• BlackBerry® Enterprise Server software version 4.1 Service Pack 6 (4.1.6) for IBM® Lotus® Domino®
• BlackBerry® Enterprise Server software version 4.1 Service Pack 6 (4.1.6) for Microsoft® Exchange
• SDR200820

• CPU usage increases to 100%
• The BlackBerry Controller log files increase rapidly, and can reach over 1 GB in size
• The following error message appears repeatedly in the Application Event log files and BlackBerry Controller log files:

[DIAG] Error telling the debug trace file position : Permission denied (error : 13)

1. Navigate to the Software Download for BlackBerry Enterprise Server web page.
2. Select BlackBerry Enterprise Server v4.1 for the product being used, and click Next.
3. Click the Download link for Service Pack 6 Maintenance Release 1. Note: Before running the Windows® installer patch, make sure that you are logged in with the BlackBerry Enterprise Server service account.
4. Extract the files locally.
5. Run the Windows installer patch that has been extracted locally.

1. From the computer hosting the the BlackBerry Alert Service, right-click My Computer, and select Manage. Note: You can also click Start > Run, type services.msc, and click OK.
2. Go to Services and Applications > Services.
3. Right-click Blackberry Alert Service, and click Properties.
4. From the Startup Type drop-down list, click Disabled.
5. Click OK.

1. Open the BlackBerry Server Configuration Panel by clicking Start > Programs > BlackBerry Enterprise Server > BlackBerry Server Configuration.
2. Click the Logging tab.
3. In the Service Name window, select BlackBerry Controller, and change the Debug log daily file option to No.