FIX: Cannot Set SQL Server Instance Specific Network Affinity (818768)

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

290211 How to obtain the latest SQL Server 2000 service pack

Hotfix information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version         Size             File name
   ---------------------------------------------------------------------------
   26-Feb-2003  03:41  2000.80.777.0      29,244 bytes  Dbmslpcn.dll     
   25-Apr-2003  02:12                    786,432 bytes  Distmdl.ldf
   25-Apr-2003  02:12                  2,359,296 bytes  Distmdl.mdf
   30-Jan-2003  01:55                        180 bytes  Drop_repl_hotfix.sql
   07-Apr-2003  19:15  2000.80.801.0   1,557,052 bytes  Dtsui.dll        
   24-Apr-2003  02:51                    747,927 bytes  Instdist.sql
   30-Jan-2003  01:55                      1,402 bytes  Inst_repl_hotfix.sql
   08-Feb-2003  06:40  2000.80.765.0      90,692 bytes  Msgprox.dll      
   01-Apr-2003  02:07                      1,873 bytes  Odsole.sql
   05-Apr-2003  01:46  2000.80.800.0      62,024 bytes  Odsole70.dll     
   02-Apr-2003  21:48  2000.80.796.0      57,904 bytes  Osql.exe         
   02-Apr-2003  23:15  2000.80.797.0     279,104 bytes  Pfutil80.dll     
   04-Apr-2003  21:27                  1,083,467 bytes  Replmerg.sql
   04-Apr-2003  21:53  2000.80.798.0     221,768 bytes  Replprov.dll     
   08-Feb-2003  06:40  2000.80.765.0     307,784 bytes  Replrec.dll      
   01-Apr-2003  02:23                  1,084,828 bytes  Replsys.sql
   16-Apr-2003  22:39                    115,892 bytes  Sp3_serv_uni.sql
   07-Apr-2003  17:44                     25,172 bytes  Sqldumper.exe    
   19-Mar-2003  18:20  2000.80.789.0      28,672 bytes  Sqlevn70.rll
   24-Apr-2003  05:39  2000.80.811.0     176,696 bytes  Sqlmap70.dll     
   08-Feb-2003  06:40  2000.80.765.0      57,920 bytes  Sqlrepss.dll     
   30-Apr-2003  23:52  2000.80.816.0   7,540,817 bytes  Sqlservr.exe     
   08-Feb-2003  06:40  2000.80.765.0      45,644 bytes  Sqlvdi.dll       
   26-Feb-2003  03:41  2000.80.777.0      29,244 bytes  Ssmslpcn.dll     
   26-Feb-2003  03:41  2000.80.777.0      82,492 bytes  Ssnetlib.dll     
   30-Apr-2003  23:52  2000.80.816.0      45,132 bytes  Ums.dll          
   28-Feb-2003  01:34  2000.80.778.0      98,872 bytes  Xpweb70.dll

Note Because of file dependencies, the most recent hotfix or feature that contains the files may also contain additional files.

MORE INFORMATION

With this fix, you can set the incoming Tabular Data Stream (TDS) network affinity for an instance of SQL Server by using the -N## (case sensitive) startup parameter.

SQL Server uses a high priority thread to handle incoming TDS I/O completion activities. The network thread can be affinitized to a processor by providing the -N## startup parameter. The mask passed to the -N## startup parameter is used in a SetThreadAffinityMask call to establish the network threads affinity.

By default, the network affinity is not set. However, if you must establish network affinity for the server that is running SQL Server, Microsoft recommends that you set the mask to the last physical processor. When you set the affinity mask to the last physical processor of your computer, all incoming connection activity is automatically affinitized with the last physical processor, and the UMS scheduler associated with the last processor is correctly weighted to allow more network based activities.

For high end systems, you can combine the -N## startup parameter with the -I## command line parameter, the sp_configure stored procedure "'affinity mask", and the Virtual Interface Architecture (VIA) card affinity settings to manage the SQL Server resources.

REFERENCES

For a SQL Server 2000 Service Pack 2 (SP2) version of this fix, see the following article in the Microsoft Knowledge Base:

818764 FIX: Cannot Set SQL Server Instance Specific Network Affinity

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates