How to patch SharePoint 2019 farms which are in HA mode

Ashraf Ali 1 Reputation point


We have 2 SharePoint farms (both SharePoint 2019), one is production farm and other is DR farm. Both farms have same web application names and their content databases are shared via SQL "Always On" Availability group.

We want to patch our farms with latest CU. Do we need to follow same procedure for CU update as we used to follow for single farm patching or do we need to take care of additional things in this case.

We have taken downtime widow for this process, so downtime is acceptable.

Currently both farms are at same CU level.


SharePoint Server
SharePoint Server
A family of Microsoft on-premises document management and storage systems.
2,273 questions
A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
10,071 questions
0 comments No comments
{count} votes

1 answer

Sort by: Most helpful
  1. Emily Du-MSFT 43,331 Reputation points Microsoft Vendor

    You just need to follow steps same as before to install CU on each server.

    1.Download the SharePoint Cumulative Updates.

    2.Backup SharePoint farm and configurations.

    3.Install the Cumulative Updates in the SharePoint farm.

    4.Run SharePoint Products Configuration Wizard.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.