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20110102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20101112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20100910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20100910_bg
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20100708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20100506
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20100304
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20100102
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20091112
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20090910
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20090708
http://www.ibmsystemsmagmainframedigital.com/nxtbooks/ibmsystemsmag/mainframe_20090506
http://www.nxtbook.com/nxtbooks/ibmsystemsmag/mainframe_20090304
http://www.nxtbook.com/nxtbooks/mspcomm/ibmsystems_mainframe_200901
http://www.nxtbookMEDIA.com