©2017 ScaleArc. All Rights Reserved. 1 The Hidden Cost of Disaster Recovery The economics of active/active architectures
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©2017 ScaleArc. All Rights Reserved. 1
The Hidden Cost of Disaster RecoveryThe economics of active/active architectures
©2017 ScaleArc. All Rights Reserved. 2
A Changing World
• Disaster Recovery is no longer enough
• Today’s digital world demands Continuous Availability
©2017 ScaleArc. All Rights Reserved. 3
Continuous Availability depends on Active/Active Operations• Active/active ops have been challenging at the database tier–Technically:
How to have the app talk to two locations at once
–Economically:Increases expenses
©2017 ScaleArc. All Rights Reserved. 4
Myth: Active/Active Ops Cost 2x DR • Where does this myth come from?
AC
TIV
E
48 cores
PAS
SIV
E
“If I have to pay for database licenses on those other48 cores, I’m doubling my software costs.”
48 cores
©2017 ScaleArc. All Rights Reserved. 5
• With active/active ops, software costs do go up, but you can scale back hardware costs
• You deliver greater usable capacity and zero downtime
Here’s Where the Math is Wrong
DR Scenario
AC
TIV
E
48 cores
PAS
SIV
E
48 cores
Active/Active Scenario
AC
TIV
E
32 cores
AC
TIV
E
32 cores
©2017 ScaleArc. All Rights Reserved. 6
Let’s Look at the Math in More Detail
Quantity CostsHardware 96 cores $120,000SQL Server 48 cores $685,000TOTAL $805,000
Usable capacity 48 cores
Quantity CostsHardware 64 cores $54,000SQL Server 64 cores $912,000ScaleArc sw 8 active,
8 passive$79,200
ScaleArc hw 4x4 cores $18,000TOTAL $1,063,200
Usable capacity 64 cores
Model uses lists costs and includes hardware and software costs for
database load balancing to automate support for readable
secondary databases
AC
TIV
E
48 cores
PAS
SIV
E
48 cores
AC
TIV
E
32 cores
AC
TIV
E
32 cores
©2017 ScaleArc. All Rights Reserved. 7
Active/Active Ops – Worth the PremiumPay 20% More – Get 33% Greater Capacity + Zero Downtime
Quantity CostsHardware 96 cores $120,000SQL Server 48 cores $685,000TOTAL $805,000
Usable capacity 48 cores
Quantity CostsHardware 64 cores $54,000SQL Server 64 cores $912,000ScaleArc sw 8 active,
8 passive$79,200
ScaleArc hw 4x4 cores $18,000TOTAL $1,063,200
Usable capacity 64 cores
AC
TIV
E
48 cores
PAS
SIV
E
48 cores
AC
TIV
E
32 cores
AC
TIV
E
32 cores
For 20% more cost, you get:• 33% increased capacity• App-transparent failover• Zero downtime maintenance• Faster app performance• Opex savings• Improved asset utilization
©2017 ScaleArc. All Rights Reserved. 8
Read more about the hidden costs of “Dark DR”• Get the white paper
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