Makes the secondary of a geo-redundant storage account the new primary while keeping its DNS names. A planned failover preserves geo-redundancy, whereas after an unplanned one the account stays LRS until you set up geo-replication again.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Customer-managed account failover in context, with comparison tables and the common traps.
Terms in this definition
- GRS
Geo-redundant storage keeps six copies in total: three locally redundant in the primary region and three in the paired region. The secondary copy can be read only once a failover has happened.
- DNS
The system that turns names into addresses. In Azure, private endpoints depend on private DNS zones, which are queried through 168.63.129.16.
- LRS
Locally redundant storage, the lowest-cost redundancy option, keeps three copies of the data inside a single datacentre in the primary region.
- Set
Secret permission in Key Vault for writing secrets; some older material refers to it as Create.