MIRRORING CERTIFICATE EXPIRED

Performance

Mirroring Certificate Expired is an SQL error that indicates that the certificate used by the mirroring endpoint has expired.

The error message related to this issue can also be that the certificate used by the mirroring endpoint can’t be found.

More details related to this issue can be found in our article SQL: MIRROR NOT CONNECTED.

Find out how you can save hours of work when investigating the root cause of this issue.
Symptoms

The connection between a primary SQL database and its mirror database has been lost.

Impact: High

Database mirroring in SQL Server allows to keep a copy or mirror a SQL Server database on a standby server.

Mirroring ensures that two separate copies of the data exist at all times, providing high availability and complete data redundancy.

When mirroring is disconnected this recovery solution won’t be available in the case of disaster.

Expected behavior

The mirror should remain connected and active.

1- Certificates are no longer valid.  Priority: High

As the certificates are no longer valid, new certificates need to be created with future expiry_dates. If no expiry_date is given while creating the certificates, the default is one year expiration of the certificates.

Problem identification:

Search for errors related to mirroring issues.

Hands-on approach
Get the answer in just seconds!
Hands-on approach
  1. Investigate the SQL Server Logs of the mirrored servers. The disadvantage of this manual check is that you will probably find out about this issue too late after it has started.
  2. Check for the exception description and if it mentions that the certificate which is related to mirroring has expired.
Get the answer in just seconds!

No need to search for an error message when Aimbetter monitors the server’s status 24/7. As soon as the certificate expires a notification is sent about this issue, enabling the immediate solving of this issue.

Recommended action :

There is one solution – creating new certificates for SQL Server Database Mirroring while cleaning old SQL Server Database Mirroring certificates. It’s recommended to follow up on this issue with a monitoring tool.

    Learn more how you can solve IT systems performance issues faster



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