RDS Read replica taken more Storage than Main DB


We using RDS Read replica For Production DB. RDS Read Replica taken more Storage than main DB .

Prod Storage : 81 GB

Read Replica: 1000GB Even now we are getting the recommendation to increase the storage even more . Why does it take more storage? How to reduce the storage size without affecting read replica. It also afflicted our prod DR process and cost wise.

confirm we promote the Read Replica DB to Main DB it take same amount of storage.

1 Answer

It is not clear why your read replica was scaled so much higher than the source. But you can look at the Free Storage metric and see that the read replica is consuming the same amount of storage on disk as the source. You can reclaim this space by deleting and recreating this read replica.

answered a year ago

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