Cost Performance ■ Current Solutions Admin overhead

Keep, keep, keep! Cut, cut, cut! ??? !#$^* Business owners, end-users, … Storage admins, budget owners, … DBA

Goals  Cold data always online  Significantly lower storage TCO  Access cold data with existing applications  Easier performance and index maintenance  Faster backup/restore  Automatically managed and protected cold data Tradeoffs  Moderate performance reduction for cold data access  Update and delete on cold data is an administrative function  Some functional limitations Cost Performance Admin overhead

DBA scripts and tools work as before; all controls still held in local SQL Server Business applications continue working without disruption Developers continue building or enhancing applications with existing tools and methods On-premises SQL Server Hot/online business data Cold/closed business data Trickle data move Transparent remote query processing

 Enabling Stretch Database  Data movement  Stretching a table  Querying a stretched table  Backup & restore

AzureOn-premises On- premises SQL Server instance On-premises application(s) DB in SAN/Local Storage Ord_Detail Storage Ord_detail _archive table Txn_detail Hot + cold rows Compute

Azure On- premises SQL Server instance On-premises application(s) DB in SAN/Local Storage Ord_Detail Storage Ord_detail _archive table Trickle data migration Ord_detail _archive table Txn_detail Txn_detail (cold rows only) Hot + cold rows in same table Compute Entire archive table moved Only cold rows moved On-premises

Azure On- premises SQL Server instance On-premises application(s) DB in SAN/Local Storage Ord_Detail Storage Ord_detail _archive table Txn_detail Txn_detail (cold rows only) Transparent remote data access Hot + cold rows in same table Compute Local data only queries Local + remote data queries Trickle data migration On-premises

Azure On- premises SQL Server instance On-premises application(s) DB in SAN/Local Storage Ord_detail Storage Ord_detail _archive table Txn_detail Txn_detail (cold rows only) Compute Regular backup & restore Table 2 Table 1 Table 1’ Shallow backup & restore Table 2 Table 1 Table 2 Table 1’ On-premises

Azure On- premises SQL Server instance On-premises application(s) DB in SAN/Local Storage Ord_detail Storage Shard 1 Ord_detail _archive table Txn_detail Txn_detail (cold rows only) Compute Storage Shard 2 Ord_detail _archive table Txn_detail (cold rows only) Transparent scaleout On-premises

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