1.

Explain DB Mirroring operating modes?

Answer»

ALWAYSON provided you with the feature of Readable replica. This is a long-awaited feature where you can UTILIZE your passive node.

Unlike cluster where your passive node CONSUME all your resources but you cannot utilize them before the primary node goes.

Benefits:

  • Offloads your read-only workload from primary to secondary.
  • Utilize your resources of secondary mode
  • Temporary statistics on readable secondary HELP in performance TUNING on secondary.
  • Offload T-log backups to secondary reduce backup load.


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