What feature I can use in SQLServer 2014/SQLAzure to Horizontal scaling in case a single machine cannot handle the load

Hi all,
I need advise for 
What feature I can use in SQLServer 2014/SQLAzure to Horizontal scaling  in case a single machine cannot handle the load.
Please some body suggest.
I know some features :
1.AlwaysOn
2.Peer to Peer replication
Thanks in advance.

Hello,
Windows Azure SQL database is not on-premise SQL Server 2014.
SQL database not support Always on Availability Group and Replication. Scaling out in Azure SQL Database requires sharding, which horizontally partitions data across multiple databases. You should design custom sharding solutions by using application
code across multiple databases.
If you use Azure virtual machines (VMs) with SQL Server 2014, you can configure Alwayson Availability Groups. Please refer to the following article:High Availability and Disaster Recovery
for SQL Server in Azure Virtual Machines
Regards,
Fanny Liu
Fanny Liu
TechNet Community Support

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