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Get a glimpse interior Microsoft windows Server 2003 Insider Solutionswith this excerpt from Chapter 8, "Administering windows Server 2003 Remotely." click birthright here to study this chapter or here to purchase the ebook.
ebook abstract:in preference to being a accustomed planning, design, and implementation guide, this booklet is a major resource for home windows specialists to ascertain information, hints, and greatest practices for implementing and aiding key windows Server 2003 applied sciences. The authors started working with windows Server 2003 (then codename Whistler) simply days after the code for home windows 2000 became locked, when most agencies Have been getting a primary haphazard to notice the windows 2000 server product. With greater than three years of undergo working with Whistler in early beta and construction implementations, the authors of this e-book Have offered a resource to assist you gain windows 2003 technologies work effectively.
Chapter abstract:remote server administration will furthermore be a huge time-saver, and windows Server 2003 has the elements you want for making the system even simpler, faster and more secure. This chapter excerpt provides a complete overview of latest equipment, finest practices, protection and modern features such as far flung assistance and Emergency management service.
This chapter download from "Microsoft home windows Server 2003 Insider options" through Andrew Abbate, Eric Kovach, Rand Morimoto and Ed Roberts is printed with authorization from Sams, Copyright 2004.to peruse entire chapter downloads accessible on SearchWinComputing.com, click here.
Administering home windows Server 2012 examination 70-411 App covers the 2nd of three assessments required for Microsoft certified options affiliate (MCSA): home windows Server 2012 certification. This direction will befriend validate the capabilities and talents essential to manage a home windows Server 2012 Infrastructure in an enterprise atmosphere. The three MCSA assessments jointly validate the scholarship and skills critical for enforcing, managing, preserving, and provisioning capabilities and infrastructure in a windows Server 2012 atmosphere. This Microsoft official educational course is mapped to the 70-411 Administering windows Server 2012 examination ambitions. This App makes a speciality of precise scholarship for actual jobs and prepares college students to show mastery of core features similar to consumer and community administration, community entry, and statistics security.
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direction outline:lessons:1 Deploying and Managing Server Images2 implementing Patch Management3 Monitoring Servers4 Configuring allotted File system (DFS)5 Configuring File Server resource supervisor (FSRM)6 Configuring File services and Disk Encryption7 Configuring superior Audit Policies8 Configuring DNS Zones9 Configuring DNS Records10 Configuring VPN and Routing11 Configuring Direct Access12 Configuring a network policy Server13 Configuring NPS Policies14 Configuring network entry insurance policy (NAP)15 Configuring Server Authentication16 Configuring domain Controllers17 keeping lively Directory18 Configuring Account Policies19 Configuring neighborhood coverage Processing20 Configuring neighborhood policy Setting21 Managing neighborhood policy Objects22 Configuring community coverage Preferences
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Administering Windows Server 2012 Exam 70-411 App covers the second of three exams required for Microsoft Certified Solutions Associate (MCSA): Windows Server 2012 certification. This course will befriend validate the skills and scholarship necessary to administer a Windows Server 2012 Infrastructure in an enterprise environment. The three MCSA exams collectively validate the skills and scholarship necessary for implementing, managing, maintaining, and provisioning services and infrastructure in a Windows Server 2012 environment. This Microsoft Official Academic Course is mapped to the 70-411 Administering Windows Server 2012 exam objectives. This App focuses on actual skills for actual jobs and prepares students to prove mastery of core services such as user and group management, network access, and data security.
In Administering Windows Server 2012 Exam 70-411 free app giving access for 16 (70%) Lessons and following lesson quiz.
Course Outline:LESSONS:1 Deploying and Managing Server Images2 Implementing Patch Management3 Monitoring Servers4 Configuring Distributed File System (DFS)5 Configuring File Server Resource Manager (FSRM)6 Configuring File Services and Disk Encryption7 Configuring Advanced Audit Policies8 Configuring DNS Zones9 Configuring DNS Records10 Configuring VPN and Routing11 Configuring Direct Access12 Configuring a Network Policy Server13 Configuring NPS Policies14 Configuring Network Access Protection (NAP)15 Configuring Server Authentication16 Configuring Domain Controllers17 Maintaining lively Directory18 Configuring Account Policies19 Configuring Group Policy Processing20 Configuring Group Policy Setting21 Managing Group Policy Objects22 Configuring Group Policy Preferences
Disclaimer :This app was not created or endorsed by Microsoft
TestOut’s newest release for the MCSA certification track will occupy your Microsoft Windows Server skills to the next flush and prepare you for Microsoft’s 70-411 exam as well as TestOut Windows Server Pro: Manage and Administer Certification exam.LEARN SKILLS, NOT ANSWERS
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LabSim includes everything you need to prepare for certification.
Note: LabSim does not comprehend the cost of vendor or association certification exams.
The following section is topical in approach. Rather than represent entire the administrative functions and capabilities of a certain screen, such as the Database Settings page in the SSMS protest Explorer, this section provides a top-down view of the most distinguished considerations when designing the storage for an instance of SQL Server 2012 and how to achieve maximum performance, scalability, and reliability.
This section begins with an overview of database files and their consequence to overall I/O performance, in “Designing and Administering Database Files in SQL Server 2012,” followed by information on how to effect distinguished step-by-step tasks and management operations. SQL Server storage is centered on databases, although a few settings are adjustable at the instance-level. So, Great consequence is placed on proper design and management of database files.
The next section, titled “Designing and Administering Filegroups in SQL Server 2012,” provides an overview of filegroups as well as details on distinguished tasks. Prescriptive guidance furthermore tells distinguished ways to optimize the expend of filegroups in SQL Server 2012.
Next, FILESTREAM functionality and administration are discussed, along with step-by-step tasks and management operations in the section “Designing for BLOB Storage.” This section furthermore provides a brief introduction and overview to another supported method storage called Remote Blob Store (RBS).
Finally, an overview of partitioning details how and when to expend partitions in SQL Server 2012, their most effectual application, common step-by-step tasks, and common use-cases, such as a “sliding window” partition. Partitioning may be used for both tables and indexes, as detailed in the upcoming section “Designing and Administrating Partitions in SQL Server 2012.”Designing and Administrating Database Files in SQL Server 2012
Whenever a database is created on an instance of SQL Server 2012, a minimum of two database files are required: one for the database file and one for the transaction log. By default, SQL Server will create a unique database file and transaction log file on the identical default destination disk. Under this configuration, the data file is called the Primary data file and has the .mdf file extension, by default. The log file has a file extension of .ldf, by default. When databases need more I/O performance, it’s typical to add more data files to the user database that needs added performance. These added data files are called Secondary files and typically expend the .ndf file extension.
As mentioned in the earlier “Notes from the Field” section, adding multiple files to a database is an effectual pass to enlarge I/O performance, especially when those additional files are used to segregate and offload a portion of I/O. They will provide additional guidance on using multiple database files in the later section titled “Designing and Administrating Multiple Data Files.”
When you Have an instance of SQL Server 2012 that does not Have a high performance requirement, a unique disk probably provides adequate performance. But in most cases, especially an distinguished production database, optimal I/O performance is crucial to meeting the goals of the organization.
The following sections address distinguished proscriptive guidance concerning data files. First, design tips and recommendations are provided for where on disk to region database files, as well as the optimal number of database files to expend for a particular production database. Other guidance is provided to represent the I/O repercussion of certain database-level options.Placing Data Files onto Disks
At this stage of the design process, imagine that you Have a user database that has only one data file and one log file. Where those individual files are placed on the I/O subsystem can Have an mammoth repercussion on their overall performance, typically because they must share I/O with other files and executables stored on the identical disks. So, if they can region the user data file(s) and log files onto part disks, where is the best region to set aside them?
When designing and segregating I/O by workload on SQL Server database files, there are certain predictable payoffs in terms of improved performance. When separating workload on to part disks, it is implied that by “disks” they express a unique disk, a RAID1, -5, or -10 array, or a volume mount point on a SAN. The following list ranks the best payoff, in terms of providing improved I/O performance, for a transaction processing workload with a unique major database:
Figure 3.5 shows what this configuration might peruse like.
Figure 3.5. sample of basic file placement for OLTP workloads.
Figure 3.6 shows an sample of intermediate file placement for OLTP workloads.
Figure 3.6. sample of intermediate file placement for OLTP workloads.
Figure 3.7 shows and sample of advanced file placement for OLTP workloads.
Figure 3.7. sample of advanced file placement for OLTP workloads.
As mentioned earlier, SQL Server defaults to the creation of a unique primary data file and a unique primary log file when creating a modern database. The log file contains the information needed to gain transactions and databases fully recoverable. Because its I/O workload is serial, writing one transaction after the next, the disk read-write head rarely moves. In fact, they don’t want it to move. Also, for this reason, adding additional files to a transaction log almost never improves performance. Conversely, data files hold the tables (along with the data they contain), indexes, views, constraints, stored procedures, and so on. Naturally, if the data files reside on segregated disks, I/O performance improves because the data files no longer contend with one another for the I/O of that specific disk.
Less well known, though, is that SQL Server is able to provide better I/O performance when you add secondary data files to a database, even when the secondary data files are on the identical disk, because the Database Engine can expend multiple I/O threads on a database that has multiple data files. The general rule for this technique is to create one data file for every two to four ratiocinative processors available on the server. So, a server with a unique one-core CPU can’t really occupy advantage of this technique. If a server had two four-core CPUs, for a total of eight ratiocinative CPUs, an distinguished user database might carry out well to Have four data files.
The newer and faster the CPU, the higher the ratio to use. A brand-new server with two four-core CPUs might carry out best with just two data files. furthermore note that this technique offers improving performance with more data files, but it does plateau at either 4, 8, or in rare cases 16 data files. Thus, a commodity server might show improving performance on user databases with two and four data files, but stops showing any improvement using more than four data files. Your mileage may vary, so be positive to test any changes in a nonproduction environment before implementing them.Sizing Multiple Data Files
Suppose they Have a modern database application, called BossData, coming online that is a very distinguished production application. It is the only production database on the server, and according to the guidance provided earlier, they Have configured the disks and database files dote this:
Most of the time, BossData has grotesque I/O performance. However, it occasionally slows down for no immediately evident reason. Why would that be?
As it turns out, the size of multiple data files is furthermore important. Whenever a database has one file larger than another, SQL Server will route more I/O to the large file because of an algorithm called round-robin, proportional fill. “Round-robin” means that SQL Server will route I/O to one data file at a time, one birthright after the other. So for the BossData database, the SQL Server Database Engine would route one I/O first to the primary data file, the next I/O would depart to the first secondary data file in line, the next I/O to the next secondary data file, and so on. So far, so good.
However, the “proportional fill” Part of the algorithm means that SQL Server will focus its I/Os on each data file in whirl until it is as full, in proportion, to entire the other data files. So, if entire but two of the data files in the BossData database are 50Gb, but two are 200Gb, SQL Server would route four times as many I/Os to the two bigger data files in an endeavor to sustain them as proportionately full as entire the others.
In a situation where BossData needs a total of 800Gb of storage, it would be much better to Have eight 100Gb data files than to Have six 50Gb data files and two 200Gb data files.Autogrowth and I/O Performance
When you’re allocating space for the first time to both data files and log files, it is a best practice to diagram for future I/O and storage needs, which is furthermore known as capacity planning.
In this situation, evaluate the amount of space required not only for operating the database in the near future, but evaluate its total storage needs well into the future. After you’ve arrived at the amount of I/O and storage needed at a reasonable point in the future, remark one year hence, you should preallocate the specific amount of disk space and I/O capacity from the beginning.
Over-relying on the default autogrowth features causes two significant problems. First, growing a data file causes database operations to slow down while the modern space is allocated and can lead to data files with widely varying sizes for a unique database. (Refer to the earlier section “Sizing Multiple Data Files.”) Growing a log file causes write activity to cease until the modern space is allocated. Second, constantly growing the data and log files typically leads to more ratiocinative fragmentation within the database and, in turn, performance degradation.
Most experienced DBAs will furthermore set the autogrow settings sufficiently high to avoid frequent autogrowths. For example, data file autogrow defaults to a sparse 25Mb, which is certainly a very minute amount of space for a busy OLTP database. It is recommended to set these autogrow values to a considerable percentage size of the file expected at the one-year mark. So, for a database with 100Gb data file and 25GB log file expected at the one-year mark, you might set the autogrowth values to 10Gb and 2.5Gb, respectively.
Additionally, log files that Have been subjected to many tiny, incremental autogrowths Have been shown to underperform compared to log files with fewer, larger file growths. This phenomena occurs because each time the log file is grown, SQL Server creates a modern VLF, or virtual log file. The VLFs connect to one another using pointers to show SQL Server where one VLF ends and the next begins. This chaining works seamlessly behind the scenes. But it’s simple common sense that the more often SQL Server has to read the VLF chaining metadata, the more overhead is incurred. So a 20Gb log file containing four VLFs of 5Gb each will outperform the identical 20Gb log file containing 2000 VLFs.Configuring Autogrowth on a Database File
To configure autogrowth on a database file (as shown in figure 3.8), supervene these steps:
You can alternately expend the following Transact-SQL syntax to modify the Autogrowth settings for a database file based on a growth rate of 10Gb and an unlimited maximum file size:USE [master] GO ALTER DATABASE [AdventureWorks2012] MODIFY FILE ( cognomen = N'AdventureWorks2012_Data', MAXSIZE = UNLIMITED , FILEGROWTH = 10240KB ) GO Data File Initialization
Anytime SQL Server has to initialize a data or log file, it overwrites any residual data on the disk sectors that might be hanging around because of previously deleted files. This process fills the files with zeros and occurs whenever SQL Server creates a database, adds files to a database, expands the size of an existing log or data file through autogrow or a manual growth process, or due to a database or filegroup restore. This isn’t a particularly time-consuming operation unless the files involved are large, such as over 100Gbs. But when the files are large, file initialization can occupy quite a long time.
It is workable to avoid full file initialization on data files through a technique convene instant file initialization. Instead of writing the entire file to zeros, SQL Server will overwrite any existing data as modern data is written to the file when instant file initialization is enabled. Instant file initialization does not work on log files, nor on databases where transparent data encryption is enabled.
SQL Server will expend instant file initialization whenever it can, provided the SQL Server service account has SE_MANAGE_VOLUME_NAME privileges. This is a Windows-level authorization granted to members of the Windows Administrator group and to users with the effect Volume Maintenance assignment security policy.
For more information, mention to the SQL Server Books Online documentation.Shrinking Databases, Files, and I/O Performance
The Shrink Database assignment reduces the physical database and log files to a specific size. This operation removes excess space in the database based on a percentage value. In addition, you can enter thresholds in megabytes, indicating the amount of shrinkage that needs to occupy region when the database reaches a certain size and the amount of free space that must remain after the excess space is removed. Free space can be retained in the database or released back to the operating system.
It is a best practice not to shrink the database. First, when shrinking the database, SQL Server moves full pages at the conclude of data file(s) to the first open space it can find at the nascence of the file, allowing the conclude of the files to be truncated and the file to be shrunk. This process can enlarge the log file size because entire moves are logged. Second, if the database is heavily used and there are many inserts, the data files may Have to grow again.
SQL 2005 and later addresses slow autogrowth with instant file initialization; therefore, the growth process is not as slow as it was in the past. However, sometimes autogrow does not snare up with the space requirements, causing a performance degradation. Finally, simply shrinking the database leads to extravagant fragmentation. If you absolutely must shrink the database, you should carry out it manually when the server is not being heavily utilized.
You can shrink a database by right-clicking a database and selecting Tasks, Shrink, and then Database or File.
Alternatively, you can expend Transact-SQL to shrink a database or file. The following Transact=SQL syntax shrinks the AdventureWorks2012 database, returns freed space to the operating system, and allows for 15% of free space to remain after the shrink:USE [AdventureWorks2012] GO DBCC SHRINKDATABASE(N'AdventureWorks2012', 15, TRUNCATEONLY) GO Administering Database Files
The Database Properties dialog box is where you manage the configuration options and values of a user or system database. You can execute additional tasks from within these pages, such as database mirroring and transaction log shipping. The configuration pages in the Database Properties dialog box that influence I/O performance comprehend the following:
The upcoming sections represent each page and setting in its entirety. To invoke the Database Properties dialog box, effect the following steps:
The second Database Properties page is called Files. Here you can change the owner of the database, enable full-text indexing, and manage the database files, as shown in figure 3.9.
Figure 3.9. Configuring the database files settings from within the Files page.Administrating Database Files
Use the Files page to configure settings pertaining to database files and transaction logs. You will disburse time working in the Files page when initially rolling out a database and conducting capacity planning. Following are the settings you’ll see:
Perform the following steps to enlarge the data file for the AdventureWorks2012 database using SSMS:
Keep in judgement that many other database options can Have a profound, if not at least a nominal, repercussion on I/O performance. To peruse at these options, right-click the database cognomen in the SSMS protest Explorer, and then select Properties. The Database Properties page appears, allowing you to select Options or Change Tracking. A few things on the Options and Change Tracking tabs to sustain in judgement comprehend the following:
Filegroups are used to house data files. Log files are never housed in filegroups. Every database has a primary filegroup, and additional secondary filegroups may be created at any time. The primary filegroup is furthermore the default filegroup, although the default file group can be changed after the fact. Whenever a table or index is created, it will be allocated to the default filegroup unless another filegroup is specified.
Filegroups are typically used to region tables and indexes into groups and, frequently, onto specific disks. Filegroups can be used to stripe data files across multiple disks in situations where the server does not Have RAID available to it. (However, placing data and log files directly on RAID is a superior solution using filegroups to stripe data and log files.) Filegroups are furthermore used as the ratiocinative container for special purpose data management features dote partitions and FILESTREAM, both discussed later in this chapter. But they provide other benefits as well. For example, it is workable to back up and retrieve individual filegroups. (Refer to Chapter 6 for more information on recovering a specific filegroup.)
To effect touchstone administrative tasks on a filegroup, read the following sections.Creating Additional Filegroups for a Database
Perform the following steps to create a modern filegroup and files using the AdventureWorks2012 database with both SSMS and Transact-SQL:
Alternately, you may create a modern filegroup as a set of adding a modern file to a database, as shown in figure 3.10. In this case, effect the following steps:
Alternatively, you can expend the following Transact-SQL script to create the modern filegroup for the AdventureWorks2012 database:USE [master] GO ALTER DATABASE [AdventureWorks2012] ADD FILEGROUP [SecondFileGroup] GO Creating modern Data Files for a Database and Placing Them in Different Filegroups
Now that you’ve created a modern filegroup, you can create two additional data files for the AdventureWorks2012 database and region them in the newly created filegroup:
The earlier image, in figure 3.10, showed the basic elements of the Database Files page. Alternatively, expend the following Transact-SQL syntax to create a modern data file:USE [master] GO ALTER DATABASE [AdventureWorks2012] ADD FILE (NAME = N'AdventureWorks2012_Data2', FILENAME = N'C:\AdventureWorks2012_Data2.ndf', SIZE = 10240KB , FILEGROWTH = 1024KB ) TO FILEGROUP [SecondFileGroup] GO Administering the Database Properties Filegroups Page
As stated previously, filegroups are a Great pass to organize data objects, address performance issues, and minimize backup times. The Filegroup page is best used for viewing existing filegroups, creating modern ones, marking filegroups as read-only, and configuring which filegroup will be the default.
To better performance, you can create subsequent filegroups and region database files, FILESTREAM data, and indexes onto them. In addition, if there isn’t enough physical storage available on a volume, you can create a modern filegroup and physically region entire files on a different volume or LUN if a SAN is used.
Finally, if a database has static data such as that organize in an archive, it is workable to plug this data to a specific filegroup and sequel that filegroup as read-only. Read-only filegroups are extremely snappy for queries. Read-only filegroups are furthermore effortless to back up because the data rarely if ever changes.
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