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articles/azure-netapp-files/cool-access-introduction.md

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@@ -22,10 +22,10 @@ The following diagram illustrates an application with a volume enabled for cool
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:::image type="content" source="./media/cool-access-introduction/cool-access-explainer.png" alt-text="Diagram of cool access tiering showing cool volumes being moved to the cool tier." lightbox="./media/cool-access-introduction/cool-access-explainer.png" border="false":::
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In the initial write, data blocks are assigned a "warm" temperature value (in the diagram, red data blocks) and exist on the "hot" tier. As the data resides on the volume, a temperature scan monitors the activity of each block. When a data block is inactive, the temperature scan decreases the value of the block until it has been inactive for the number of days specified in the cooling period. The cooling period can be between 2 and 183 days; it has a default value of 31 days. Once marked "cold," the tiering scan collects blocks and packages them into 4-MB objects, which are moved to Azure storage fully transparently. To the application and users, those cool blocks still appear online. Tiered data appears to be online and continues to be available to users and applications by transparent and automated retrieval from the cool tier.
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In the initial write, data blocks are assigned a "warm" temperature value (in the diagram, red data blocks) and exist on the "hot" tier. As the data resides on the volume, a temperature scan monitors the activity of each block. When a data block is inactive, the temperature scan decreases the value of the block until it has been inactive for the number of days specified in the coolness period. The coolness period can be between 2 and 183 days; it has a default value of 31 days. Once marked "cold," the tiering scan collects blocks and packages them into 4-MB objects, which are moved to Azure storage fully transparently. To the application and users, those cool blocks still appear online. Tiered data appears to be online and continues to be available to users and applications by transparent and automated retrieval from the cool tier.
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>[!NOTE]
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>When you enable cool access, data that has been cool for a period equal to or greater than the coolness period moves to the cool tier.
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>When you enable cool access, data that satisfies the conditions set by the coolness period moves to the cool tier. For example, if the coolness period is set to 30 days, any data that has been cool for at least 30 days moves to the cool tier _when_ you enable cool access.
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By `Default` (unless cool access retrieval policy is configured otherwise), data blocks on the cool tier that are read randomly again become "warm" and are moved back to the hot tier. Once marked as _warm_, the data blocks are again subjected to the temperature scan. However, large sequential reads (such as index and antivirus scans) on inactive data in the cool tier don't "warm" the data nor do they trigger inactive data to be moved back to the hot tier.
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articles/azure-netapp-files/manage-cool-access.md

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* No guarantee is provided for any maximum latency for client workload for any of the service tiers.
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* Although cool access is available for the Standard, Premium, and Ultra service levels, how you're billed for using the feature differs from the hot tier service level charges. See the [Billing section](cool-access-introduction.md#billing) for details and examples.
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* You can convert an existing capacity pool into a cool-access capacity pool to create cool access volumes. However, once the capacity pool is enabled for cool access, you can't convert it back to a non-cool-access capacity pool.
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* When you enable cool access, data that satisfies the conditions set by the coolness period moves to the cool tier. For example, if the coolness period is set to 30 days, any data that has been cool for 30 days moves to the cool tier _when_ you enable cool access.
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* When you enable cool access, data that satisfies the conditions set by the coolness period moves to the cool tier. For example, if the coolness period is set to 30 days, any data that has been cool for at least 30 days moves to the cool tier _when_ you enable cool access.
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* A cool-access capacity pool can contain both volumes with cool access enabled and volumes with cool access disabled.
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* To prevent data retrieval from the cool tier to the hot tier during sequential read operations (for example, antivirus or other file scanning operations), set the cool access retrieval policy to "Default" or "Never." For more information, see [Enable cool access on a new volume](#enable-cool-access-on-a-new-volume).
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* After the capacity pool is configured with the option to support cool access volumes, the setting can't be disabled at the _capacity pool_ level. However, you can turn on or turn off the cool access setting at the volume level anytime. Turning off the cool access setting at the _volume_ level stops further tiering of data. 

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