MSSQL Monitor shows (100%) Logfile Used % for a mirrored database

MSSQL Monitor shows (100%) Logfile Used % for a mirrored database

We have a sql database server with a couple of databases. 1 of these databases is a mirrored database.

When we monitor the mirrored database the "Logfile Used %" monitor shows a 100% full logfile on the failover partner.

Is this 'by design' or is there something I can adjust in the settings?

 

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