Designing the Compaq ProLiant Clusters HA/F100 and HA/F200
2-35
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
Static Load Balancing
Static load balancing helps to attain enhanced performance from the cluster by
balancing the system’s workload. With cluster configurations, applications and
data can be shared by all components so that no one component is working at
its maximum capability.
There are two means of static load balancing. One way balances a system’s
workload across the cluster. The other balances a server’s workload across
multiple data paths. The dual redundant loop of the Compaq ProLiant
Cluster HA/F200 and an added RA4000/4100 storage system spread a
system’s applications and data across the data paths through an active/active
host bus adapter configuration. This configuration can increase the
functionality of the cluster.
IMPORTANT:
Disk load balancing cannot be done when using a single RA4000/4100 in a
Compaq ProLiant Cluster HA/F200. Add another RA4000/4100 to your HA/F200
configuration for host bus adapters in a single server to be active/active.
Figure 2-18 shows a Compaq ProLiant Cluster HA/F200 configuration with
only one RA4000/4100. Because there is only one RA4000/4100, the host bus
adapters are in active/standby HBA mode, which means that they do not have
load-balancing capability.
RA4000/4100
Server
Server
A
S
S
A
storage hub
or switch
storage hub
or switch
storage hub
or switch
storage hub
or switch
S
A
Figure 2-18. Compaq ProLiant Cluster HA/F200 with one RA4000/4100
Summary of Contents for ProLiant Clusters HA/F100
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