IBM Systems magazine, Mainframe - November/December 2018 - 35

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TECH SH OWCASE
with the host and virtual tape
environments are set up correctly.
Capacity planners love to
focus in on Tape Volume Cache
(TVC) rated in hourly utilization
in gigabytes. An average of active
gigabytes rated against the maximum of TVC size and an 85 percent
maximum threshold shows a good
picture of virtual tape performance
in the environment.
Another important consideration of virtual tape metrics lies in
the area of recovery point objective
(RPO). RPO is the maximum targeted time period in which data might
be lost from an IT service due to
major issues with production.
Shops often strive to hit zero RPO
on virtual tape for perfect business
continuity, and the ability to utilize
virtual tape is spot on when it
comes to this objective.
6$&'ÄÃ&Ä"ÉÃÇÄ Ã% ®ÇÄ &1Ã
impact RPO. Data from virtual tape
storage can be electronically moved
over a network to another site, just
like with DASD. A variety of reporting mechanisms show exactly how
much data is located at off-site
locations.

An Applied Use of Virtual
Tape Storage
The manufacturing and banking
industries have been heavy users
of virtual tape in the past, and that
still rings true today. Virtual tape
storage performance capabilities
match up well with disk technologies and have a true 4:1 compression capability, making it a solid
solution to consider.
One large manufacturer (bit.
ly/2MopDeN), for example, was
facing the problem of a soon-to-be
unsupported tape infrastructure,
Ä Èî0 Ã&%Ã%%'ÉÃ"$!(ÉÈÃ&!ÃÆÉÃÄÃ
challenge. The company was very
much committed to mainframes
but it needed relief to better its
OPEX versus CAPEX approach.
Enter the virtual tape system.
After completing a modernization study for tape that reviewed

its current tape environment, a
proposition was pursued to replace the company's current tape
infrastructure with virtual tape
storage. The company was able to
perform the migration effort in
five weeks.
The move to virtual tape storage
brought the company several bene®&%QÃ Ç'È PÃ
*

*

*
*

The end of management concerns on pending issues with
the old tape environment
The ability to stay within a
given budget for the new tape
replacement to virtual tape
storage
Improved backup times
Removal of expensive tape
handling and storage costs

Walking the Path of
Virtual Tape
One of the biggest advantages of
virtual tape over real tape is that
it can bring a quick ROI, which is a
good thing when it comes to managing your data center expenses.
If you haven't already done so,
you should take a look at an open
storage-based virtual tape system
as it can provide cost savings,
the ability to scale and increased
reliability.
Because virtual tape is really a disk technology, data can
be electronically transferred,
boding well for DR applications.
The software-only virtual tape
systems are the least expensive.
Performance, when compared
to real tape, is better, especially
when you consider the elimination of rewind and mount times by
the operation staff.
Virtual tape takes on a tried and
tested storage methodology, making it better without losing the original format. The original format is
tape, but with virtual tape systems,
it's now in a disk format. You owe it
to yourself to better understand the
path that virtual tape can provide
in your data center.

Sizing a Virtual
Tape System
No two mainframe customers are
the same, and therefore it follows
that every customer will have different virtual tape requirements
for capacity, performance, availability and budget.
7KHÃÀUVWÃVWHSÃWRÃVXFFHVVIXOO\Ã
sizing a virtual tape system is to
determine the amount of data
that your mainframe applications create and use that
must be stored on virtual tape.
Depending on your applications
and workload, the latest data
deduplication technologies can
VLJQLÀFDQWO\ÃUHGXFHÃWKHÃDPRXQWÃ
of storage capacity required,
the number of copies you can
retain and decrease your costs.
Performance requirements
should consider current backup
windows, replication bandwidth
and RPOs.
And of utmost importance,
you must determine the level of
data availability that your business requires. The number and
location of replicated copies,
if any, as well as the level of
hardware and data resiliency
should be a key part of your
assessment.
A thorough assessment
should also quantify TCA and
7&2ÃRYHUÃDÃWKUHHÃWRÃÀYHÃ\HDUÃ
period, including the costs of
incremental capacity and performance and annual support.
Size does matter, but it's only
a piece of the equation.

Sean Seitz

Vice president of technical
services, Optica Technologies
Sean has 30-plus years of
experience implementing and
supporting infrastructure and
storage solutions for mainframe
customers.
NOVEMBER/DECEMBER 2018 | 35


http://bit.ly/2MopDeN http://bit.ly/2MopDeN

IBM Systems magazine, Mainframe - November/December 2018

Table of Contents for the Digital Edition of IBM Systems magazine, Mainframe - November/December 2018

Table of Contents
Editor's Desk: Room for imporovement
Currents: The big redesign unveil
Currents: ExxonMobil and IBM improce the mobile app user experience
Currents: 8 emerging storage trends of 2018
Currents: Solutions
Currents: Remembering Dr. John Ehrman: The father of IBM High Level Assembler
Partner POV: DevOps requires quality, velocity and efficiency to transform software delivery life cycles
Cover Story: Enabling opportunity: Get the most out of IBM Z with Secure Service Containers and a consumption-based pricing model
Feature 1: Skilling up: How Russell Tobin, Per Scholas and IBM brought new talent into the mainframe workforce
TECH Showcase: How to reap the full benefits of virtual tape storage, properly measure its performance and choose the right strategy for your business
Techbits: Banco do Brasil improves processes after migrating to the IBM Db2 Utilities Suite for z/OS
Techbits: Multifactor authentication is a user-friendly upgrade to password-only systems
Beyond the Box: The mainframe Playground Education Initiative opens the mainframe to the next generation
Reference Point - Global Events, Education, Resources for Power Systems
2018 Mainframe Solutions Edition Product Index
IBM Systems magazine, Mainframe - November/December 2018 - Intro
IBM Systems magazine, Mainframe - November/December 2018 - Cover1
IBM Systems magazine, Mainframe - November/December 2018 - Cover2
IBM Systems magazine, Mainframe - November/December 2018 - 1
IBM Systems magazine, Mainframe - November/December 2018 - 2
IBM Systems magazine, Mainframe - November/December 2018 - 3
IBM Systems magazine, Mainframe - November/December 2018 - Table of Contents
IBM Systems magazine, Mainframe - November/December 2018 - 5
IBM Systems magazine, Mainframe - November/December 2018 - Editor's Desk: Room for imporovement
IBM Systems magazine, Mainframe - November/December 2018 - 7
IBM Systems magazine, Mainframe - November/December 2018 - Currents: The big redesign unveil
IBM Systems magazine, Mainframe - November/December 2018 - Currents: ExxonMobil and IBM improce the mobile app user experience
IBM Systems magazine, Mainframe - November/December 2018 - Beyond the Box: The mainframe Playground Education Initiative opens the mainframe to the next generation
IBM Systems magazine, Mainframe - November/December 2018 - 11
IBM Systems magazine, Mainframe - November/December 2018 - Currents: Solutions
IBM Systems magazine, Mainframe - November/December 2018 - Currents: Remembering Dr. John Ehrman: The father of IBM High Level Assembler
IBM Systems magazine, Mainframe - November/December 2018 - Partner POV: DevOps requires quality, velocity and efficiency to transform software delivery life cycles
IBM Systems magazine, Mainframe - November/December 2018 - 15
IBM Systems magazine, Mainframe - November/December 2018 - Cover Story: Enabling opportunity: Get the most out of IBM Z with Secure Service Containers and a consumption-based pricing model
IBM Systems magazine, Mainframe - November/December 2018 - 17
IBM Systems magazine, Mainframe - November/December 2018 - 18
IBM Systems magazine, Mainframe - November/December 2018 - 19
IBM Systems magazine, Mainframe - November/December 2018 - 20
IBM Systems magazine, Mainframe - November/December 2018 - 21
IBM Systems magazine, Mainframe - November/December 2018 - Feature 1: Skilling up: How Russell Tobin, Per Scholas and IBM brought new talent into the mainframe workforce
IBM Systems magazine, Mainframe - November/December 2018 - 23
IBM Systems magazine, Mainframe - November/December 2018 - 24
IBM Systems magazine, Mainframe - November/December 2018 - 25
IBM Systems magazine, Mainframe - November/December 2018 - 26
IBM Systems magazine, Mainframe - November/December 2018 - 27
IBM Systems magazine, Mainframe - November/December 2018 - 28
IBM Systems magazine, Mainframe - November/December 2018 - TECH Showcase: How to reap the full benefits of virtual tape storage, properly measure its performance and choose the right strategy for your business
IBM Systems magazine, Mainframe - November/December 2018 - 30
IBM Systems magazine, Mainframe - November/December 2018 - 31
IBM Systems magazine, Mainframe - November/December 2018 - 32
IBM Systems magazine, Mainframe - November/December 2018 - 33
IBM Systems magazine, Mainframe - November/December 2018 - 34
IBM Systems magazine, Mainframe - November/December 2018 - 35
IBM Systems magazine, Mainframe - November/December 2018 - Techbits: Banco do Brasil improves processes after migrating to the IBM Db2 Utilities Suite for z/OS
IBM Systems magazine, Mainframe - November/December 2018 - 37
IBM Systems magazine, Mainframe - November/December 2018 - Techbits: Multifactor authentication is a user-friendly upgrade to password-only systems
IBM Systems magazine, Mainframe - November/December 2018 - 39
IBM Systems magazine, Mainframe - November/December 2018 - 40
IBM Systems magazine, Mainframe - November/December 2018 - Cover3
IBM Systems magazine, Mainframe - November/December 2018 - Cover4
IBM Systems magazine, Mainframe - November/December 2018 - Reference Point - Global Events, Education, Resources for Power Systems
IBM Systems magazine, Mainframe - November/December 2018 - 2018 Mainframe Solutions Edition Product Index
IBM Systems magazine, Mainframe - November/December 2018 - SE2
IBM Systems magazine, Mainframe - November/December 2018 - SE3
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