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Keep Data at a Distance
Disaster Recovery for the "New Realities”
Presented by:
Damian Walch, CISA, CISSP, MBCI
T-Systems, Inc.
www.t-systemsus.com
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“Internalization”
“Although the hot site market is
‘inelastic’ there is a rapidly increasing
availability of internal hot site solutions
for certain types of customers depending
on their size, their needs and the
computer equipment that they use.”
U.S. District Court Judge Ellen Huvelle, describing the hot site market during Sungard Data Systems’
bid to acquire Comdisco Availability Services
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Alternate Site Strategies
What is your main alternate site strategy?
Internal, 31.90%
Hot-Site Vendor, 49.14%
Reciprocal,
6.90%
None, 8.62%
Mobile Hot-Site,
3.45%
Are companies really
moving to internal
strategies?
Does the internal
strategy work?
Is there a specific
industry that does it
more than another?
DRJ SurveyMay, 2002 – 2,204 respondents
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Agenda
Reasons for the Trend
Considerations
Cost-Benefit Approach
Typical Pitfalls
Examples and Approaches
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Why Only 20% of G2000?
What are your recovery time objectives?
24 hours or LESS!
How quickly can we recover our MOST critical systems?
72 hours or MORE!
Collaboration
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Top 5 Reasons for Trend
5. Can’t Keep Up with Our Technology!
4. We’re Too Complex and Interdependent
3. You’re Going to Charge How Much for Technical Support and Floor Space?
2. No Control (all approaches have pitfalls)• First come, first serve
• Guaranteed access
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#1 Reason for Internal
Recovery Time Objectives are shrinking…
…and there is enabling technology that
assists us in achieving recovery times!
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Types of Technology Solutions
Enterprise Storage Solutions• SRDF
• GDPS, XRC, PPRC
• HXRC
Remote Journaling
Standby Operating System
Standby Database
DatabaseShadowing
Replication
Location 1
Symmetrix
SBOSOracle Standby Data Base
Oracle Log Apply
SymmetrixSRDF Links - T1 capacity
Synchronous Mode Enabled BCV’s
SAP R/3Oracle DBMS
Location 2
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#1 Reason Nobody Thinks Of
Companies won’t declare
disasters for almost
100% of the most
common causes of
interruptions!
They’re ONLY used for
natural disaster and
catastrophic events!
Most Common Causes of Busines
Interruption
Pow
er
Outa
ges
Hard
ware
Pro
ble
ms
Tele
com
munic
ati
ons
Failure
s
Soft
ware
Pro
ble
ms
0%
20%
40%
60%
80%
Causes
Perc
en
tag
e o
f R
esp
on
den
ts
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Considerations
Asset protection and replacements
Infrastructure and data protection
Operational recovery
Process/Application: internal
Process/Application continuation: externalContinuity
Recovery
Protection
Business continuity strategies MUST address all aspects of IT infrastructure, from basic asset protection and replacement to ensuring application continuity for internal operations and third parties.
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Considerations
Asset protection and replacements
Infrastructure and data protection
Operational recovery
Process/Application: internal
Process/Application continuation: externalLoad-BalancingFail-OverReplicationMirroring
HOT SITE SOLUTIONS
Hot Site Solutions DO have a place, but DO NOT apply them to the wrong business problem (e.g. recovery objective).
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Considerations
Determine what recovery of full compliment
would cost with a commercial hot-site provider.
Do they have all the equipment in one spot?
What is the most important thing for commercial
hot site providers?
• People
• Test Time - Do you ever get it when you want it?
• Floor Space, how much does it cost?
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Cross-Tab Label
250%
150%
0/0
Does your company recover “internally” or are you considering an internal recovery strategy?
1.Yes
2.No
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When is Internal Obvious? Do you have two or more data
centers?
Are they within 300 miles of each other?
Do you have space available (growth projections)?
Do at least two of your applications require recovery in less than 12 hours?
Do you have a robust wide-area network?
Do you have significant excess capacity for testing and development of applications?
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How Close is TOO Close?How many miles is your alternate data center from your main data
center?
0-50, 45%
50-100, 31.71%
100-250,
13.41%
250+, 9.76%
Different power grid
Network and carrier
diversity
Can you get your staff
there?
DRJ SurveyJanuary, 2002 – 874 respondents
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Positives and Negatives
Dedicated Shared
No Pre-Determined Exit ~ 6 week recovery
Easier to Test Scheduling Tests
Internal Resources Contact, Follow-Up
Positives Negatives
Obvious plus and minus to a vendor solution.
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Compare the Costs
ITEM COST ANNUALLYSubscription Processors (2) N4000 5,200$ 62,400$ (1) K580 1,700$ 20,400$ (8) Pentium V (dual) 1,600$ 19,200$ Disk Storage 400$ 4,800$ Tape Storage ($50/dr.) 200$ 2,400$ Floor Space 4,000$ 48,000$ Test Time 8,000$ 16,000$
Network 900$ 10,800$
Recovery Staff Coordinators 10,000$ 120,000$ Testing Time 3,000$ 36,000$
Extra Cabinet @ Hot Site 500$ 6,000$
Extra Test Time 600$ 7,200$
Workarea Recovery 450$ 5,400$ 36,550$ 358,600$
ITEM COST ANNUALLYSubscription Processors (2) N4000 4,417$ 53,000$ (1) K580 1,417$ 17,000$ (8) Pentium V (dual) 6,667$ 80,000$ Disk Storage 1,167$ 14,000$ Tape Storage 200$ 2,400$ Floor Space 8,000$ 96,000$ Test Time 1,000$ 2,000$
Network 1,250$ 15,000$
Recovery Staff Coordinators 20,000$ 240,000$ Testing Time 3,000$ 36,000$
Extra Cabinet @ Hot Site - -
Extra Test Time - -
Rental Equipment/Mobile 250$ 3,000$ 47,367$ 558,400$
Hot-
Sit
e S
olu
tion
Dedicated Solution
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Compare the Costs
Must pay for perceived “low-
value” items like cabinets
and floor space.
Extra test-time costs money
and is difficult to schedule.
Acquired new technology and reallocated servers (from test & development).
Having more flexibility for testing SHOULD increase the ease and # of tests.
Increase in network is required.
Work area Recovery is still required; however, other offices could be leveraged.
Hot-Site Solution Dedicated Solution
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Typical Pitfalls
All or nothing analysis• Don’t consider evolving the solution
Forget about the business functions
Change management
No Testing
Using it forProduction/LoadBalancing
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Typical PitfallsDon’t include all components of information flow
• Login and authentication
• Application servers
• “Bolt-on” servers
You MUST do the marketing!
TECHNOLOGYBUSINESS
Database Server
Application Server
Web Servers Firewall
Network
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Debunking Myths
Pulling attention away from “core competencies”.
Why would you want to create “business continuity experts”?
Pace of change in IT – can’t refresh!
You need multiple copies of data.
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Reasonable Potential Strategies
Mirroringcritical data
DirectoryServices
VaultingBackups
eMailRecovery
Allow the strategies to evolve, it DOES NOT have to be all or nothing. Review criticality and then
implement the appropriate solution!
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Conclusion
It does make sense sometimes!
Don’t be emotional, but logical about decision.
People, procedures, data and network should be
the same for either method.
Evolution – implement solutions slowly while still
covered by hot site.
Use the resources available to you.