Successfully migrate existing databases to Azure SQL Database. John Sterrett Principal Consultant

Transcription

1 Successfully migrate existing databases to Azure SQL Database John Sterrett Principal Consultant

2 Common Migration failures Plan Test Execute Manage

3 Free Reference Material Videos, Reference Links, Tips, and slide deck can be found at

4 Agenda Where Should My Data Go? How do I plan a successful migration? How to migrate my Data? How to leverage PaaS Benefits? What am I responsible for Post Migration?

5 5 About John johnsterrett.com procuresql.com linkedin.com/in/johnsterrett

6 Three reasons people are migrating?

7 Cost Comparison Qty Item Cost Total Cost Five Years Ten Years 2 PowerEdge R930 2xE v4 (16 cores) 54, $108, $21, $10, SQL 2016 Enterprise Cores (2 Core Pack) 14, $114, $22, $11, Support Power $222, $44, $22, PowerEdge R930 2xE v4 (16 cores) 54, $216, $43, $21, SQL 2016 Enterprise Cores (2 Core Pack) 14, $342, $68, $34, Support Power $559, $111, $55, Monthly Yearly Premium Elastic Database -edtu 250 1, $16, Support (Standard) $3, Power $0.00 $20, Premium Elastic Database - edtu , $100, Support (Professional Direct) 1, $12, $112, P11 Single Database 7, $84, Support (Professional Direct) 1, $12, $96,012.48

8 Security Enhancements Firewall Secure Connections Data In Flight Data At Rest Audit Threat Detection

9 Azure SQL Features Security Azure Data Sync Active Geo- Replicas Performance Insight Automated Tuning Adaptive Query Processing

10 Features Supported

11 Where Should My Data Go? Single Database (PaaS) Elastic Pool (PaaS) Managed Instance (PaaS) SQL VM (IaaS)

12 Pricing Models DTU [single database] edtu [elastic pool] vcore Hyperscale (Preview)

13 What is DTU? Image Source: Microsoft Docs

14 DTU vs vcore? Image Source: Microsoft Docs

15 vcore to DTU ratio Each 100 DTU in Standard tier requires at least 1 vcore in General Purpose tier Each 125 DTU in Premium tier requires at least 1 vcore in Business Critical tier

16 Pricing DTU vs vcore

17 What performance tier should we use? Dtucalculator.azurewebsites.net

18 DTU Calculator Results

19

20 Migrating Your Data To Azure SQL Database Schema + Data = Migration

21 Options to Move Your Data BACKPAC Transactional Replication Data Migration Service Restore Backup (Managed Instance)

22 Migrating to Azure SQL Database Assess DB (DMA) Prepare Fixes Implement Fixes Export Bacpac Import Bacpac

23 Migrate Schema with Data Migration Assistant

24 Select Tables to Move

25 Deploy with SSMS

26 Migrate with SQLPackage.exe

27 Easy Guide to Quickly Migrating Data Increase Tier Copy Data Reduce Tier

28 Migrating 60GB Database with S0

29 Overloading during Bulk Insert

30 Migrating a 60gb Database to P1

31 How do you manage Azure SQL Databases Today?

32 Biggest Database Management Mistake.. Create it and forget it

33 Manage Azure SQL DB Post Migration Business continuity Disaster Recovery Security and Compliance Sync Data Data Transfer Monitor and Improve Performance

34 High Availability with Failover Groups

35

36 Azure Database Maintenance Integrity Checks source Backups?? Restores (you control) Point in Time Deleted Database Geo Restore Index Maintenance Ola Hallengren Solution Works ;-) Statistics Maintenance GEO Replication / Failover Groups

37 Automating Maintenance Tasks Azure SQL Agent (Managed Instance Only) Linked Server PowerShell Azure Azure Automation Azure Elastic Jobs

38 Alerts

39 How do you monitor and improve performance?

40 DTU in Azure Portal Photo Credit

41 What the DTU. Did anyone understand what DTU Means? What is Power of database based on real-world measure?

42 What Really is DTU? Photo Credit

43 DTU Is.. DTU = DTU Percent * DTU Limit

44 DTU Percent (SELECT Max(v) FROM (VALUES (avg_cpu_percent), (avg_data_io_percent), (avg_log_write_percent)) AS value(v)) AS [avg_dtu_percent]

45 Calculating DTU ISNULL(dtu_limit,0) * (SELECT Max(v) FROM (VALUES (avg_cpu_percent), (avg_data_io_percent), (avg_log_write_percent)) AS value(v)) / AS DTU

46 SYS.DM_DB_RESOURCE_STATS User Database Captured Every Fifteen Seconds One Hour Historical Data Idle Database has Data

47 SYS.RESOURCE_STATS Master Database Every Five Minutes 14 Days Historical Data Idle databases may not have rows

48 DTU DMV Example

49 Azure Wait Stats

50 Azure SQL Database Waits Disk Usage Log Usage CPU IO_QUEUE_LIMIT LOG_RATE_GOVERNOR SOS_SCHEDULER_YIELD bit.ly/azuresqlwaits

51 Wait Statistics

52 CPU Throttling

53 I/O Throttling

54 Indexes in Azure SQL Database Automated Create Index Automated Drop Index Index Fragmentation Missing Indexes Index Usage Queries Missing Indexes

55 Automated Index Tuning

56 Azure SQL Database Tuning Tools

57 Azure SQL Database Performance Tools Query Store DMVs Extended Events Azure Portal Query Performance Insight Auto-Tuning Index

58 Query Store

59 Query Performance Insight

60 Automatic Tuning

61 Thank johnsterrett.com procuresql.com linkedin.com/in/johnsterrett Free Helpful Content