Posted by ErmanArslansOracleBlog on Jul 30, 2021; 7:09pm URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/logminer-read-rate-downstream-DB-tp9823p10023.html
If you generate 45 GB archivelog per hour, and if you can read 24 GB per hour, then you need to do something...
Putting archivelogs into SSD drives may increase the Log Miner read performance, but 45 gb per hour should also be investigated.