Disaster Tolerance and Recovery in a Serviceguard Cluster

Understanding Types of Disaster Tolerant Clusters

Table 1-1

Comparison of Disaster Tolerant Cluster Solutions (Continued)

 

 

 

 

Attributes

Extended Distance

CLX

Continentalclusters

Cluster

(HP-UX only)

 

 

 

 

 

 

Data

Dark Fiber

Dark Fiber

WAN

Replication

 

Continuous Access over

LAN

Link

 

 

IP

 

 

 

Dark Fiber

 

 

 

 

 

Continuous Access over

(pre-integrated

 

 

ATM

solution)

 

 

 

Continuous Access

 

 

 

over IP

 

 

 

(pre-integrated

 

 

 

solution)

 

 

 

Continuous Access

 

 

 

over ATM

 

 

 

(pre-integrated

 

 

 

solution)

 

 

 

 

Cluster

Single or multiple IP

Single or multiple IP

Two configurations:

Network

subnet

subnet

Single IP subnet for

 

 

 

 

 

 

both clusters (LAN

 

 

 

connection between

 

 

 

clusters)

 

 

 

Two IP subnets – one

 

 

 

per cluster (WAN

 

 

 

connection between

 

 

 

clusters)

 

 

 

 

Chapter 1

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HP serviceguard t2808-90006 manual Wan