Designing the Compaq ProLiant Clusters HA/F100 and HA/F200
2-27
Compaq Confidential – Need to Know Required
Writer:
Bryan Hicks
Project:
Compaq ProLiant Clusters HA/F100 and HA/F200 Administrator Guide
Comments:
Part Number:
380362-003
File Name:
c-ch2 Designing the Compaq ProLiant Clusters HAF100 and HAF200.doc
Last Saved On:
8/24/00 12:00 PM
The active data paths run from the active host bus adapters in the servers to the
active storage hub. If this path fails, the applications can seamlessly fail over
to the standby host bus adapter-to-storage hub data paths (Figure 2-15).
storage hub
or switch
RA4000/4100
storage hub
or switch
Server
Server
S
S
A
Active
Standby
A
Figure 2-15. Active hub-to-storage data path
The second active data path runs from the active hub or switch to the
RA4000/4100. If this path fails, the applications can seamlessly fail over to the
standby hub-to-RA4000/4100 data path.
The dual redundant loop feature of the Compaq ProLiant Cluster HA/F200
increases the level of availability over clusters that have only one path to the
shared storage. In addition, the second path in the HA/F200 provides for
improved performance through static load balancing. Static load balancing
considerations are discussed in the “Static Load Balancing” section of this
chapter.
Summary of Contents for ProLiant Clusters HA/F100
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