Bruce Momjian <bruce@xxxxxxxxxx> wrote: > I assume we send a full 8k to the controller, and a failure during > that write is not registered as a write. On what do you base that assumption? I assume that we send a full 8K to the OS cache, and the file system writes disk sectors according to its own algorithm. With either platters or BBU cache, the data is persisted on fsync; why do you see a risk with one but not the other? -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
