IBM Systems magazine, Mainframe - July/August 2019 - 16

C UR R ENTS
exploits GDPS Continuous Availability for key workloads and DR.
Horizontally, the model describes
service characteristics at each level, such as automation and systems
management, and includes compute requirements for each level,
along with data availability for each
level, all within the data center. The
model also offers data recovery options between data centers for DR.
The following describes the four
levels of the resiliency model:
1. Resilient/Reliable
The IBM Z architecture has built-in
self-detection, error correction
and redundancy to eliminate single points of failure, delivering the
best reliability of any enterprise
system in the industry, along with
99.999% availability. Transparent
processor sparing and dynamic
memory sparing enable concurrent maintenance and seamless
scaling without downtime. Business workloads that fail can be
restarted in place. If z/OS or the
LPAR fails, another instance of the
workload (in another LPAR) can
absorb the work. If the server fails,
the workload can be restarted
on another server. The resulting
workload impact could be elongated due to the need to locate data
copies and recover manually.
2. Failover
By installing a second IBM z14*
in the environment, component
resource sharing begins the road
to full system redundancy. A spare

Restoration objectives for disasters are usually
expressed in hours, including the time to switch
operations over to an alternate data center using
replicated data. The IBM Z platform makes
achieving recovery objective times easy.
È$Ä)É$Ã)&ïÉ0ÃÉ!$1ÃÇÄ ÃÆÉÃ
È1 ÄÇÄ1Ã$ÉÇ! ®'$ÉÈÃ&!Ã$ÉÇ!(er from a hardware failure. Service
management processes are expected to be maturing and reactive.
Furthermore, by setting up Metro
(synchronous) Mirror, and Global
(asynchronous) Mirror for longer
distances, with IBM Copy Services
Manager (CSM), fast data replication can be enabled with little or no
data loss.
3. Fault Tolerant: Mitigating
Planned and Unplanned Outages
At this level, Parallel Sysplex is introduced with two or more servers,
multiple LPARs and associated
DASD. z/OS drives dynamic workload routing to application regions
on any systems in the sysplex. Databases are shared across members
of the sysplex, avoiding unnecessary database replicas. By introducing GDPS, the system can take
advantage of Global Mirror or Metro
Mirror data replication with GDPS
handling all recovery automation.
In failover situations, business
impact can be reduced to minutes
with improved automation. This

also enables DR by replicating data
to another site, with GDPS providing the failover capability. Metro
Mirror and Global Mirror solutions
can be combined into three- and
four-site solutions. Auto-detection
and auto-restart features allow the
system to recover in 20-30 minutes.
4. Fault Tolerant Within the
Primary Data Center; GDPS
Continuous Availability for
Key Workloads; DR
GDPS Continuous Availability
consists of two sites separated
by virtually unlimited distances,
running the same applications with
the same data sources, to provide
cross-site workload balancing, CA
and DR. This enables workloads
to fail over to another sysplex for
planned or unplanned workload
outages within seconds.
The Resiliency Maturity Model
enables you to determine your
systems' recovery needs, invest toward those targets, and
re-evaluate organization plans,
competition, and stakeholder's
expectations periodically in light
of changing needs.

SOLUTIONS // Learn more about these business partner solutions and others at ibmsystemsmag.com
APPULSE // IBA Group
ibagroupit.com

CleverView for TCP/IP v9.2 // Applied Expert Systems Inc.
aesclever.com

Features include:

Features include:

*
*
*

*

Uninterrupted critical business application operation
Automatic solution generation for typical application support problems
Constant and flexibly configurable monitoring for operational problems in critical z/OS* subsystems such as IMS*, CICS*, MQ*, Db2*
and more

16 | JULY/AUGUST 2019 IBMSYSTEMSMAG.COM

*
*

A new dashboard with improved graphics that communicate
more meaning and function
A "drill-down" ability that provides details without presenting
a cluttered screen
Quick access to information regarding alerts


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IBM Systems magazine, Mainframe - July/August 2019

Table of Contents for the Digital Edition of IBM Systems magazine, Mainframe - July/August 2019

Table of Contents
Editor's Desk: Resiliency is key in an 'always-on' world
Currents: Alphabet soup of compliance
Currents: X-Force Red discovers sign-in kiosk vulnerabilities
Currents: IBM Z hardware and software maximize resiliency
Currents: A robot walks into a bar
Currents: How resilient is your IBM Z system of record?
Currents: Solutions
Partner POV: Redirecting select mainframe workloads to the cloud could create new opportunities
Cover Story: Fail Safe: Puerto Rico's disaster recovery planning is a blueprint for your data protection
Feature 1: Elevating Hybrid Cloud: IBM Z strengthens security, resiliency and open development for cloud infrastructure
Champions Showcase: The 2019 IBM Z Champions are committed to communicating the value of the platform
Hot Topics: z/OS Cloud Broker leverages common cloud platforms to enable z/OS resource consumption
Techbits: Disposable data can pose legal liabilities and security risks
Techbits: Raising the bar on IBM Z resiliency with GDPS
Techbits: Get real-time insight and data security with Open Data Analytics for z/OS
Techbits: Ask the expert: z/OS data set encryption
Beyond the Box: z/VM Senior Software Engineer Brian Wade finds similarities between his job and his life as a pilot
Reference Point - Global Events, Education, Resources for Power Systems
2019 Mainframe Solutions Edition Product Index
IBM Systems magazine, Mainframe - July/August 2019 - Intro
IBM Systems magazine, Mainframe - July/August 2019 - Cover1
IBM Systems magazine, Mainframe - July/August 2019 - Cover2
IBM Systems magazine, Mainframe - July/August 2019 - 1
IBM Systems magazine, Mainframe - July/August 2019 - 2
IBM Systems magazine, Mainframe - July/August 2019 - 3
IBM Systems magazine, Mainframe - July/August 2019 - Table of Contents
IBM Systems magazine, Mainframe - July/August 2019 - 5
IBM Systems magazine, Mainframe - July/August 2019 - Editor's Desk: Resiliency is key in an 'always-on' world
IBM Systems magazine, Mainframe - July/August 2019 - 7
IBM Systems magazine, Mainframe - July/August 2019 - Currents: Alphabet soup of compliance
IBM Systems magazine, Mainframe - July/August 2019 - Currents: X-Force Red discovers sign-in kiosk vulnerabilities
IBM Systems magazine, Mainframe - July/August 2019 - Currents: IBM Z hardware and software maximize resiliency
IBM Systems magazine, Mainframe - July/August 2019 - 11
IBM Systems magazine, Mainframe - July/August 2019 - Currents: A robot walks into a bar
IBM Systems magazine, Mainframe - July/August 2019 - 13
IBM Systems magazine, Mainframe - July/August 2019 - Currents: How resilient is your IBM Z system of record?
IBM Systems magazine, Mainframe - July/August 2019 - 15
IBM Systems magazine, Mainframe - July/August 2019 - Currents: Solutions
IBM Systems magazine, Mainframe - July/August 2019 - 17
IBM Systems magazine, Mainframe - July/August 2019 - Partner POV: Redirecting select mainframe workloads to the cloud could create new opportunities
IBM Systems magazine, Mainframe - July/August 2019 - 19
IBM Systems magazine, Mainframe - July/August 2019 - Cover Story: Fail Safe: Puerto Rico's disaster recovery planning is a blueprint for your data protection
IBM Systems magazine, Mainframe - July/August 2019 - 21
IBM Systems magazine, Mainframe - July/August 2019 - 22
IBM Systems magazine, Mainframe - July/August 2019 - 23
IBM Systems magazine, Mainframe - July/August 2019 - 24
IBM Systems magazine, Mainframe - July/August 2019 - 25
IBM Systems magazine, Mainframe - July/August 2019 - 26
IBM Systems magazine, Mainframe - July/August 2019 - 27
IBM Systems magazine, Mainframe - July/August 2019 - Feature 1: Elevating Hybrid Cloud: IBM Z strengthens security, resiliency and open development for cloud infrastructure
IBM Systems magazine, Mainframe - July/August 2019 - 29
IBM Systems magazine, Mainframe - July/August 2019 - 30
IBM Systems magazine, Mainframe - July/August 2019 - 31
IBM Systems magazine, Mainframe - July/August 2019 - 32
IBM Systems magazine, Mainframe - July/August 2019 - 33
IBM Systems magazine, Mainframe - July/August 2019 - 34
IBM Systems magazine, Mainframe - July/August 2019 - 35
IBM Systems magazine, Mainframe - July/August 2019 - 36
IBM Systems magazine, Mainframe - July/August 2019 - 37
IBM Systems magazine, Mainframe - July/August 2019 - Champions Showcase: The 2019 IBM Z Champions are committed to communicating the value of the platform
IBM Systems magazine, Mainframe - July/August 2019 - 39
IBM Systems magazine, Mainframe - July/August 2019 - 40
IBM Systems magazine, Mainframe - July/August 2019 - 41
IBM Systems magazine, Mainframe - July/August 2019 - 42
IBM Systems magazine, Mainframe - July/August 2019 - 43
IBM Systems magazine, Mainframe - July/August 2019 - 44
IBM Systems magazine, Mainframe - July/August 2019 - 45
IBM Systems magazine, Mainframe - July/August 2019 - Hot Topics: z/OS Cloud Broker leverages common cloud platforms to enable z/OS resource consumption
IBM Systems magazine, Mainframe - July/August 2019 - 47
IBM Systems magazine, Mainframe - July/August 2019 - 48
IBM Systems magazine, Mainframe - July/August 2019 - 49
IBM Systems magazine, Mainframe - July/August 2019 - Techbits: Disposable data can pose legal liabilities and security risks
IBM Systems magazine, Mainframe - July/August 2019 - Techbits: Raising the bar on IBM Z resiliency with GDPS
IBM Systems magazine, Mainframe - July/August 2019 - 52
IBM Systems magazine, Mainframe - July/August 2019 - Techbits: Get real-time insight and data security with Open Data Analytics for z/OS
IBM Systems magazine, Mainframe - July/August 2019 - Techbits: Ask the expert: z/OS data set encryption
IBM Systems magazine, Mainframe - July/August 2019 - 55
IBM Systems magazine, Mainframe - July/August 2019 - Beyond the Box: z/VM Senior Software Engineer Brian Wade finds similarities between his job and his life as a pilot
IBM Systems magazine, Mainframe - July/August 2019 - Cover3
IBM Systems magazine, Mainframe - July/August 2019 - Cover4
IBM Systems magazine, Mainframe - July/August 2019 - Reference Point - Global Events, Education, Resources for Power Systems
IBM Systems magazine, Mainframe - July/August 2019 - 2019 Mainframe Solutions Edition Product Index
IBM Systems magazine, Mainframe - July/August 2019 - SE2
IBM Systems magazine, Mainframe - July/August 2019 - SE3
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