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azure-sql/database/service-tier-hyperscale-frequently-asked-questions-faq.md

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author: dimitri-furman
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ms.author: dfurman
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ms.reviewer:
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ms.date: 03/03/2020
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ms.date: 02/03/2021
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---
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# Azure SQL Database Hyperscale FAQ
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[!INCLUDE[appliesto-sqldb](../includes/appliesto-sqldb.md)]
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### What is the smallest database size that Hyperscale supports or starts with
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40 GB. A Hyperscale database is created with a starting size of 10 GB. Then, it starts growing by 10 GB every 10 minutes, until it reaches the size of 40 GB. Each of these 10 GB chucks is allocated in a different page server in order to provide more IOPS and higher I/O parallelism. Because of this optimization, even if you choose initial database size smaller than 40 GB, the database will grow to at least 40 GB automatically.
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40 GB. A Hyperscale database is created with a starting size of 10 GB. Then, it starts growing by 10 GB every 10 minutes, until it reaches the size of 40 GB. Each of these 10 GB chunks is allocated in a different page server in order to provide more IOPS and higher I/O parallelism. Because of this optimization, even if you choose initial database size smaller than 40 GB, the database will grow to at least 40 GB automatically.
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### In what increments does my database size grow
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You can have a client application read data from Azure Storage and load data load into a Hyperscale database (just like you can with any other database in Azure SQL Database). Polybase is currently not supported in Azure SQL Database. As an alternative to provide fast load, you can use [Azure Data Factory](../../data-factory/index.yml), or use a Spark job in [Azure Databricks](/azure/azure-databricks/) with the [Spark connector for SQL](spark-connector.md). The Spark connector to SQL supports bulk insert.
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It is also possible to bulk read data from Azure Blob store using BULK INSERT or OPENROWSET: [Examples of Bulk Access to Data in Azure Blob Storage](/sql/relational-databases/import-export/examples-of-bulk-access-to-data-in-azure-blob-storage?view=sql-server-2017#accessing-data-in-a-csv-file-referencing-an-azure-blob-storage-location).
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It is also possible to bulk read data from Azure Blob store using BULK INSERT or OPENROWSET: [Examples of Bulk Access to Data in Azure Blob Storage](/sql/relational-databases/import-export/examples-of-bulk-access-to-data-in-azure-blob-storage#accessing-data-in-a-csv-file-referencing-an-azure-blob-storage-location).
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Simple recovery or bulk logging model is not supported in Hyperscale. Full recovery model is required to provide high availability and point-in-time recovery. However, Hyperscale log architecture provides better data ingest rate compared to other Azure SQL Database service tiers.
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azure-sql/managed-instance/failover-group-add-instance-tutorial.md

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> [!NOTE]
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> - When going through this tutorial, ensure you are configuring your resources with the [prerequisites for setting up failover groups for SQL Managed Instance](../database/auto-failover-group-overview.md#enabling-geo-replication-between-managed-instances-and-their-vnets).
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> - Creating a managed instance can take a significant amount of time. As a result, this tutorial could take several hours to complete. For more information on provisioning times, see [SQL Managed Instance management operations](sql-managed-instance-paas-overview.md#management-operations).
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> - Managed instances participating in a failover group require either [Azure ExpressRoute](../../expressroute/expressroute-howto-circuit-portal-resource-manager.md) or two connected VPN gateways. Global VNet Peering is not supported. This tutorial provides steps for creating and connecting the VPN gateways. Skip these steps if you already have ExpressRoute configured.
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> - Managed instances participating in a failover group require [Azure ExpressRoute](../../expressroute/expressroute-howto-circuit-portal-resource-manager.md), global VNet peering, or two connected VPN gateways. This tutorial provides steps for creating and connecting the VPN gateways. Skip these steps if you already have ExpressRoute configured.
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## Prerequisites

azure-sql/managed-instance/point-in-time-restore.md

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$deletedDatabase = Get-AzSqlDeletedInstanceDatabaseBackup -ResourceGroupName $resourceGroupName `
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-InstanceName $managedInstanceName -DatabaseName $deletedDatabaseName
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Restore-AzSqlinstanceDatabase -Name $deletedDatabase.Name `
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Restore-AzSqlinstanceDatabase -FromPointInTimeBackup -Name $deletedDatabase.Name `
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-InstanceName $deletedDatabase.ManagedInstanceName `
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-ResourceGroupName $deletedDatabase.ResourceGroupName `
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-DeletionDate $deletedDatabase.DeletionDate `
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$targetResourceGroupName = "<Resource group of target SQL Managed Instance>"
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$targetInstanceName = "<Target SQL Managed Instance name>"
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Restore-AzSqlinstanceDatabase -Name $deletedDatabase.Name `
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Restore-AzSqlinstanceDatabase -FromPointInTimeBackup -Name $deletedDatabase.Name `
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-InstanceName $deletedDatabase.ManagedInstanceName `
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-ResourceGroupName $deletedDatabase.ResourceGroupName `
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-DeletionDate $deletedDatabase.DeletionDate `
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## Next steps
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Learn about [automated backups](../database/automated-backups-overview.md).
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Learn about [automated backups](../database/automated-backups-overview.md).

azure-sql/managed-instance/transact-sql-tsql-differences-sql-server.md

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- `remote access`
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- `remote data archive`
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- `remote proc trans`
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- `scan for startup procs`
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- `sp_execute_external_scripts` isn't supported. See [sp_execute_external_scripts](/sql/relational-databases/system-stored-procedures/sp-execute-external-script-transact-sql#examples).
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- `xp_cmdshell` isn't supported. See [xp_cmdshell](/sql/relational-databases/system-stored-procedures/xp-cmdshell-transact-sql).
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- `Extended stored procedures` aren't supported, which includes `sp_addextendedproc` and `sp_dropextendedproc`. See [Extended stored procedures](/sql/relational-databases/system-stored-procedures/general-extended-stored-procedures-transact-sql).

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