Microsoft KB Archive/824430

= FIX: Performance decreases over time when you back up files in SQL Server 2000 =

Article ID: 824430

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Workgroup Edition
 * Microsoft SQL Server 2000 Desktop Engine (Windows)
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition 64-bit

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SUMMARY
''Microsoft distributes SQL Server 2000 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2000 fix release.''



Article Contents

 * Summary
 * Introduction
 * Issues that are fixed by this hotfix package
 * More Information
 * Service pack information
 * Hotfix information
 * Prerequisites
 * Restart information
 * Registry information
 * Hotfix file information
 * Status
 * References



SUMMARY
This article describes the following about this hotfix release:
 * The issues that are fixed by this hotfix package.
 * The prerequisites for installing the hotfix package.
 * Whether you must restart your computer after you install the hotfix package.
 * Whether the hotfix package is replaced by any other hotfix package.
 * Whether you must make any registry changes.
 * The files that are contained in the hotfix package.

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Issues that are fixed by this hotfix package
The following issue is fixed in this Microsoft SQL Server 2000 hotfix package:  If the SQL Server virtual address space is highly fragmented, one of the user mode schedulers can become monopolized while you run a backup command to back up the transaction log or the database files. This behavior could cause a temporary reduction in overall transactional throughput on the server. Symptoms may include other logins or queries timing out while the backup operation runs.

Additionally, while the backup operation runs, you may receive an error message in the SQL Server error log that is similar to the following:

2004-11-02 10:48:46.03 server Error: 17883, Severity: 1, State: 0

2004-11-02 10:48:46.03 server The Scheduler 1 appears to be hung. SPID 169, ECID 0, UMS Context 0x000006FBCA36F9A0.



For a list of previous hotfixes, see the &quot;Microsoft SQL Server 2000 Post-Service Pack 3 or Microsoft SQL Server 2000 Post-Service Pack 3a hotfixes&quot; section in the following Microsoft Knowledge Base article:

290211 How to obtain the most recent SQL Server 2000 Service Pack

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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

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Prerequisites
This hotfix requires Microsoft SQL Server 2000 Service Pack 3 (SP3). For information about how to obtain SQL Server 2000 SP3, see the following article in the Microsoft Knowledge Base:

290211 How to obtain the most recent SQL Server 2000 service pack

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Restart information
You do not have to restart your computer after you apply this hotfix.

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Registry information
You do not have to create or modify any registry keys to enable this hotfix.

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Hotfix file information
This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain of all the files that you must have to fully update a product to the latest build.

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 -- 31-May-2003  18:45  2000.80.818.0     78,400  Console.exe 25-Jun-2003 01:01  2000.80.818.0     33,340  Dbmslpcn.dll 25-Apr-2003 02:12                   786,432  Distmdl.ldf 25-Apr-2003 02:12                 2,359,296  Distmdl.mdf 30-Jan-2003 01:55                       180  Drop_repl_hotfix.sql 23-Jun-2003 22:40  2000.80.837.0  1,557,052  Dtsui.dll 23-Jun-2003 22:40  2000.80.837.0    639,552  Dtswiz.dll 24-Apr-2003 02:51                   747,927  Instdist.sql 03-May-2003 01:56                     1,581  Inst_repl_hotfix.sql 08-Feb-2003 06:40  2000.80.765.0     90,692  Msgprox.dll 01-Apr-2003 02:07                     1,873  Odsole.sql 05-Apr-2003 01:46  2000.80.800.0     62,024  Odsole70.dll 07-May-2003 20:41  2000.80.819.0     25,144  Opends60.dll 02-Apr-2003 21:48  2000.80.796.0     57,904  Osql.exe 02-Apr-2003 23:15  2000.80.797.0    279,104  Pfutil80.dll 22-May-2003 22:57                    19,195  Qfe469571.sql 11-Jul-2003 17:04                 1,084,147  Replmerg.sql 04-Apr-2003 21:53  2000.80.798.0    221,768  Replprov.dll 08-Feb-2003 06:40  2000.80.765.0    307,784  Replrec.dll 11-Jul-2003 16:56                 1,085,925  Replsys.sql 01-Jun-2003 01:01  2000.80.818.0    492,096  Semobj.dll 31-May-2003 18:27  2000.80.818.0    172,032  Semobj.rll 29-May-2003 00:29                   115,944  Sp3_serv_uni.sql 01-Jun-2003 01:01  2000.80.818.0  4,215,360  Sqldmo.dll 07-Apr-2003 17:44                    25,172  Sqldumper.exe 19-Mar-2003 18:20  2000.80.789.0     28,672  Sqlevn70.rll 02-Jul-2003 00:18  2000.80.834.0    180,736  Sqlmap70.dll 08-Feb-2003 06:40  2000.80.765.0     57,920  Sqlrepss.dll 10-Jul-2003 22:00  2000.80.840.0  7,553,105  Sqlservr.exe 08-Feb-2003 06:40  2000.80.765.0     45,644  Sqlvdi.dll 25-Jun-2003 01:01  2000.80.818.0     33,340  Ssmslpcn.dll 01-Jun-2003 01:01  2000.80.818.0     82,492  Ssnetlib.dll 01-Jun-2003 01:01  2000.80.818.0     25,148  Ssnmpn70.dll 01-Jun-2003 01:01  2000.80.818.0    158,240  Svrnetcn.dll 31-May-2003 18:59  2000.80.818.0     76,416  Svrnetcn.exe 30-Apr-2003 23:52  2000.80.816.0     45,132  Ums.dll 02-Jul-2003 00:19  2000.80.834.0     98,816  Xpweb70.dll Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.

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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.

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