Windows 2003 Sp2 Iso Download

Issue

After upgrading HP ProLiant Support Pack (PSP) to 8.25, you may notice that CPU utilization goes high on a multi-processor server system.

Solution

In order to verify which driver is sending most of the interrupts to the CPU, the Microsoft utility Kernrate can be used. The publicly available Kernrate is capable of profiling the CPU only for x86-based servers. For x64-based servers, the relevant Microsoft Windows DDK kit needs to be installed.

The Microsoft Windows Server 2003 version can be downloaded from the Windows® Server 2003 R2 Platform SDK ISO Download Microsoft Download Center web page. Click here to go to the 'Windows® Server 2003 R2 Platform SDK ISO Download' web page (http://www.microsoft.com/downloads/details.aspx?FamilyId=E15438AC-60BE-41BD-AA14-7F1E0F19CA0D&displaylang=en) .

The Microsoft Windows Server 2008 version can be downloaded from the Windows Driver Kit Version 7.0.0 Microsoft Download Center web page. Click here to go to the 'Windows Driver Kit Version 7.0.0' web page (http://www.microsoft.com/downloads/details.aspx?FamilyID=2105564e-1a9a-4bf4-8d74-ec5b52da3d00&displaylang=en) .

After the Windows DDK has been downloaded, install only Tools from the list of available installation options. After the installation, locate Kernrate.exe in the folder:

Where <InstallDir> is the directory where you have installed the Windows DDK.

Upon analyzing the Kernrate logs, it was observed that HPQILO2.SYS was the driver sending most of the interrupts to the CPU. However, the load was seen only on one processor and the other three processors were not loaded. This meant that the CPU load was not distributed uniformly to all the four processors. The load across all the CPU looks like:

Proc Elapsed Privileged User Idle DPC Interrupt TotalInterrupts
0 463281250 1250000 468750 461562500 0 0 12471
1 463281250 1093750 625000 461562500 0 312500 15315
2 463281250 3437500 2500000 457343750 468750 781250 32478
3 463281250 379687500 468750 83125000 0 378281250 4236759

The fourth processor is getting most of the interrupts and is thus spiking for most of the time.

Upgrading HPQILO2.SYS to the latest version, 1.11.2.0, did not resolve the issue. In order to resolve the issue follow Microsoft Knowledge Base Article 892100, The processor load is not distributed across multiple processors on a computer that is running Windows Server 2003, Windows 2000 Server, or Windows NT 4.0. Click here to view Microsoft Knowledge Base Article 892100 (http://support.microsoft.com/kb/892100) . Implementing the solution suggested by Microsoft Knowledge Base Article 892100 resolved the issue by putting the load evenly on all servers.

Keywords: 'high cpu utilization'; 'cpu spike'; 'cpu 100%'; 'after applying PSP'; 'after upgrading PSP'; 'PSP 8.25'.