IBM Systems magazine, IBM Z Nov/Dec 2020 - SD22

ARTICLE

HA/DR BACKUP

Implementing Continuous Availability
By Shirley S. Savage

N

atural disasters such as
hurricanes and earthquakes
can cause outages. So
can electric power disruptions,
cyberattacks and human error.
Outages are expensive. The cost of
a cyberattack is estimated at $1.1
million while the average cost of
network downtime varies from $5,600
per minute to $22,000 per minute,
depending on the industry. These
days, organizations are expected to be
continuously available no matter what
happens.
Two successive hurricanes were
the catalyst for the Department of
Treasury of Puerto Rico to upgrade
its systems to increase resiliency. The
treasury crafted a plan to restore its
system should its IBM Z* server be
affected by an outage. The treasury
worked with IBM, Truenorth and PSR
to create a comprehensive disaster
management system based on
IBM Z solutions. It installed an IBM
z14* server to replace its existing
mainframe. IBM Global Mirror
enables the treasury to replicate data
asynchronously to another IBM z14 at
a disaster recovery (DR). The treasury
also upgraded its storage system with
IBM DS8884 storage and IBM TS7760
tape systems.
With the new DR system, the
treasury is confident that its
applications will be operational at

the DR site. The recovery window is
estimated to be 35 hours, although
that could be reduced to a couple
hours with additional configurations
and hardware.
Puerto Rico's experience highlights
five DR best practices: redundancy
protection, automate where possible,
test your system, document processes
and innovate for the future.
"We never know when another
hurricane may hit Puerto Rico, but at
least we know that we're now better
prepared to absorb the impact and
recover quickly," says the treasury's
CIO Raúl Cruz Franqui ("Puerto
Rico's Disaster Recovery Planning Is
a Blueprint for Data Protection," bit.
ly/2oDkBR7).

The Need for
Continuous Availability
Continuous availability (CA) has
become the preferred standard for
system availability. Pressure from
regulators, stakeholders and customers
for 100% availability has enterprises
looking for the best practices to keep
their systems up and running.
CA is made up of two parts,
according to David Petersen, IBM
Distinguished Engineer and chief
architect of IBM Geographically
Dispersed Parallel Sysplex (GDPS).
High availability (HA) masks
unplanned outage and continuous

22 2020 ibmsystemsmag.com/solutions-directory

operations (CO) mask planned
outages. DR comes into play when HA
isn't available.
Three major trends are driving
the need for sophisticated CA/DR
solutions, says Nick Clayton, IBM
Distinguished Engineer, Enterprise
Storage Development. They are:
* The time to recover from
outages is shrinking
* All industry segments need
to improve CA/DR
* The need to recovery quickly
from logical data corruption
and destruction is driven by
concerns about ransomware
and other cyberattacks
CA/DR methods need to go further
than having multiple geographically
disperse copies of data. CA/DR must
have multiple and frequent snapshots
of live data as well as tools to detect
data breaches, a determination
of when the data was corrupted
and recent, clean data to use for
restoration.
IBM GDPS automates the CA/DR
process for clients. It can also scale to
three- and four-site configurations,
giving clients a robust backup
solution. CA is well within every
client's reach ("IBM CA/DR Solutions
on Z Combat System Availability
Threats," bit.ly/2VCBU0G).


http://bit.ly/2oDkBR7 http://bit.ly/2oDkBR7 http://bit.ly/2VCBU0G http://www.ibmsystemsmag.com/solutions-directory

IBM Systems magazine, IBM Z Nov/Dec 2020

Table of Contents for the Digital Edition of IBM Systems magazine, IBM Z Nov/Dec 2020

Welcome: Helping clients thrive in an always-on world
Currents: Increased uptime reduces TCO for IBM Z clients
Currents: On the web
Currents: Celebrating 20 years of Linux on IBM Z
Currents: The new and improved Master the Mainframe
Features: Cyberresilience: Moving Beyond Cybersecurity: A successful resilience strategy stems from well-defined requirements for high availability, continuous operations and continuous availability
Features: Expanding Cloud Capabilities: Red Hat OpenShift can now run on IBM Z, IBM LinuxONE and IBM Power for an infrastructure-agnostic model
Techbits: Improve recovery time with IBM System Recovery Boost
Techbits: How to utilize IBM Safeguarded Copy
Techbits: Ask the expert: IBM Secure Execution
Beyond the Box: M&T Bank Senior Mainframe Security Engineer and IBM Champion Byron Smith promotes the mainframe through mentorship
IBM Systems magazine, IBM Z Nov/Dec 2020 - Intro
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover1
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover2
IBM Systems magazine, IBM Z Nov/Dec 2020 - 1
IBM Systems magazine, IBM Z Nov/Dec 2020 - 2
IBM Systems magazine, IBM Z Nov/Dec 2020 - 3
IBM Systems magazine, IBM Z Nov/Dec 2020 - 4
IBM Systems magazine, IBM Z Nov/Dec 2020 - 5
IBM Systems magazine, IBM Z Nov/Dec 2020 - Welcome: Helping clients thrive in an always-on world
IBM Systems magazine, IBM Z Nov/Dec 2020 - 7
IBM Systems magazine, IBM Z Nov/Dec 2020 - Currents: On the web
IBM Systems magazine, IBM Z Nov/Dec 2020 - 9
IBM Systems magazine, IBM Z Nov/Dec 2020 - 10
IBM Systems magazine, IBM Z Nov/Dec 2020 - 11
IBM Systems magazine, IBM Z Nov/Dec 2020 - Currents: Celebrating 20 years of Linux on IBM Z
IBM Systems magazine, IBM Z Nov/Dec 2020 - 13
IBM Systems magazine, IBM Z Nov/Dec 2020 - Currents: The new and improved Master the Mainframe
IBM Systems magazine, IBM Z Nov/Dec 2020 - 15
IBM Systems magazine, IBM Z Nov/Dec 2020 - 16
IBM Systems magazine, IBM Z Nov/Dec 2020 - 17
IBM Systems magazine, IBM Z Nov/Dec 2020 - Features: Cyberresilience: Moving Beyond Cybersecurity: A successful resilience strategy stems from well-defined requirements for high availability, continuous operations and continuous availability
IBM Systems magazine, IBM Z Nov/Dec 2020 - 19
IBM Systems magazine, IBM Z Nov/Dec 2020 - 20
IBM Systems magazine, IBM Z Nov/Dec 2020 - 21
IBM Systems magazine, IBM Z Nov/Dec 2020 - 22
IBM Systems magazine, IBM Z Nov/Dec 2020 - 23
IBM Systems magazine, IBM Z Nov/Dec 2020 - Features: Expanding Cloud Capabilities: Red Hat OpenShift can now run on IBM Z, IBM LinuxONE and IBM Power for an infrastructure-agnostic model
IBM Systems magazine, IBM Z Nov/Dec 2020 - 25
IBM Systems magazine, IBM Z Nov/Dec 2020 - 26
IBM Systems magazine, IBM Z Nov/Dec 2020 - 27
IBM Systems magazine, IBM Z Nov/Dec 2020 - Techbits: Improve recovery time with IBM System Recovery Boost
IBM Systems magazine, IBM Z Nov/Dec 2020 - 29
IBM Systems magazine, IBM Z Nov/Dec 2020 - Techbits: How to utilize IBM Safeguarded Copy
IBM Systems magazine, IBM Z Nov/Dec 2020 - Techbits: Ask the expert: IBM Secure Execution
IBM Systems magazine, IBM Z Nov/Dec 2020 - Beyond the Box: M&T Bank Senior Mainframe Security Engineer and IBM Champion Byron Smith promotes the mainframe through mentorship
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover3
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover4
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD1
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD2
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD1
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD2
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD3
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD4
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD5
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD6
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD7
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD8
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD9
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD10
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD11
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD12
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD13
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD14
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD15
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD16
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD17
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD18
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD19
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD20
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD21
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD22
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD23
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD24
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD25
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD26
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD27
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD28
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD29
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD30
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD31
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD32
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD33
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD34
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD35
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD36
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD39
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD40
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD41
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD42
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD43
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD44
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD45
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD46
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD47
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD48
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD49
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD50
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD51
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD52
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD53
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD54
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD55
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD56
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD3
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD4
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