Replication is the process of synchronizing data across multiple servers and it provides redundancy and increases data availability with multiple copies of data on different database servers.
Replication protects a a database from the loss of a single server. Replication also allows you to recover from hardware failure and server interruptions. With additional copies of the data, you can dedicate one to disaster recovery, reporting or backup.
Why Replication ?
To Keep your data safe
High (24*7) availability of data
Disaster recovery
No downtime for maintenance ( like backups, index rebuilds, upgrade)
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