Data center design considerations

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Data Center Disaster Recovery

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Failure Scenarios
Disaster Could Mean Many Types of Failure
• Network failure • Device failure • Storage failure • Site failure

DC-2602 12652_04_2006_c2

© 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

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Network Failures
• ISP failure
Dual ISP connections Multiple ISP
Service Provider A

Internet

Service Provider B

• Connection failure within the network
EtherChannel® Multiple route paths

DC-2602 12652_04_2006_c2

© 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

20

Device Failures
• Routers, switches, FWs
HSRP VRRP
Service Provider A

Internet

Service Provider B

• Hosts
HA cluster LB server farm NIC teaming

DC-2602 12652_04_2006_c2

© 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

21

Storage Failures
• Disk arrays
RAID
Service Provider A

Internet

Service Provider B

• Disk controllers

DC-2602 12652_04_2006_c2

© 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

22

Site Failures
• Partial site failure
Application maintenance Application migration Application scheduled DR exercise
Service Provider A

Internet

Service Provider B

• Complete site failure
Disaster

DC-2602 12652_04_2006_c2

© 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

23

Agenda
• Introduction to Data Center—The Evolution • Data Center Disaster Recovery
Objectives Failure Scenarios Design Options

• Components of Disaster Recovery
Site Selection—Front End GSLB Server High Availability—Clustering Data Replication and Synchronization—San Extension

• Sample Design
DC-2602 12652_04_2006_c2 © 2006 Cisco Systems, Inc. All rights reserved.

Cisco Public

24

Cold Standby
• One or more data center with appropriately configured space equipped with pre-qualified environmental, electrical, and communication conditioning • Hardware and software

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