Server Pc
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Black Box Server Master For Pc $693.99 Black Box Server Master For Pc |
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HP License – Standard – 1 Server – PC 452151B21 $142.48 HP License – Standard – 1 Server – PC 452151B21 |
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IBM PC Server 500 (8641-xYx) 4MB Memory Upgrade $11.99 IBM PC Server 500 (8641-xYx) 4MB FPM |
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Startech.com / 42U BLK ADJ OPEN SERVER PC / 4POSTRACKBK $412.1 Startech.com – 42U BLK ADJ OPEN SERVER PC – 4POSTRACKBK |
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HP Microsoft Windows Server 2008 License – Standard – PC 468730B21 $148.24 HP Microsoft Windows Server 2008 License – Standard – PC 468730B21 |
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Rubbermaid 7J93 Produce Saver Square Food Storage Containers Set of 8 $14.44 * Produce saver * Fresh vent and crisp tray keeps produce fresh and crisp longer * Lids and trays snap to bases and each other for easy and organized storage * Microwave, freezer, and dishwasher safe * Square design * 8-piece set includes: one 14-cup, one 5-cup, and two 2-cup food-storage containers, with four lids… |
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Cuisinart SS-700 Single Serve Brewing System, Silver – Powered by Keurig $141.89 Perfect for both personal use and entertaining%2C this single%2Dserve home%2Dbrewing system offers consumers fresh gourmet coffee%2C tea%2C hot cocoa%2C and more in under one minute%2E Choose either 4%2C 6%2C 8%2C or 10 ounce from the icon on brewing size options%2E Using Keurig K%2DCups%97featuring over two hundred varieties of pre%2Dmeasured%2C premium brand coffee and tea%2D%2Dthis brewer%92s i… |
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Joseph Joseph ELGB0100CB Elevate 6-Piece Heat-Resistant Utensil Set $26.75 Keep your counter tops clean while cooking with the Elevate multi-color six piece utensil set from Joseph Joseph. This six piece set includes a spaghetti server, slotted spoon, ladle, slotted turner, solid spoon, and a flexible turner in a variety of colors from blue and green to yellow, orange and pink. The innovative, weighted handle system allows for you to set the utensil on your counter top w… |
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Cisco-Linksys BEFSRU31 EtherFast Cable/DSL Router with USB & 3-Port 10/100 Switch $294.00 The Linksys EtherFast cable/DSL router with USB and three-port 10/100 switch lets you connect your desktop or notebook PC to your router easily with a USB cable–without installing a network card. Configurable as a DHCP server, this router protects networks of up to 253 users with its NAT firewall. You can manage and modify your router’s network with IP filtering, forwarding, and DMZ hosting…. |
Evaluating Performance With SQL Server Monitoring Counters
SQL server counters are special tools used within SQL server monitoring. They allow you to measure the various factors of SQL server performance. Collecting the data over time enables you to see historic trends for current and future SQL Server optimization efforts. These counters can be utilized for specific metrics of your choice. Counters aid DBAs in identifying and solving SQL server performance issues.
Discover more SQL Server monitoring tactics.
Here are 5 common SQL server counters you could use while optimizing your SQL server.
1. Buffer Manager: Page Life Expectancy
Page life expectancy counters determine the length of time a page remains in the buffer cache. This is usually measured in seconds. The longer a page stays in memory the more likely SQL Server queries will not need to read from disk. As page life expectancy is increased so will the performance of the system.
2. Batch Requests/Second
Batch requests/second measure the number of batches SQL Server receives per second. It shows the activity that a SQL server is currently processing. As the numbers grow, so do the number of query executions. SQL Server optimization requires periodic measurements to determine SQL Server performance over time.
3. SQL Compilations/Second
The measurement of SQL compilations/second refers to the amount of execution plan a SQL server can compile in a second. This procedure is very resource intensive and can hurt your SQL server performance. Comparing this measurement against batch requests/second allows you to identify whether or not compilations are hindering performance.
4. Buffer Cache Hit Ratio
A buffer cache hit ratio will determine how frequently SQL servers find data pages in their buffer cache when a query requests it. A number closer to 100 indicates superior performance. It means the SQL server could gather the data from memory rather than from a disk.
Learn about the benefits of SQL Server optimization.
5. Lock Waits/Second
Sometimes SQL servers must lock the system resources to be able to handle the increased numbers of users using the system simultaneously. Lock waits/seconds is a measurement that counts how many times a SQL server couldn't retain a lock. Failure to retain a lock negatively impacts SQL Server performance. Ideally, zero is your SQL monitoring target. Larger numbers indicate decreased performance.