Microsoft Created Fake Employees To Test Exchange Server

Before Jetstress… before modern cloud load balancing… Microsoft had a strange little tool called LoadSim. In this video, we explore how Microsoft stress tested Exchange Server 4.0 and Exchange 5.5 during the 1990s using simulated “fake employees” generating huge amounts of corporate email traffic across a Windows NT network. We’ll look at: • The history of the Exchange scalability crisis • Why Microsoft created LoadSim internally • How enterprise hardware vendors validated Exchange servers • Simulating 200 Exchange users on Windows NT • Transaction logs and the Exchange Information Store • The bizarre fake emails hidden inside LoadSim • And why tools like Jetstress eventually replaced it This was a fascinating period in enterprise computing history where Microsoft was trying to solve problems of scale that many organisations had never faced before. TimeStamps 00:00 Intro 00:23 Why LoadSim was needed 01:19 About LoadSim 02:11 Topology 02:41 Directory Imports 03:04 User Initialisation 04:11 Exchange Administrator 04:39 SIM Parameters 06:12 Running SIM 08:24 Outlook Messages 10:00 EDB Growth 10:47 Logging 12:00 JetStress 12:39 Exchange Server 2007 Attributions Maxtor Atlas 10K V - 10000rpm - FDB by Klerrp -- https://freesound.org/s/182366/ -- License: Creative Commons 0