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BusinessShadow
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High Availability and Disaster Recovery.
Two Challenges. One Solution.
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How much Downtime and Loss of Data can you afford?
How fast can your Business be Up and Running after a Disaster?
One or the other scenarios on the previous page
might sound familiar to you.
Furthermore, additional business requirementslead to a large degree of inter-dependency and
overall complexity of IT architectures. The avail-
ability of application landscapes and their under-
lying databases are critical.
Changing global paradigms and legal require-
ments add the need of providing full Disaster
Recovery protection, including site failure pro-
tection. Only very large distances of several
hundred miles between production and backup
site provide true protection. Traditional mirroring
concepts based on storage or blocklevel come
with too much complexity, impact productive
landscape and generate tremendous costs.
Prepare for the Future!
IT systems are constantly threatened by applica-
tion downtime and loss of data. The threats are
real and come from many directions. Not all of the
threats can be avoided. The important question
is: are you ready and prepared? How fast can yoube back in business? Can you provide a Plan B
which gets you back in business within a few
minutes with no or minimum damage? If you ex-
perience a major incident, this becomes a
challenging race against time.
Scenario 1:
Faulty Software Upgrade
The current application software is expected to be upgraded
over the weekend. The subsequent tests indicate a malfunc-
tion and thus leaves a useless system. The only option to
resume operation is a time-intensive process restoring data
from tape to disk image, extending the planned maintenancewindow.
Take a deep breath: It can be so much easier.
Scenario 2:
Physical Destruction or Disaster Incident
Lightning strikes the central power supply and/or damages
the centralized IT system. Floods, severe weather, earth-
quakes or terrorist attacks interrupt the application systems
or access to the same. Data and applications need to be
restored at an off-site location a race against time.
Stay calm: You will win the race.
Scenario 3:
Accidental Deletion of Data
It happens quickly: critical data is irrevocably deleted. The
administrator drops the wrong database. Important les or
directories are deleted. Backups must be available and an
immediate and awless manual restore is necessary tokeep your business operational.
Lean back and relax: Your data is available.
Other Scenarios:
4.Malicious manipulation by own staff or hackers
5.Hardware problems
6.Server move without downtime
7.Or simply: your business dictates you to comply with
current legislation which requires a functioning risk
management. A Business Continuity Plan is necessary
to comply with SOX and other regulations.
We will make sure that you are ready in any case.
BusinessShadow is there for you.
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Traditional Methods are not enough
Todays replication tools are inadequate to pro-
vide full data and application protection. Syn-
chronous or near-synchronous data replicationtools only protect against local hardware failures
(Hardware High Availability), but do not protect
against software or user errors. Stretching the
data replication tools to mirror over large dis-
tances help to cover site failures (Disaster Re-
covery), but offer low data i ntegrity and typically
a poor Return on Investment (ROI). Manual
Backup and Restore procedures provide the data
integrity but lack reasonable Recovery Point and
Recovery Time Objectives. In addition, the com-
plexity of todays application landscapes requires
in-depth know-how of the detailed system archi-
tecture to get the systems back to life.
Comprehensive High Availability
and Disaster Recovery Protection.
Many Challenges. One Solution.
Libelle creates Leeway for Availability and
Disaster Prevention
We make it easy to handle these challenges.
Read on, and learn how you can recover your
data quickly, easily and consistently when it
comes to the worst case.
Scenarios from the World
of Corporate IT
BusinessShadow
protects your data, your applications and entire
production sites. The solution reduces potential downtime and
retrieves lost data within minutes easy to use and cost-effective.
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BusinessShadowmakes your
High Availability and Disaster Recovery
Architecture Safe and Sound.
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Foresight in assessing potential threats is the basis
for your risk avoidance strategy.
BusinessShadow is the ideal software solution which
enables you to reduce the risk of data loss, minimize
application downtime, and provide amazingly fast
error recovery. BusinessShadow provides protection
independent from the cause and independent from
the consequence of the incident: hardware failure,
corrupt data, software error or human error.
BusinessShadow supports both homogeneous and
heterogeneous system landscapes with a single
standardized interface. Also the distance and network
between your production and backup system means
no boundary. Data is mirrored with minimum band-
width requirements.
Any major incident is a race against time where every
second counts. We provide a simplied way to han-
dle the administration and failover without requiring
specic in-depth know-how.
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45 % Software Error
15 % Hardware Error
40 % Human Error
Reasons for Downtime
Application downtimes and data loss are less
than ever caused by hardware problems. More
than 80% of all downtime incidents are actually
caused by software or user errors instead.
These are exactly the areas where traditional
concepts will fail in providing protection.
Redundancy will be of no help in case of corruptor deleted data. In this case, resuming business
operation will require a manual restore from
tape or disk image.
This is not only annoying, but also very time-
consuming.
Graphic Data Source: Gartner Group
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The BusinessShadowSoftware lets you stay in
business whatever the incident may be.
BusinessShadow provides uncompromised
and true distance independence.
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The Libelle Principle
Brilliantly Simplied
Simply Brilliant.
The Time-Delayed Data Mirror!
Take an example: your application crashes at2:00 pm and critical data is irrevocably deleted.
With BusinessShadow your application and
data can be back where it was at 1:59:59 pm
literally at the push of a button and a short wait
time of typically a couple of minutes.
The time-delayed data mirror provides a manage-
able buffer between the production and its mirror
system called the time-funnel. This time-funnel
receives current transactions from the production
database or le system. The time-funnel and all
data is physically stored on the mirror system and
current transactions are available on the mirror
system in case the production system becomes
unavailable or corrupted.
In the case of a disruption, applications can
simply be switched to the mirror system. Instead
of working with the same corrupted data which
caused the downtime on the production site, onlythe good transactions are applied to the mirror
system. Typically up to the point before the data
corruption on production occurred.
And all this happens within a few minutes
without restoring backup media.
Step 1: Initial Copy
During initial setup, all data from the production
system is copied to a secondary system (mirror
system) in a LAN or WAN setting. This system can
be located in another building, another city, another
country or on another continent. Proprietary data
transmission techniques based on standard net-
work protocols optimize the data transfer.
Step 2: Updating Changes
All changes in the production system are being
identied and transferred directly into the time-
funnel of the mirror system. With the optimized
data transmission techniques, even limited WAN
links will be used to maximum efciently.
Step 3: Time-Funnel
Transactions on the production system reside in
the time-funnel on the mirror system for a certain
amount of time, which can be set to any value
desired. The time-funnel value can be adjusted
during production just as needed. Only after the
end of the dened period, the transactions in the
time-funnel are applied to the mirror system.
Step 4: Failover to the Mirror System
In the case of an error on the production system,
time can literally be turned back to any time-stamp
prior to the occurrence of the error. Within a few
minutes, in which the time-funnel is emptied to the
desired point-in-time, the last consistent set of data
is used for running production on the mirror system.
The host name and IP-address are automatically
failing over to the mirror system, so that application
server and users are able to reconnect to the mirror
system without any changes.
Step 5: Failback to the Production System
The crashed production system is rebuilt while
production is running on the former mirror system
(which is now acting as the current production).
Normal operation is reestablished by changing
roles at the push of a button.
Highest Level of Protection
Based on a simple Principle
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BusinessShadow
is based on the Libelle patent to mirror data
time-delayed using a time-funnel.
Data Transfer via
TCP/IP-Sockets
LAN or WAN
GUI
Production System Mirror System
Easy to manage without
in-depth Know-how
Regardless of the Distance:
Data Protection in
another building,
another city,
another country,
another continent.
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The perfect Solution for your Disaster Recovery
and High Availability needs
In a Nutshell:
Minimum Downtime Higher Productivity Reduced Costs.
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Best in its Class Protection from the
Consequences of:
Corrupt or deleted data
Faulty software updates
Human error
Hardware problems
Disasters and sabotage
Your Benets:
Continuous and consistent backup of your
databases and le systems
Automated failover process of applications
and databases
Quick error recovery after failover to the
mirror system
Continue to work with the last consistent
set of data after a corruption
Automatic allocation of virtual IP-addresses/
hostnames
Holistic protection even in heterogeneous
environments
Min imum manual intervention on anapplication level
Very simplistic solution and extremely easy
to operate
Protect your Business regardless of:
Distance between production and mirror system Size of the systems
Hardware and Applications in use
Other Implementation Scenarios:
Simplistic approach for building backup
data centers
Transparent monitoring of critical IT processes
Automation of system refreshes by creating
test databases/environments
Planned failover to minimize planned downtime
Backup from the mirror system without affecting
production systems
Repor ting with production data on the mirror
system
Server relocation without downtime
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DBShadow
BusinessShadow is the integrated Libelle solution for complete
protection of systems (databases, le systems, communication)
and combines three unique components in a holistic way.
DBShadowfor Database Protection
The easiest way to create and manage a shadow database is
offered by Libelle with DBShadow, a product that protects
against the consequences of physical and user/software errors.
The creation of the database mirror, the shipping of archive les,
and the time-delayed recovery are automated by DBShadow.
The mirror operation can be monitored either through a Graphical
User Interface (GUI) or a Command Line Interface (CLI) with user
exits. It is a perfect t to be integrated with existing High Availa-
bility concepts and strategies. Production and mirror system, as
well as all processes are monitoring each other constantly.
Trouble tickets are issued automatically for system monitoring.
FSShadowfor File System Protection
Software/User Errors and physical problems are not only a threat
to the availability of databases, but also threaten the availability of
le systems.
The same way DBShadow protects databases; FSShadow
mirrors transactions time-delayed on a at le level (create, modi-
fy, and delete). All changes are copied instantly to the mirror
system, but stay in the time-funnel before they are applied to the
actual mirror le system.
SwitchApplicationfor Automation of Failover
SwitchApplication adds an additional virtual IP-address/hostname
to the production system. Part of the failover process is to acti-
vate the virtual IP-address/hostname on the mirror system and
remove them on the production system. DBShadow and
FSShadow are continuing the mirror operation and manage the
failover using the actual IP-addresses/host-names of the produc-
tion and of the mirror system. The system can thus always be
accessed with the same IP-address.
The failback is done the same way. The automatic restart of ap-
plications are implemented through user interfaces which offer
event-based triggers to automate environment-specic actions.
DBShadow
FSShadowFSShadow
SwitchApplicationSwitchApplication
Three in OneBusinessShadowBusinessShadow
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Support
Expect expert support: We will provide you with
dedicated Libelle Consultants to deliver support
services for your installation. Your primary con-
tacts are typically the Senior Consultants or
Solution Architects who implemented the solution
with you from the start.
Depending on your requirements, you can benet
from different tiers of software support. Our Soft-
ware Support range from basic weekday support
up to pro-active 24/7 monitoring for highly critical
environments.
Quality you can rely on
When it comes to High Availability, a high
standard of quality is essential.
Libelle is certied according to
DIN EN ISO 9001:2008.
High Availability must meet the highest
requirements
BusinessShadow exceeds the high standards
of integrating into a variety of user applications.
Among many certications, BusinessShadow
comes with a SAP certied integration.
Implementation
The implementation ofBusinessShadow and
User Training is performed by Senior Libelle
Consultants or by a Certied Libelle Partner.
In the run-up we determine the optimal congu-
ration for your particular landscape followed by
the actual implementation typically without
any downtime.
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Questions?
More Information?
You determine the Level of Protection you need
and we provide the Service for it.
Libelle is there for you!
Our mission is to provide more stability to your
business processes at any time and under any
and every circumstance.
How to contact us:
T +49 (0)711 / 78335-0 or
For more information, please visit our website:
www.Libelle.com
Libelle AG
Gewerbestr. 42 I 70565 Stuttgart I Germany I
It doesnt matter whether or not you can predict the future.
What does matter is that you are prepared for it. Perikles
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Libelle is an established software specialist for Disaster
Recovery and High Availibility solutions since 1994.
Medium and large sized businesses rely on our software
solutions when it comes to backing up and restoring their
data. You will benet from the best possible service from
a single source. Our support, distribution and software de-
velopment are centralized in our Headquarters in Stuttgart,
Germany. With an extensive distribution network of our
business partners we have been serving customers all
across the world for many years.
Our solutions are complemented with a wide portfolio of
professional services from designing high-end Disaster
Recovery and High Availability concepts to implementation
with a proactive service and support concept 24 hours a
day, 7 days a week.
The proximity to our customers and the high standard of
quality of our solutions are important to us. This is shown by
the fact that Libelle is certied with DIN EN ISO 9001:2008.
Years of experience and competence and a decade of hands
on experience, know how and a comprehensive portfolio of
solutions and services have brought us where we are today.
Libelle, the Libelle Logo, BusinessShadow, DBShadow and FSShadow
are registered trademarks of Libelle AG. All other brand and product names
mentioned are terms and in some cases registered trademarks belonging to the
respective companies.
Libelle AG, December 2009. Subject to change.
Design and Production: bro punkt for visual design www buero punkt de
BusinessShadow
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Protect your Business against
Crashes.
Libelle AG I Gewerbestr. 42 I 70565 Stuttgart I Germany I T + 49 711 / 78335-0 I F + 49 711 / 78335-148 I www.Libelle.com