Set cache policies for a computer group
Rules for directory cache expiration in
FactoryTalk
are managed system-wide in Security Policy Properties
.These policies determine:
- How long cache files remain available after the client computer is disconnected from the server.
- If a warning message appears before the directory cache expires.
Some circumstances require overriding the default system-wide settings and specifying directory cache timeout policies for a specific group of computers. If an individual computer has cache policies defined, those settings supersede the computer group setting. Example: The computer group "Laptops" has a policy that allows the computers in the group to be disconnected from the
FactoryTalk
network directory for 9 hours. However, a specific laptop named "Roving laptop" can have a policy that permits it to be disconnected from the FactoryTalk
network directory for 48 hours so that it can be transported between different locations. See Set cache policies for a computer for more information about how to set cache policies for a single computer.
Prerequisites
Setting cache policies for a computer group requires these permissions:
- Common > List Children
- Common > Read
- Common > Write
- Common > Configure Security
To set cache policies for a computer group
- InFactoryTalk Administration ConsoleExplorer, expandSystem>Computers and Groups>Computer Groups.
- Right-click the computer group, and then selectProperties.
- Select theDirectory Cachetab.IfOverride Directory Cache Expiration Policyis not selected (the default), the cache expiration of the computer group adopts the directory cache expiration policies.
- SelectOverride Directory Cache Expiration Policyto set the cache expiration policy for the computer group.
- Enter a number (0-9999) to specify the hours that the cache files remain available while the computer is disconnected from theFactoryTalknetwork directory server. If the time is set to 0, cache files of the computer never expire. This is the default setting.
- SelectOverride Directory Cache Warning Policyto set the cache warning policy for the computer group.
- Enter a number (0-9999) to display a warning message on the computer the specified number of hours before the cache files expire.
- SelectApplyto apply the changes and continue editing or selectOKto apply the changes and close the properties sheet.
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