Hi all, Please teach me the access pattern of jetstress. I created 100GB X 4 DBs by using Jetstress. I/O by JetStress are all random ? or Does bias exist in I/O? or is there a possibility of the following access patterns? example) For simulation time 24hours The first 12 hours increase I/O to the entire half. and the next 12 hours increase I/O to half of the remainder. What access pattern does jetstress become? I want to test storage tiering by using jetstress.

Probably everything you need to know is here: http://technet.microsoft.com/en-us/library/ff706601.aspx Microsoft Exchange Server Jetstress 2010 http://gallery.technet.microsoft.com/Jetstress-Field-Guide-1602d64c Jetstress Field Guide

Hi, Thank you for your answer. I'm sorry, what page should I see?