System Design Fundamentals

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Data Replication vs. Data Mirroring

Data replication and data mirroring are both methods used in managing and safeguarding data, particularly in the context of databases and storage systems. While they share similarities in creating copies of data, they serve different purposes and have distinct operational characteristics.

Data Replication

Definition

  • Data Replication involves copying data from one location to another. The replication can be synchronous or asynchronous.

Characteristics

  • Asynchronous/Synchronous: Data replication can be done in real-time (synchronous) or with some delay (asynchronous).

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Tan Chin Siang

Tan Chin Siang

· 2 years ago

Can we say that mirroring is a backup system?

Show 1 reply
T

thandra82

· a month ago

why not create a table for this content

  1. Real-Time Synchronization:
    • Replication: Can be either synchronous or asynchronous.
    • Mirroring: Typically synchronous.
  2. Purpose and Use:
    • Replication: Used for load balancing, data localization, and reporting.
    • Mirroring: Primarily for disaster recovery and high availability.
  3. Number of Copies:
    • Replication: Can create multiple copies of data in different locations.
    • Mirroring: Usually involves a single mirror copy.
  4. Performance Impact:
    • Replication: Can be designed to minimize performance impact.
    • Mirroring: Since it’s synchronous, it might have a more significant impact on performance.
  5. Flexibility:
    • Replication: More flexible in terms