July 2018
Intermediate to advanced
398 pages
7h 43m
English
Content preview from Professional Azure SQL Database Administration
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Disaster Recovery
Disaster recovery refers to having business continuity in case of a natural disaster or hacking that terminates an entire Azure region.
There are two ways to implement disaster recovery: Standard Geo-replication and Active Geo-replication.
Standard Geo-Replication
Standard Geo-replication asynchronously replicates committed transactions from an online primary to an offline secondary in a predefined Azure region:
Figure 8.4: Standard Geo-Replication
In standard geo-replication:
- Only one secondary is allowed in a DR paired region. Each region has a DR pair that can only host the secondary database. The list of DR paired regions is here: ...
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