• JeremyK's [MSFT] WebLog

    Store Background Processes Part I - IS Maintenance

    • 24 Comments
    Overview IS Maintenance is the term applied to a series of operations performed by the Information Store to ensure logical consistency in the databases. Generally speaking the operations ensure items no longer needed by the system are removed from...
  • JeremyK's [MSFT] WebLog

    Chicken and the Egg... (aka. Read vs. Writing code)

    • 18 Comments
    So I have been asked to deliver training for a group of people on how to “read” source code. I guess I should frame this request a bit. With very large product such as Exchange there are millions of lines of code and no one knows everything...
  • JeremyK's [MSFT] WebLog

    Sherman Set the Way-Back machine to 1981

    • 17 Comments
    What was your first computer or experience with programming..? Well for me at the strapping young age of 7, my father brought home a Timex/Sinclair 1000. With a wopping 16k RAM and a 3.25mhz processor I was set on a path that lead me to where I am...
  • JeremyK's [MSFT] WebLog

    Don't believe everything the debugger is telling you!!! (aka Rootkit)

    • 16 Comments
    <sigh> So this issue was incredibly interesting, but you know at the end it just makes you mad. This past week a customer was having a very clear cut, reproduciable issue: When attempting to attach an item to a message via OWA, the Information...
  • JeremyK's [MSFT] WebLog

    Large Messages Affect Server Performance

    • 15 Comments
    I recent months we have seen issues where users (knowingly or unknowingly) send messages with LARGE attachments (500+mb.) Unfortunately this has huge impact on the server's performance, typically causing message queues to backup and general client sluggishness...
  • JeremyK's [MSFT] WebLog

    Determine the True amount of WhiteSpace in an Exchange Database

    • 11 Comments
    So we come across this from time to time so I thought it would be interesting to talk about… besides I needed something to show that I still cared about my blog. So the question is… “If I add up all the space used by mailboxes...
  • JeremyK's [MSFT] WebLog

    Bridging the gaps in Software Engineering

    • 11 Comments
    After reading Steve’s analogy on software development vs. building bridges , I figured it would be easier to convey some of my own thoughts in a post vs. comments. Being raised around engineering and architectural practices and now working in the software...
  • JeremyK's [MSFT] WebLog

    A critical junction in support issues: Root Cause VS. Relief

    • 10 Comments
    In the lifetime of a case, particularly one of high impact, a point is reached where a decision is necessary regarding the direction of the case. This decision impacts how the situation is approached going forward. The decision that must be made is: ...
  • JeremyK's [MSFT] WebLog

    Making Heads and Tails of Roles in PSS

    • 6 Comments
    Ever wondered what are all the different roles are in Exchange PSS support experience? Well maybe this might help… below is a brief explanation of each of the different roles that you may encounter when engaging PSS. Technical Router This...
  • JeremyK's [MSFT] WebLog

    Teaching the Skill of Reading Code

    • 4 Comments
    One would think my last post related to this topic was a Oxidizing Agent in a Redux Reaction (yep, I started out as a pure science major) given the response by Larry and Eric . Hey, but thats a good thing... it gets people thinking. So a few sessions...
  • JeremyK's [MSFT] WebLog

    Learning Essentails in Exchange PSS

    • 4 Comments
    Learning Essentials Ever wonder how we internally develop our people? How our top people continue to develop? As one might expect we do REQUIRE the technical staff of Product Support Services (PSS) to maintain their MCSE/MCSD certification. However, this...
  • JeremyK's [MSFT] WebLog

    Out of Control Transaction Log files?

    • 4 Comments
    An issue came up this week that I feel is worth making Exchange Admins aware of. The symptoms of the problem is transaction logs growing uncontrollably on the Exchange Server (as high as 1000 logs per an hour). However there is no growth encountered in...
  • JeremyK's [MSFT] WebLog

    The stages of conversion for Internet Mail

    • 4 Comments
    As Naresh pointed out in his history of content conversion blog, Exchange 2000 swapped the roles of our primary transport from X.400 to SMTP. As such we also more closely integrated in native MIME formatted message into Exchange store by introducing the...
  • JeremyK's [MSFT] WebLog

    Still Unable to Edit User Properties in ADUC?

    • 3 Comments
    This is an issue that I ended up spending 6 hours debugging, only because the answer could not be found in any documentation. I know as soon as I post this someone will go post a comment saying "duh, its documented right here <link>" The scenario...
  • JeremyK's [MSFT] WebLog

    Attention all Recruiters

    • 3 Comments
    I must have been pinged a dozen times since I put up my blog by recruiters looking to sway me away from one of the best companies to work for. The opportunities they offer are to “deploy” or “consult” in the deployment of Microsoft...
  • JeremyK's [MSFT] WebLog

    Using your Mailbox to Store Work-in-Progress documents

    • 3 Comments
    Like most people, I work on a collection of work-in-progress documents. Over time I started loosing track of where the latest version of a particular document was left... my desktop, tabletpc, laptop, or on my home machine. Then I remembered a relatively...
  • JeremyK's [MSFT] WebLog

    Watch out for that 16gb limit!

    • 2 Comments
    Part of my role is to understand trends and determine how technically we can solve our supportability issues. While performing some reviews of cases related to store startup, I was shocked at the number of cases where the 16GB limit of the standard version...
  • JeremyK's [MSFT] WebLog

    The Effects of Message Looping

    • 1 Comments
    I have seen this problem several times in the last few weeks and figured it was worth a quick blog entry. Here is what happens: A Unix host with a running daemon sends some sort of email message a User reporting on the status of processing a request....
  • JeremyK's [MSFT] WebLog

    VSAPI Postings just started going live on Exchange Team Blog!

    • 1 Comments
    I've been putting together several postings regarding the VSAPI including background, architecture, performance, and troubleshooting analysis for the Exchange Team blog. The first one just went live... http://blogs.msdn.com/exchange/archive/2004/10/20...
  • JeremyK's [MSFT] WebLog

    Do you know your critical code paths?

    • 0 Comments
    In my role I interact with a lot of developers and it is continuously amazing how naive an individual can be regarding the interactions their own code has with other components. I'll shorten this example to the critical points... In one instance I recall...
  • JeremyK's [MSFT] WebLog

    Follow up to "Large Messages Affect Server Performance"

    • 0 Comments
    This is a follow up to a previous post I made: http://blogs.msdn.com/jeremyk/archive/2004/02/29/81773.aspx The final fix for this issue in Exchange 2000 ( 836738 ) was released several weeks ago, but a problem was discovered unrelated to this change...
  • JeremyK's [MSFT] WebLog

    Who am I?

    I work in part of Microsoft that has a very unique charter. Our organization is responsible for listening, agreegating, and summarizing key points of feedback from partners and customers across Microsoft Services. If you unfamiliar with Microsoft Services...
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