Disaster recovery the new imperative

Interested in learning more disaster recovery?

Learn about the disaster recovery sessions offered at the upcoming Fall
2012 Data Center World Conference at:

www.datacenterworld.com.

This presentation was given during the Spring, 2012 Data Center World Conference and Expo.
Contents contained are owned by AFCOM and Data Center World and can only be reused with the
express permission of ACOM. Questions or for permission contact: jater@afcom.com.

© Copyright 2012 Power Assure, Inc. – ALL RIGHTS RESERVED

Disaster Recovery:
The New Imperative

By: Clemens Pfeiffer, CTO
March 2012

The Purpose of a Data Center

Provide IT equipment a healthy environment to
guarantee application service levels


Data Center Requirements

• Reliability

• Required levels of power & cooling

• Support for future growth

• Service level guarantees

• Tier Definition:
– 1: Non redundant
– 2: N+1, redundant components
– 3: 2N, active/passive
– 4: 2(N+1), fault tolerant

Today’s Typical Data Center Setup

• Tier 3 or Tier 4 Data Center
– Redundancy within the data center

• At least 2 redundant data centers
– Redundancy across data centers

• Hot/Hot or Hot/Cold application failover configuration
– Redundancy of the application

Data Center 1 Data Center 2
West Coast East Coast


Is This Sufficient?

Is It Efficient?

Disaster Areas

Physical Hardwar Running
damage e and out of
software power
failure


Disasters - People Can’t Get There

Natural Disasters
•Tsunami in Japan
•Earthquake in New York
•Hurricane on East Coast

Impact
•No power for a week
•No refueling for generators

Results
•Datacenter failure when backup
generation runs out


Out of Electricity - Out of Fuel

• In a 7 day electricity outage – delivery vehicles run out
of fuel

• Diesel generators run out of fuel, as no supply is
available


Demand Response / Rolling Blackouts

• Required power
reduction

• Temporary outages

• Limited hours for
generators

• It can happen
everywhere and at all
times

• Heat waves, snow,
hurricanes, water


Cooling failure

• ASHRAE Limit 80.6F

• Physical Server Limit 95F

• What about 102.5F and
more?
– Servers shut down
– Cabling problems
– Outages


Failover does not work

• Primary site down

• Secondary site not
coming up

• People take
actions

• Manual recovery

• Delays and service ABB Decathlon™
outages


The Key: Minimize the Application Risk

• Focus on application reliability NOT physical reliability

• Real-Time monitoring across facilities and IT

• Define Service Level requirements for applications

• Remove obsolete and unused equipment to reduce power

• Optimize cooling and facility infrastructure

• Consolidate and group applications by service level

• Virtualize / setup private clouds across sites

• Automate standard operating procedures

• Participate in ancillary services and demand response


Virtualization and Consolidation
Default Virtualization Fixed Reservation Shared Reservation
Provisioned as 1 VM per Physical With QoS, Individually Provisioned With QoS, Group Provisioned
(use max utilization as limit for low QoS apps) (use spare capacity for low QoS apps, shared buffer)

Total Resources: 14 Total Resources: 11-13, Savings: 7%-20% Total Resources: 7-8, Savings: 43%-50%

14

Tier 2
Low QoS

Tier 4
High QoS
0

Run LOW QoS Apps for Free!
Power Assure and PARC patents pending


Result: Hot/Cold Savings

reserve
capacity
with
dynamic
on/off
buffer

used

Power Savings: 72%
Peak Capacity: 1.6x

Result: Hot/Hot Savings

reserve
capacity
with
dynamic
on/off

buffer
used

Power Savings: 72%
Peak Capacity: 3.5x

Setup Emergency Procedures
Cooling Error:

Power Cap
Servers


Intelligent Power Distribution

Today – Automatic Transfer Switch Tomorrow – AC or DC Distribution Bus

Utility
Utility ATS Power
Generator UPS IT
Power
Generator

UPS Batteries Cooling
Cooling
IT Solar/Wind

Either / or configuration Synchronized configuration with
If Utility feed is off: variable input control
-- UPS holds IT load If Utility feed is off:
-- Cooling stops -- UPS holds load for IT
Cooling back as soon as -- Cooling can run off the batteries
generator comes on Co-generation capabilities
Generator maintenance requires Generator maintenance cycles usable
load bank or ATS flip Battery capacity usable for regulation


The Impact of an Outage for Data Centers
Today – Reactive:
•Tier 3/4 facility redundancy
•Hot/Hot or Hot/Cold setup
•Upon failure:
– Generator kicks in, offline from grid
– Shift to secondary data center
– Run double peak capacity 24x7

Tomorrow – Proactive:
•Integration into Utility Services for
preventive actions
– Leverage co-generation capabilities
– Integrate alternative energy sources
– Automated shift and shed across sites
– Tier applications by service level
– Application reliability over facility reliability
– Data centers get paid for upgrades by
participation in energy markets

Disaster recovery the new imperative

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