Neil Johnson - a rock 'n roll nerd....

Mostly Exchange Server and Office 365, but probably some other stuff too...

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  • Blog Post: Jetstress Field Guide

    Last Updated : 21/06/2011 The field guide is released at major intervals on the Exchange Team Blog, however I have decided to keep dot release updates here to ensure that the very latest information is available to those that do a lot of Jetstress testing (yes, there are some of us that do a lot of stress...
  • Blog Post: Jetstress 2010 – Stress test problem

    Recently one of our partner has highlighted an issue in the current version of Jetstress that means the test may run in performance mode when in fact it should be running in stress mode. What's the difference between performance and stress mode? Put simply, performance mode validates the storage performance...
  • Blog Post: Microsoft Certified Master Exchange Server –2 years later…

    All the way back in May 2009 I had just completed my Exchange 2007 Microsoft Certified Master rotation in Redmond, on my return I decided that I would write up my experience… it was actually quite emotional re-reading this post, many of the people I went through this experience with are now good friends...
  • Blog Post: Jetstress 2010 and Background Database Maintenance

    Last week a colleague from the MCM Exchange 2010 community asked some questions about disabling Exchange Server 2010 Background Database Maintenance.  Essentially they wanted to know if they disabled  the checkbox for BDM, what would happen on the passive database copies? A response came back...
  • Blog Post: Analysing Exchange Server 2010 Jetstress BLG Files By Hand

    Quite often when I am working through Jetstress escalations I will ask to see the BLG files from the test. These files contain performance counter information that was logged during the test run and they show us a lot more about what is really going on than the data in the report HTML files. To keep...
  • Blog Post: Exchange 2010 - active and passive database IOPS

    I have been involved with a few escalations recently (I don't even work in support!), the cases have been mostly due to Jetstress tests failing – typically then the relationship between customer and storage vendor becomes more hostile and eventually someone points the finger at Jetstress or Exchange...