Cluster configuration options
BlueZone Access Server or HostFront Server version 5.3 can be configured in one of the scenarios mentioned below. The number of machines running the cluster services and emulation
services will essentially determine your choices:
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Single server: One cluster service and one emulation service, also referred to as server, usually both on one single machine.
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Cluster with one point of entry: One cluster service and multiple emulation services, also referred to as servers, on multiple machines.
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Cluster with multiple points of entry (no single point of failure): Multiple cluster services and multiple emulation services, also referred to as servers, on multiple machines.
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Notes
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1. |
HostFront does not include VT emulation. Only BlueZone Access Server includes VT access solution. |
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One emulation service (or one server) in the above context means one machine that is running one set of emulation services
(3270, 5250, and/or VT) resulting from one installation of either BlueZone Access Server or HostFront Server.
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The SQL database of the profile can be installed on one of the server machines or on a separate machine. It can also be installed
on the Enterprise Microsoft SQL single server or an SQL cluster.
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Host Access Manager can run on any machine that can access both the SQL database and the server machines in the cluster.
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There are no restrictions on the number of hosts. |
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All installations are made on the Windows Server machines (2000 or 2003) running a web server. |
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Session load balancing is automatically available when there is more than one emulation service, also referred to as server,
in your configuration.
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You can change the configuration from one scenario to another at any time. |
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The configuration is always transparent to your end user. |
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Both BlueZone Access Server and HostFront Server can coexist on the same machine. They operate and are managed separately.
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Each server machine can run HostFront for 5250, HostFront for 3270, BlueZone for 5250, BlueZone for 3270, and/or BlueZone
for VT concurrently.
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The configuration of BlueZone Access Server or HostFront Server and the Host Integration Server (HIS) software must be exactly
the same for all the servers in a given cluster.
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