On Tue, Nov 24, 2015 at 12:48 PM, Marcin Mańk <marcin.m...@gmail.com> wrote:

> if SSDs have 4kB/8kB sectors, and we'd make the Postgres page
> size equal to the SSD page size, do we still need full_page_writes?

If an OS write of the PostgreSQL page size has no chance of being
partially persisted (a/k/a torn), I don't think full page writes
are needed.  That seems likely to be true if pg page size matches
SSD sector size.

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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