Re: Need to find out which process is hitting hda

"Merlin Moncure" <mmoncure@gmail.com> writes:
> there are a few things that I can think of that can can cause postgres
> to cause i/o on a drive other than the data drive:
> * logging (eliminate this by moving logs temporarily)
> * swapping (swap is high and changing, other ways)
> * dumps, copy statement (check cron)
> * procedures, especially the external ones (perl, etc) that write to disk

> my seat-of-the-pants guess is that you are looking at swap.

vmstat would confirm or disprove that particular guess, since it tracks
swap I/O separately.

            regards, tom lane