Related information
Sophos Email Security and Control site
2.3.8 Grouping Web Appliances
The Sophos Web Appliance is available in a variety of models, each capable of providing web
browsing security and control features for different numbers of end users. As indicated in the table
below, appliances differ in their processing capacity and memory.
Larger organizations and those with multiple locations can use multiple Sophos Web Appliances
grouped together by a common Sophos Management Appliance to provide web security and
control for their various locales and a large number of end users. Management appliances centralize
control of policy and configuration data and consolidate reports. In order to group two or more
appliances together, you must purchase a Sophos Management Appliance.
Web Appliances and Management Appliances can also be purchased as virtual machines that
run on VMware.Their capacity depends on how much CPU, memory, and disk space you allocate.
For more information, see “Virtual Appliances” in the product documentation.
For detailed instructions on joining and disconnecting appliances, see “Central Management” in
the System section of the product documentation.
Memory (RAM)ProcessorsModel
2 GBdual-core, light-capacityWS100
2 GBdual-core, medium-capacityWS500
4 GBdual-core, high-capacityWS1000
8 GBquad-core, high-capacityWS1100
8 GBquad-core, high-capacitySM2000
8 GBquad-core, high-capacitySM5000
16 GBquad-core, high-capacityWS5000
Note: The number of end users that an appliance can handle is determined by the frequency at
which your organization’s users browse the web throughout the day and the volume and nature
of the files that they download and access.The number of users that a grouped deployment
supports depends on the number of joined appliances.
Scaling and Deployment
Your organization can either grow to require more than one appliance, or—if your organization
is a new Sophos appliance user that is a large, multi-site organization—you can begin by using
multiple, grouped appliances. In a grouped Web Appliance deployment, configuration and policy
data is distributed from the Management Appliance. If you have an existing standalone appliance,
Sophos Web Appliance | Getting Started | 39
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