Compaq ProLiant Clusters HA/F100, Administrator'S Manual

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2-4 Compaq ProLiant Clusters HA/F100 and HA/F200 Administrator Guide
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
Example 1: File & Print/File & Print
An example business scenario (Figure 2-1) involves two file and print servers.
The Human Resources (HR) department uses one server, and the Marketing
department uses the other. Both servers actively run their own file shares and
print spoolers while the cluster is in its normal state (an active/active design).
If the HR server encounters a failure, it fails over its file and print services to
the Marketing server. HR clients experience a slight disruption of service
while the file shares and print spooler fail over to their secondary server. Any
jobs that were in the print spooler before the failure event will now print from
the Marketing server.
File and Print
Human Resources
Capacity
Marketing
File and Print
Marketing
Capacity
Human Resources
Shared Storage
(Human Resources) (Marketing)
Figure 2-1. Active/active example 1
When failover is complete, all of the HR clients have full access to their file
shares and print spooler. Marketing clients do not experience any disruption of
service. All clients may experience slowed performance while the cluster runs
in a degraded state.