What should the Oracle Redo Log block size be set to in order to prevent log entries from being misaligned by read-modify-write operations for an…

The Oracle Redo Log block size is recommended to be set to 8 kB. This is based on the best practices

for Oracle 19c Database, where it was found that increasing the size of the Oracle redo logs can

improve database performance12. However, it’s important to note that not every workload will

show significant performance increase when increasing the size of the redo logs. Customers should

evaluate the AWR to determine if the redo logs have an associated high number and duration of wait

times. If the redo logs show a possible bottleneck, then increasing the size of the redo logs could

improve performance2.