Fujitsu SPARC Enterprise M5000 Посібник з експлуатації - Сторінка 18

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Note – Once you have used headroom to activate a COD resource, you are

contractually obligated to purchase a COD permits for it.

By default, COD resources arrive with headroom disabled. You can use the setcod

command to establish it. However, if you already have COD permits for all your

COD resources, configuring headroom has no effect. In that case, you need to install

additional COD boards to retain your headroom capacity. You can also reduce or

disable headroom at any time.

While headroom is in use, warning messages appear on the console every four

hours. Once you either deactivate the hot-spared COD board or purchase COD

Hardware Activation Options for the COD CPUs in use and enter the keys into the

COD database, the warning messages stop and headroom is automatically reduced.

Violations

A violation occurs if more COD resources are in use than authorized on the server.

These events can cause a violation:

The COD database is lost or corrupted while the system is running. This state is

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detected on the subsequent XSCF reset. To cancel the violation, use the

addcodactivation(8) command to reenter into the COD database the keys you

received with your COD Hardware Activation Option purchases.

You execute the command deletecodactivation -f, causing deletion of a

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COD key in the COD database while the server is using the associated COD

permit. This could be a valid action in certain cases. For example, you might want

to delete unwanted COD permits, but delay shutting down the domain.

You disable headroom while the server is still using COD resources.

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Once the system detects a violation, the Service Processor posts a notice on the

server console and ensures that no additional COD resources are brought online

until the violation is corrected. In the meantime, it will not shut down domains or

COD resources.

The available commands vary depending on the firmware version.

SPARC Enterprise Mx000 Servers Capacity on Demand (COD) User's Guide • January 2012