QR Generator In VB.NET
Using Barcode encoder for VS .NET Control to generate, create QR image in .NET applications.www.OnBarcode.com
Decode QR Code ISO/IEC18004 In Visual Basic .NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in VS .NET applications.www.OnBarcode.com
In the following case scenario, you will apply what you ve learned in this chapter. You can find the answers to the questions in the Answers section at the end of this chapter.
Bar Code Generator In VB.NET
Using Barcode creator for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.www.OnBarcode.com
Bar Code Scanner In Visual Basic .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.www.OnBarcode.com
QR Code ISO/IEC18004 Printer In C#
Using Barcode drawer for Visual Studio .NET Control to generate, create QR Code 2d barcode image in .NET framework applications.www.OnBarcode.com
Paint QR Code JIS X 0510 In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.www.OnBarcode.com
Case Scenario: Resolving Physical Server and Database Bottlenecks
Create QR Code In .NET
Using Barcode creation for Visual Studio .NET Control to generate, create QR-Code image in VS .NET applications.www.OnBarcode.com
Draw GTIN - 13 In Visual Basic .NET
Using Barcode creation for .NET Control to generate, create EAN / UCC - 13 image in .NET applications.www.OnBarcode.com
You are a DBA with Trey Research and are responsible for a SQL Server 2005 member server named SQLA that is located at company headquarters. SQLA contains the company s Human Resources (HR) database, customer database, and research projects database. Trey Research has expanded rapidly in the last year, resulting in an expansion of the number of employees, customers, and research projects. As a result, the response time for queries run against all three databases, but especially the research projects database, has increased noticeably. Management has provided a budget to upgrade SQLA if necessary, but they want to ensure that expenditure is prioritized to resolve major system bottlenecks. You suspect that some queries are misconfigured, causing excessive recompiles. You are also concerned that transaction logs might be becoming full. SQLA is running SQL Server 2005 SP1 Enterprise Edition on a Windows Server 2003 member server in the Trey Research Active Directory domain. It is an SMP server with four Pentium 4 CPUs running at 3.0 GHz, with 4 GB of RAM, and six physical disks at 60 GB apiece. Of the six physical disks, the first two form a hardware RAID1 array that holds the operating system, SQL Server 2005, and the transaction log. The remaining four disks are used in a hardware RAID10 configuration and contain the HR, customer, and research projects databases. The current size of the research projects database is 10 GB, and the database has been growing at an average rate of 5 percent per month for the past year. Customer growth is occurring at the same rate. The current size of the HR database is 5 GB, and this database has been growing at an average rate of 1.5 percent per month for the past year. At present, there is no failover server. Peak activity for the database server occurs between 6 P.M. and 9 P.M. local time. You have been collecting counter logs during these times. Viewing these logs in System Monitor reveals the average values shown in Table 1-3.
Barcode Printer In VB.NET
Using Barcode printer for .NET framework Control to generate, create bar code image in .NET framework applications.www.OnBarcode.com
EAN / UCC - 14 Generator In VB.NET
Using Barcode encoder for .NET Control to generate, create GS1-128 image in .NET framework applications.www.OnBarcode.com
GS1 - 12 Printer In VB.NET
Using Barcode generator for .NET framework Control to generate, create GS1 - 12 image in .NET applications.www.OnBarcode.com
Printing UPC-E Supplement 2 In Visual Basic .NET
Using Barcode maker for VS .NET Control to generate, create UPC E image in .NET applications.www.OnBarcode.com
Performance Log Results for SQLA
Barcode Reader In Java
Using Barcode Control SDK for Eclipse BIRT Control to generate, create, read, scan barcode image in BIRT reports applications.www.OnBarcode.com
GS1 - 13 Generator In None
Using Barcode printer for Font Control to generate, create GTIN - 13 image in Font applications.www.OnBarcode.com
Object: Counter Processor: % Processor Time Memory: Pages/sec Physical Disk: % Disk Time
Code128 Creation In Objective-C
Using Barcode generation for iPad Control to generate, create Code-128 image in iPad applications.www.OnBarcode.com
Generating DataMatrix In Objective-C
Using Barcode drawer for iPhone Control to generate, create Data Matrix ECC200 image in iPhone applications.www.OnBarcode.com
Average Reading 60% 25 42%
Drawing PDF-417 2d Barcode In None
Using Barcode drawer for Microsoft Word Control to generate, create PDF-417 2d barcode image in Office Word applications.www.OnBarcode.com
Code 128A Decoder In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.www.OnBarcode.com
Code 3 Of 9 Creator In None
Using Barcode maker for Office Excel Control to generate, create Code 39 Extended image in Office Excel applications.www.OnBarcode.com
Bar Code Creation In Java
Using Barcode creation for Android Control to generate, create barcode image in Android applications.www.OnBarcode.com
Performance Log Results for SQLA
Object: Counter Physical Disk: Avg. Disk Queue Length SQL Server Buffer Manager: Buffer Cache Hit Ratio
Average Reading 2 89%
1. Which subsystem is the most likely cause of the long response times during hours of peak usage 2. What short-term fix could improve SQL Server 2005 performance 3. What tools can you use to analyze and optimize queries 4. How can you detect excessive recompiles 5. What graphical tool can you use to analyze deadlocks and find what is causing them 6. You need to be alerted if a transaction log is becoming full. How should you configure this alert
To help you successfully master the exam objectives presented in this chapter, complete the following tasks.
Troubleshoot Physical Server Performance
The main tools for troubleshooting physical server performance are the Windows Server 2003 (or Windows 2000 Server) Performance Tools, particularly Performance Logs and Alerts.
Practice 1: Use the Windows Server 2003 Performance Tools.
Configure counter logs, trace logs, and alerts. Investigate the use of instances. Click the Explain button to find out what the various counters record.
Troubleshoot Instance Performance
The main tool for troubleshooting instance performance is SQL Server Profiler.
Practice 1: Use SQL Server Profiler. Use Profiler to generate and analyze traces generated by queries, stored procedures, and applications. Search the Internet for sample Profiler traces (for example, in online magazines).
Troubleshoot Database Performance
You can use several tools to troubleshoot database performance. These include SQL Server Management Studio, Transact-SQL statements, stored procedures, DMVs, SQL Server Profiler, and the DTA.
Practice 1: Use SQL Server Management Studio. This tool is likely your main inter-
face with SQL Server. Use Object Explorer, Query Editor, and Activity Monitor. Find out what additional features the tool provides.
Practice 2: Use Transact-SQL statements, stored procedures, and DMVs. You are not expected to write large Transact-SQL applications, but you do need to be able to use Query Editor for administration and troubleshooting. Practice executing Transact-SQL statements, stored procedures, and DMVs from Query Editor. Build on the examples given in this chapter. Practice 3: Use Profiler.
Generate Profiler traces, and investigate the Deadlock Run the DTA on your test network. Do not run this tool