Therefore, the level of utilization for those resources is always commensurate with the capabilities of the system. The server test also includes a shutdown and restart test. This test signals the system to shut down and restart. The test records the event log information related to shutting down and restarting the system, such as vetoes that prevent shutdown, the startup event, and any driver errors that are received after restarting the system. This test makes sure that all device drivers in the system comply with system shutdown, do not veto, and cleanly restart in the system without conflicting with other drivers.
You must schedule the Run First and Run Last jobs only one time for each submission, but you must schedule and run the Start Test job multiple times until it passes. You must also schedule the Run Last - Reset Machine Policies job if you are going to schedule other different jobs in the same machine pool.
Two kinds of virtualization tests are run against a server, including virtual machine functionality tests and SVVP System functionality tests. The system can be a standalone server or a virtual machine.
LoadGen is started on the master client and can use multiple stress client computers to generate network load on the system under test. The functionality tests are individual tests of the capabilities of the product's virtual machine implementation. The SVVP System functionality tests validate the functionality of the following aspects and components of the virtual machine:.
Virtualization products correctly expose to the instance of the running operating system, the fact that the operating system is running in a virtual environment.
Server systems might have additional functionality beyond that which is required for Windows Server Certification. LoadComplete provides you with the ability to measure the mentioned metrics by using special hardware counters. For more information on them, see below. This counter is available only on Windows-based hosts.
Memory MB - The amount of currently used memory in megabytes. These counters are provided by the Standard counters provider. Besides the predefined counters, you can also use custom server counters to measure hardware resources the tested web application consumes. Below are lists of counters used for monitoring hardware performance of these servers. The percentage of time the processor spends receiving and servicing hardware interrupts. This value is an indirect indicator of the activity of devices that generate interrupts, such as network adapters.
The average number of both read and write requests that were queued for the selected disk during the sample interval. The average number of read requests that were queued for the selected disk during the sample interval. The average number of write requests that were queued for the selected disk during the sample interval.
To monitor a counter value, you need to include it into the monitoring tasks. These values can be compared to desirable results to ascertain the overall health of the drive.
Under normal circumstances, their effectiveness is questionable. However, you may rely on them for benchmarking the cards, which would help you locate issues at a later stage. There are hardware testing suites available in the market.
A few of them are free-ware s , others are licensed. However, the broad range of tools that are part of these suites are not always fully used. They are mostly heavy on your wallet and a better option would be to rely on different tools for different purposes. You could very well consider that as a point when selecting your data-center.
Sankar works as a Senior Software Engineer in Bobcares. He joined Bobcares back in April During his free time, he listens to music, and enjoys singing.. Or click here to learn more.
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Just about any stress testing or burn-in software will clock the rate at which the hard disk can be accessed. What makes the Passmark software different though is that you can specify things like the size of the test file, the size of the data blocks, whether you want sequential or random disk access, and the actual access method, as shown in Figure B.
For example, a large block size usually means that there are fewer requests and the disk will appear to perform better. Likewise, if the data is sequential, the disk will also tend to perform better. Many stress testing applications do not give you these kinds of choices and you are left wondering how valid the results really are. The Passmark software allows you to set up the server to accept requests and to then set up a workstation to flood the server with data.
The software will then measure data throughput and the impact on the CPU. Again, there are lots of different applications that can perform this type of testing. What I like about the Passmark software is that you can specify a variable block size, a port number, and the duration of the test as shown in Figure C. Two other types of tests that are important to run are memory and CPU tests.
The Passmark software contains an excellent CPU test, as shown in Figure D , that involves running multiple, high-demand applications simultaneously. Up until now the server should have been running a default installation of Windows and maybe a couple of test applications. The reason is that many of the tests that you have been performing could potentially crash the server. If the server were running a live application with real data, the database could potentially become corrupted. The time for cautious testing has passed though.
You should configure Windows as it will be configured when the server enters a production environment. You should also go ahead and install any applications that will run on the server. Once the server is all loaded up, you need to perform a few simple tests to make sure that the application is running correctly and that clients are able to connect to it. I am assuming that the application has been thoroughly tested prior to placing it on this server.
If the application is a commercial one such as Microsoft Exchange Server or Microsoft SQL Server, then the application has already been thoroughly tested and should run fine as long as you have all of the service packs installed and your server hardware meets the minimum requirements and is listed on the Windows hardware compatibility list.
If the application was developed in house, there are no guarantees as to its stability. Hopefully, the application has been thoroughly tested in a lab environment prior to your placing it onto a production server. Even if the application has been tested though, it has yet to be tested on your new server and you should schedule a testing phase before going completely live with the application. In such a situation, the testing phase usually consists of a limited deployment in which a small subset of users are given access to the application and are asked to start using it, but to report anything strange that may happen.
This allows you to see how the application will behave in a real-world environment, but to do so in a way that minimizes the damage that will be caused should the application fail. The idea is that while a small subset of users are using the application, you should test the server under the absolute worst possible conditions to see how well it holds up. Before you perform these tests though, I strongly recommend backing up your server.
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