Could OS virtualisation make SQL Replication (or other HA) redundant?

  • Hi all,

    I've heard a lot of claims recently about virtualisation / Cloud service, but ultimately, transactions must be committee to Point A and then replicated Point B, and as I see it no Virtualisation/ Cloud service can do that.

    Or am I wrong?

  • Well first off virtualization is not synonymous with cloud services although cloud services rely heavily on virtualization.

    And why would either of those matter, either a transaction is committed or it's not, why does it matter whether it's on a physical, virtual or cloud machine?

  • JaybeeSQL (12/20/2016)


    Hi all,

    I've heard a lot of claims recently about virtualisation / Cloud service, but ultimately, transactions must be committee to Point A and then replicated Point B, and as I see it no Virtualisation/ Cloud service can do that.

    Or am I wrong?

    You have most definately misunderstood what virtualisation is. It is nothing more than the ability to allow multiple OS installations to coexist on a common hardware platform.

    Never, ever think that it is a replacement for other technologies such as replication, mirroring, clustering as so on.

    And one more thing: Just because Cloud Services configure their virtualisation layer to be highly redundant / available the need for a good backup and disaster recovery plan is not reduced.

    PS: A discussion about transactional activity within the database is redundant in this post. It isn't affected by virtualisation.

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