Finding what is accessing drive?

[Neil Dugan]

Hi 

I have a small computer with FC3 installed on a ext3 partition, being
used as a PostgreSQL database server.

I setup hdparm to turn off the hard-drive, but something is accessing
the hard-drive making it stay on.

Using 'top -i' it seems that kjournald seems to be accessing the hard-
drive every few minutes.  There is no man page for kjournald.

What is kjournald?
Any ideas on locating what program is accessing the hard-drive if it
isn't kjournald?

Regards Neil.