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Professional Azure SQL Managed Database Administration

You're reading from   Professional Azure SQL Managed Database Administration Efficiently manage and modernize data in the cloud using Azure SQL

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781801076524
Length 724 pages
Edition 3rd Edition
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Authors (2):
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Ahmad Osama Ahmad Osama
Author Profile Icon Ahmad Osama
Ahmad Osama
Shashikant Shakya Shashikant Shakya
Author Profile Icon Shashikant Shakya
Shashikant Shakya
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Table of Contents (14) Chapters Close

Preface 1. Introduction to Azure SQL managed databases 2. Service tiers FREE CHAPTER 3. Migration 4. Backups 5. Restoration 6. Security 7. Scalability 8. Elastic and instance pools 9. High availability and disaster recovery 10. Monitoring and tuning 11. Database features 12. App modernization Index

Automatic backups

Microsoft provides automated backups for Azure SQL Database and Azure SQL Managed Instance databases. Automatic backups consist of full, differential, and log backups. The first automatic full backup is performed immediately after the database is provisioned. Differential backups are scheduled to occur every 12-24 hours, and transaction log backups are scheduled for every 5-10 minutes. The frequency of transaction log backups is based on the compute size and the amount of database activity. A full backup is scheduled for once a week:

Automatic backup cycle

Figure 4.1: Automatic backups

Note

Differential and transaction log backups can run in parallel.

Backup storage

Azure SQL Database and SQL Managed Instance keep database backups in geo-redundant storage blobs by default, which are replicated to a paired region. This helps to recover the database in a different region if there is a regional outage in the primary region. You can choose between locally...

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