Introduction The purpose of this document is to describe in detail how to modify the Performance Sentry Portal (hereafter referred to as “the Portal”) authentication and authorization settings. By default, the Portal is configured to use Windows authentication to control access to the web pages as well as to control how the Portal itself connects […]
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I’m unable to push a new Data Collection Set (DCS) to a 64 Bit Machine
Situation: Performance Sentry Administration is used to assign Data Collection Sets (DCSs) to machines running the data collection service. An administrator has two options when assigning data collection sets to machines: The first one is called a Registry DCS and the second a File DCS. The Registry DCS parameters are written to the Registry key: […]
I do not see a drive letter for some of my logical disks. Instead, I see something that looks like HarddiskDmVolumessystemnameDg0Volume1 instead. What is that all about?
Logical disk information containing “HarddiskVolume…” usually indicates an unformatted partition. Knowledge Base article (Q260834) describes the ‘HarddiskVolume’ label as a volume that has been mounted, but not assigned a drive letter. See http://support.microsoft.com/default.aspx?scid=kb;EN-US;q260834 There is another MS KB entry that specfically discusses “HarddiskDmVolumes” names. See http://support.microsoft.com/?kbid=274311. This It’s type I allowed from do football players […]
I am concerned about the overhead of the diskperf measurements. What does this feature cost?
There is very little overhead involved with the collection of diskperf measurements. We strongly recommend that you enable all disk performance data collection on any system where you care about performance. Even if you don’t care that much about performance, you should turn on Logical Disk reporting at a minimum. The Logical Disk Object contains […]
I see a value of 2.63 in the Ave Disk Queue Length Counter field. How should I interpret this value?
The Ave Disk Queue Length Counter is derived from the product of Avg.Disk sec/Transfer) times Disk Transfers/sec, the average response of the device times the I/O rate. This corresponds to a well-known theorem of Queuing Theory called Little’s Law, which states: N = l * Sr where N is the number of outstanding requests in […]
If I am running multiple instances of SQL Server, how do I figure out which instance of the sqlservr.exe process data maps to which SQL Server instance?
On machines where multiple instances of SQL Server are installed, you will see multiple instances of the sqlservr.exe process running. You will need a procedure for associating the performance data at the SQL Server process level — which provides processor utilization statistics and overall memory consumption — with the SQL Server performance counters for that […]
What do I need to do to monitor my servers running MS Exchange, SQL Server, or IIS?
Everything you need to monitor Windows Servers running MS Exchange, SQL Server, IIS, or any other application is included in Performance Sentry. You only need to assign a Data Collection set (DCS) appropriate to the application that runs on these servers to start gathering data on these applications.
What key metrics in Windows I should collect and report on?
Once Performance Sentry is installed and you are able to collect and process Windows performance data on a consistent basis, it is a good idea to familiarize yourself with some of the more important data elements that you will be collecting with Performance Sentry. There are several ways to approach this. To help you get […]
What User Rights and Permissions does the User Account that I will run the Performance Sentry Collection Service under require?
OK, you asked for it. If you do not need to gather Module identification information, you can run the Performance Sentry collection service under a User Account. You can only set the Collection Service to run under a User Account manually using the Services Administrative Tool, which is illustrated below: To function correctly, the User Account […]
Can the Performance Sentry Collection Service impersonate a User Account to gain access to secure network resources?
Yes, the Performance Sentry collection service can impersonate a User Account to gain access to secure network resources. By design, the Performance Sentry Collection Service (dmperfss.exe) is installed to run under the built-in LocalSystem (SYSTEM) account. This built-in account, which most services use, has the authority to perform almost any internal function on the local […]
