Backup Software is Dead .pdf
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Original filename: Backup Software is Dead .pdf
Title: Backup Software is Dead V8
Author: Steven Blumenau
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Backup Software is Dead. Long Live Data Management!
Quick, what was the first backup method? …. The second
punch card. Just in case the first one was jammed!
There is a disturbance in “The Matrix”
Backup software, as we know it today, emerged during the
1970’s with the advent of disk drives being used as primary
media. At the time, disk media was cost prohibitive to store
anything but production data and tape was a cost-‐effective
alternative to store copies of data. The behavioral differences
between the random access, block-‐addressed disk and the
sequential access, streaming tape media created a need for
software that could bridge the data movement and format
between the two disparate media types.
Backup software designers had to find a trade-‐off between
downtime that a business could afford to backup the data
(“Backup Window”) vs. the downtime resulting from the time
to recover lost data (“Restore Window”).
Backup software was born.
Deployment of Backup software in IT infrastructure led to the
creation of a whole new set of processes and operational
behaviors.
The design of backup software assumes no other activity
during the Backup Window. As businesses grew, application
operations time started to overlap with the Backup Window,
while at the same time, increase in data size expanded the
Backup Window itself. This meant that backup software was
unable to complete its operation, leaving critical business
information vulnerable to loss, without impacting business
applications.
Backup software began humbly enough with the function of
reading data from a server, transforming it to an optimized
format for writing to tape and keeping a catalog of data and
where it was stored. Pretty soon, the amount of data being
backed up exceeded the capacity
Time to recover data largely
of a single tape and tape libraries
For something as prevalent in IT,
depended on the time to load the
were introduced. Backup
Backup software is an incredibly
necessary tape media and extract
software added the functions of
data. While a daily backup of all
ingenious
d
esign.
library and media management,
the data ensured quicker recovery
managing the robotics to load the
by requiring fewer tapes,
right media into the drives, re-‐using media and expiring data.
performing these full backups every night was not only
Very quickly, library and media management became a major
prohibitively expensive, it also meant a significant Backup
part of backup software’s functionality.
Window every day.
The Genius of Backup Software Design
For something as prevalent in IT, Backup software has an
incredibly ingenious design. Backup software designers not
only had to deal with technology issues, but also had to deal
with operational and business workflows, constraints and
limitations. The assumptions for the design included the
following:
§
§
§
§
§
Storage was an integral part of the Operating System
(OS) and the only way to access data was to read data
from the OS. So, backup “agents” were designed.
Business applications could take a down time during
nights and weekends, because business activity was low
during those periods.
Tape media characteristics allow for rapid streaming of
data in and out of tape as long as the access was
sequential
Disks were prohibitively expensive to store extra copies
of data
Data needed to be restored in a reasonable amount of
time.
To balance the competing requirements of business uptime,
Backup Window and Restore Window, IT organizations
created the “WeeFDI” schedule: Weekly Full, Daily
Incremental backups. The assumption was that business
activity was at a low during weekends and at night; so having
backup software run during these periods would have the
least impact.
The ingenuity of “WeeFDI” schedule also addressed the
requirement for a reasonable time to recover data; Full
backup during the weekend, and incremental backups during
weekdays, so that no data would be more than 7 tapes away.
The worse case recovery would be one full recovery from the
Sunday tape, and overlaying it with data from tapes from
each day of the week.
The WeeFDI schedule was a creative solution, until the very
assumptions it was built on, changed. Quickly, it became a
liability, driving an entirely new technology called “data
DeDuplication”.
`
02022011
Meanwhile, The World became Flat
be the process of “mounting” appropriate data and binding
it to the business application. No “restore” to the
production storage system is required. This eliminates the
“Restore Window”.
§ Data can be maintained in multiple formats on disk; native
application format for instant recovery or a format
optimized for efficient, economical long-‐term retention.
§ Network utilization can be optimized with a purpose-‐built
protocol designed for efficient movement of data to and
from remote sites for disaster recovery or business
continuity.
§ Data can be seamlessly moved across sites, transparent to
the backup process, across disk media of any vendor,
physical or Cloud storage based.
Essentially a new data protection “controller” can be
delivered to address the backup requirements of the
emerging business and IT requirements.
Then came the 1990’s and 2000’s. Data exploded. The need
for larger storage and reliability led to the creation of
external storage devices and the need to share large pools of
storage, along with server virtualization, led to networked
storage. Internal drives were primarily being used to store
the Operating System images and all the business critical data
was moved to reliable, large external, networked storage
devices.
Rapid data growth drove down disk media cost, while
different price/performance/capacity disk media solutions
were created. Ingenious engineering resulted in
deduplication technology, fixing the artifact of the WeeFDI
schedule and eliminate redundant data on disks, significantly
reducing the disk footprint needed. Disks were now price-‐
competitive for use as backup media, replacing tapes. Ease of
handling and quicker access to data further added to the
benefits of using disks as backup media.
Businesses became global. Organizations required
information and IT to be available round the clock. It became
a 7x24X365 business world and who had the time for
“Downtime”?
Basically, every assumption that the backup software
was engineered for, changed. So, why are we still using
backup software?
Backup for the Flat, Virtualized, Cloud World
Fortunately, IT industry changes rapidly to meet dynamic
business requirements and customer demand. Changes to
business environment and advances in technology drove the
need to revisit data
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protection
mechanisms, starting
Backup Snapshot
BC/DR
Copy
VMware
Mgmt
Backup
with a review of the
design criteria;
§ Business needs IT to
be available
7X24x365
§ Server virtualization introduces unprecedented agility,
mobility and ease-‐of-‐use.
§ Data protection involves data moving from disk-‐to-‐disk
§ Disk storage systems have become commoditized
§ IT architectures are evolving from on-‐premises to hosted,
to hybrid to SaaS models.
§ Backup Software based data protection architecture is
incapable of effectively, efficiently and flexibly protect
valuable digital assets
These guidelines result in a new data protection mechanism
with the following characteristics;
So, where is the Backup software in this new
architecture? Backup software is dead.
Poof Backup Software, Presto Data
Management
Similar to Backup, disks are also being used by several other
data management applications that require a copy of data;
Snapshot copies, test and development copies, analytics, e-‐
discovery, compliance, etc. With disk becoming a common
media for Backup and all the other data management
applications, data within an organization can now be divided
into two types: Production Data and copies of Production
Data, which we call “Copy Data”.
The unification of media to
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store all Copy Data drives
one of the key paradigm
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shifts in data management: a
single unified way to manage
all copies of data, with the
least storage footprint and
VirtualData Pipeline (VDP)
network bandwidth; Virtual
Data Management.
Virtualization comes to Data Management
Actifio set about designing a data management solution for
disk based media and pioneered Virtual Data Management
(VDM). This technology virtualizes the management of
independent, duplicate copies of data into one platform,
eliminating redundancies and re-‐purposing unique data for
different data management applications.
The result is a single, application-‐centric, SLA-‐driven solution
to efficiently manage all Copy Data for multiple business
requirements: data protection, disaster recovery, business
continuity, e-‐discovery, test & development, analysis or
compliance, for virtual, physical or cloud IT infrastructure:
AnyITTM
§ Data can now be captured instantly and efficiently, and
stored on the backup disk media, without any format
transformation eliminating the “Backup Window”.
§ Since protected data is also on a disk, recovery can simply
© Actifio, Inc. All rights reserved. Actifio™ is a registered trademark of
Actifio Corporation. All other trademarks and service marks are
property of their respective owners.
2
storage resources into private, public or hybrid cloud storage
pools, users are able to further lower the storage cost by over
75% using commodity storage or leverage existing storage
devices.
At the heart of the Actifio technology is a Service Level
Agreement (SLA) driving the lifecycle of business application
data. An agent-‐less, AppSnapCopyTM technology captures
only the changed blocks of application data, resulting in near-‐
zero Recovery Point Objective (RPO). This technology results
in up to 80% reduction in the amount of data being copied,
due to the pipeline architecture. For a 10TB data set with 2%
daily change rate, figure below shows the
impact.
Data movement is performed by Heterogeneous
DedupAsyncTM technology, a purpose-‐designed network
protocol for efficient data movement, optimizing bandwidth
usage by only transferring unique data to the remote data
store. In addition to inherent global deduplication of data,
this protocol drives down network usage by up to 70%.
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AppSnapRestoreTM technology is used to recover
information by parsing the VDPFS object file system to
recover information in application format, at the point-‐in-‐
time of recovery. By directly mounting the recovered data to
a server, no data movement is necessary, resulting in near-‐
zero Recovery Time Objective (RTO). The figure below
compares the data restore process using backup software
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Near-Zero Backup Window*
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Virtual Data Pipeline File System (VDPFS), an Object file
system stores the delta-‐copy data objects in raw,
deduplicated and compressed formats, either locally and/or
on a remote site. The result is up to 95% reduction in the
storage footprint, comprising only of unique blocks of Copy
Data. Figure below represents the impact of data stored by
VDPFS.
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Restore Window
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Instant Restore
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The result is not only significantly reduced total data
footprint required to perform recovery, but also enable
business applications to instantly access data from any point
in time without using the Production Storage, Application
Server or Network resources.
Actifio solution deployment has no impact and requires no
change to any existing data management applications like
backup, snapshot or replication. Actifio has been deployed as
a single solution for all the data management requirements,
as well as a solution for one or more specific applications,
seamlessly co-‐existing with existing applications and
infrastructure.
self-‐describing objects comprising of application data with
temporal, causal and Service Level Agreement (SLA)
relationship associations, enabling intelligent data
management and re-‐use. Since data is captured at block level,
the resources required to deduplicate on fixed block
boundaries, are 6X less than the variable length
deduplication implementations used by the current
deduplication devices.
10X Business Impact
Virtual Data Management ushers in proven benefits of
virtualization: simplicity, Service-‐oriented management,
enhanced utilization and flexibility. Actifio users have been
able to drive down the Total Cost of Ownership (TCO) by up
to 90%, while radically simplifying multiple data
management operations.
By virtualizing vendor-‐independent physical or cloud-‐based
© Actifio, Inc. All rights reserved. Actifio™ is a registered trademark of
Actifio Corporation. All other trademarks and service marks are
property of their respective owners.
9*'
versus using AppSnapRestoreTM.
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Multiple data formats stored
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VirtualData Pipeline (VDP)
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Unlike the current deduplication devices, VDPFS implements
a unique, context-‐sensitive deduplication technology with
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3
Solutions for Service Providers
Virtual Data Management reduces costs by:
§ Reducing Copy Data footprint
§ Reducing unit cost of Copy Data storage
§ Reducing Network bandwidth for replication
§ Eliminating multiple point tool software licenses
§ Freeing up Production Data storage device from storing and
managing copies of data
§ Eliminating the overhead typically imposed by backup
software on Application Server CPU’s, Network and
Production Data storage devices.
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In addition to optimizing Copy Data management for
internal IT operations, Service Providers deploy Actifio
solutions to:
§ Deliver Disaster Recovery and Business Continuity
as a service. Optimized networked bandwidth, reduced
storage footprint, service-‐oriented management and
ease of use have driven Actifio solutions to be the choice
of service providers to delivers DR and BC services at
value pricing.
§ Deliver Easy-‐On-‐Ramp to Cloud service enabling
users to seamlessly migrate select applications to and
from a Service Provider cloud.
A paradigm Shift in Data Management
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By virtualizing the core primitives of data management
and leveraging the characteristics of Disk-‐to-‐Disk data
movement, Actifio not only delivers a single solution to
address multiple Copy Data management applications, but
changes a core IT function: Backup. The new architecture
eliminates backup software and all the complexity,
limitations and inflexibility associated with it. The figure
below summarizes the impact of Virtual Data Management
on backup, compared to other techniques.
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Solutions for IT organizations
§ Eliminate Backup and Restore Windows. With the rapid
growth in Production Data size, backup software tools are
unable to protect critical business information or recover
information in time, leaving businesses vulnerable to data
loss and low availability. Actifio AppSnapCopyTM and
AppSnapRestoreTM technologies are purpose-‐built to
instantly protect and recover large amounts of data,
eliminating the windows of vulnerability. Actifio eliminates
“backup agents”, freeing business application servers from
backup and restore operations. Integrated data
deduplication, compression and encrypted replication, drive
down the storage footprint, network utilization and eliminate
the software license costs for point tools.
§ Optimize Replication for Disaster Recovery and Business
Continuity. DeDup AsyncTM technology eliminates
movement of all duplicate data, driving down network
bandwidth utilization by 70%. In addition, the integrated
Storage Virtualization technology enables heterogeneous
data replication further driving down unit costs of storage by
75%.
§ Instant copies of data for test and development or
analytics applications. Actifio’s AppSnapRestoreTM
technology allows copies of data to be instantly available for
any application, with no additional storage requirement.
Clones of data can be made for I/O intensive applications.
AppSnapCopyTM technology allows users to efficiently
capture application-‐consistent data multiple times a day with
no impact on Hosts or storage systems.
© Actifio, Inc. All rights reserved. Actifio™ is a registered trademark of
Actifio Corporation. All other trademarks and service marks are
property of their respective owners.
4
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Actifio delivers an application-‐centric, SLA-‐driven solution
that decouples the management of data from storage,
network and server infrastructure. The result is a single,
radically simple solution at up to 90% lower TCO, to
efficiently manage all Copy Data for multiple business
requirements: data protection, disaster recovery, business
continuity, test & development, analysis or compliance, for
virtual, physical or cloud IT infrastructure: AnyITTM
For more information on how to manage data simply,
please visit http://www.actifio.com




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