We have 2 servers that used to implement mirroring.
In both access even though the mirroring was removed conventionally there appears to be a number of processes related to the mirroring that seem to persist.
Notably the BROKER_TASK continues to be seen as a significant wait type when on similar systems which never had mirroring it is not seen at all.
I have tried to help myself.
On a test system I deleted broker related items and did remove the wait type and did not dame the server.
However I was not comfortable or confident and was perplexed thinking that removing the mirroring should have put the system back to the sate it was in before mirroring was implemented.
I am left feeling that the only way back to the pre-mirroring sate is to reinstall - tell me I am wrong, please.