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Copy file name to clipboardExpand all lines: articles/azure-monitor/logs/restore.md
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# Restore logs in Azure Monitor
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The restore operation makes a specific time range of data in a table available in the hot cache for high-performance queries. This article describes how to restore data, query that data, and then dismiss the data when you're done.
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The restore operation makes a specific time range of data in a table available in the hot cache for high-performance queries. This article describes how to restore data, query that data, and then dismiss the data when you're done.
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## Permissions
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## What does restore do?
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When you restore data, you specify the source table that contains the data you want to query and the name of the new destination table to be created.
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The restore operation creates the restore table and allocates additional compute resources for querying the restored data using high-performance queries that support full KQL.
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The restore operation creates the restore table and allocates extra compute resources for querying the restored data using high-performance queries that support full KQL.
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The destination table provides a view of the underlying source data, but doesn't affect it in any way. The table has no retention setting, and you must explicitly [dismiss the restored data](#dismiss-restored-data) when you no longer need it.
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- Restore up to 60 TB.
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- Run up to two restore processes in a workspace concurrently.
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- Run only one active restore on a specific table at a given time. Executing a second restore on a table that already has an active restore will fail.
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- Run only one active restore on a specific table at a given time. Executing a second restore on a table that already has an active restore fails.
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- Perform up to four restores per table per week.
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## Pricing model
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The charge for restored logs is based on the volume of data you restore, and the duration for which the restore is active. Thus, the units of price are *per GB per day*. Data restores are billed on each UTC-day that the restore is active.
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- Charges are subject to a minimum restored data volume of 2 TB per restore. If you restore less data, you will be charged for the 2 TB minimum each day until the [restore is dismissed](#dismiss-restored-data).
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- On the first and last days that the restore is active, you are only billed for the part of the day the restore was active.
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- On the first and last days that the restore is active, you're only billed for the part of the day the restore was active.
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- The minimum charge will be for a 12-hour restore duration, even if the restore is active for less than 12-hours.
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- The minimum charge is for a 12-hour restore duration, even if the restore is active for less than 12-hours.
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- For more information on your data restore price, see [Azure Monitor pricing](https://azure.microsoft.com/pricing/details/monitor/) on the Logs tab.
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Here are some examples to illustrate data restore cost calculations:
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1. If your table holds 500 GB a day and you restore 10 days data from that table, your total restore size is 5 TB and you will be charged for this 5 TB of restored data each day until you [dismiss the restored data](#dismiss-restored-data). Your daily cost will be 5000 GB multiplied by your data restore price (see [Azure Monitor pricing](https://azure.microsoft.com/pricing/details/monitor/).)
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1. If your table holds 500 GB a day and you restore 10 days data from that table, your total restore size is 5 TB. You are charged for this 5 TB of restored data each day until you [dismiss the restored data](#dismiss-restored-data). Your daily cost is 5,000 GB multiplied by your data restore price (see [Azure Monitor pricing](https://azure.microsoft.com/pricing/details/monitor/).)
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1. If instead, only 700 GB of data is restored, each day that the restore is active will be billed for the 2 TB minimum restore level. Your daily cost will be 2000 GB multiplied by your data restore price.
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1. If instead, only 700 GB of data is restored, each day that the restore is active is billed for the 2 TB minimum restore level. Your daily cost is 2,000 GB multiplied by your data restore price.
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1. If a 5 TB data restore is only kept active for 1 hour, it will be billed for 12-hour minimum. The cost for this data restore will be 5000 GB multiplied by your data restore price multiplied by 0.5 days (the 12-hour minimum).
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1. If a 5 TB data restore is only kept active for 1 hour, it is billed for 12-hour minimum. The cost for this data restore is 5,000 GB multiplied by your data restore price multiplied by 0.5 days (the 12-hour minimum).
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1. If a 700 GB data restore is only kept active for 1 hour, it will be billed for 12-hour minimum. The cost for this data restore will be 2000 GB (the minimum billed restore size) multiplied by your data restore price multiplied by 0.5 days (the 12-hour minimum).
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1. If a 700 GB data restore is only kept active for 1 hour, it is billed for 12-hour minimum. The cost for this data restore is 2,000 GB (the minimum billed restore size) multiplied by your data restore price multiplied by 0.5 days (the 12-hour minimum).
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> [!NOTE]
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> There is no charge for querying restored logs since they are Analytics logs.
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