Hi Ron, > On Oct 27, 2023, at 21:02, Ron <ronljohnsonjr@xxxxxxxxx> wrote: >> b) why isn't it possible to check whether checksums are enabled or not? > > (This is my tiny test instance.) > > $ pg_controldata | grep checksum > Data page checksum version: 0 > > postgres=# show data_checksums; > data_checksums > ---------------- > off > (1 row) this helps a lot. Thanks very much. Now, there are only two other questions. Cheers Paul