Application connectivity when upgrading to hyperscale

Vijay Kumar 2,016 Reputation points
2022-05-09T05:59:33.36+00:00

Hi Team,

Next week we are planning to upgrade one of our PROD Azure SQL DB (Size:3.2 TB) to Hyperscale.

  1. Upgrade to Hyperscale took around 2-3 hrs
  2. Create a secondary replica. (Primary West US and Secondary East US)

My doubt is Are we going to face any application connectivity issue1 & 2 (Like any application downtime or slow response)

Azure SQL Database
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  1. Alberto Morillo 32,796 Reputation points MVP
    2022-05-09T12:46:10.133+00:00

    1) At least you will only experience a short period of downtime, generally a few minutes, during the final cutover to the Hyperscale service tier.

    2) The replica keeps in sync with the primary via the transaction log service, and it may impact performance of write workloads on the primary. In case of a failover, during failover applications may experience minimal downtime due to active connections being dropped.

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