c# library for qr code Transaction log shipping in Visual C#

Encoder QR Code 2d barcode in Visual C# Transaction log shipping

11.2 Transaction log shipping
Denso QR Bar Code Maker In Visual C#.NET
Using Barcode printer for .NET Control to generate, create QR image in Visual Studio .NET applications.
www.OnBarcode.com
Reading QR-Code In C#.NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Log shipping was first introduced in SQL Server 2000, although many DBAs implemented it before then using a series of custom jobs. Put simply, log shipping automates the backup, copy, and restore of a source database s transaction logs to one or more secondary server instances seeded with a full backup of the source database restored in recovering mode. A commonly referenced backup best practice is to restore backups on a regular basis to ensure they re valid. Until they re restored you can t be 100 percent sure that they ll work in an emergency restore scenario. The problem a lot of organizations have with this recommendation is the time and equipment required to carry it out. Manually copying and restoring backup files on the off chance that something may be wrong isn t the most rewarding of tasks, and as a result, it s often shelved as a good idea for implementation at a later point, once everything else is done which of course never happens.
Code 128C Generation In C#
Using Barcode printer for VS .NET Control to generate, create Code 128 Code Set C image in Visual Studio .NET applications.
www.OnBarcode.com
Creating 1D In Visual C#.NET
Using Barcode drawer for VS .NET Control to generate, create 1D image in Visual Studio .NET applications.
www.OnBarcode.com
Transaction log shipping
Creating UCC.EAN - 128 In Visual C#
Using Barcode maker for .NET framework Control to generate, create UCC-128 image in Visual Studio .NET applications.
www.OnBarcode.com
Paint GS1 - 12 In Visual C#
Using Barcode generation for Visual Studio .NET Control to generate, create UPCA image in .NET applications.
www.OnBarcode.com
The best way of implementing this recommendation is to automate it as part of an infrastructure solution. For example, in the next chapter we ll look at automating a full backup and restore together with DBCC checks in providing a reporting database that s automatically refreshed on a regular basis while also taking care of the recommendation to run backup verification and DBCC checks. As we covered earlier, transaction logs are a crucial component in the ability to recover a database to a point in time, and a broken log chain destroys this ability. Perhaps the best method for automating the restore of transaction logs, and therefore validating the log chain, is through the use of transaction log shipping. Later in this section we ll walk through the process of establishing a log shipping session, which will highlight its various components and advantages. Before we do that, let s examine some of the common log shipping usage scenarios.
Draw UPC - 13 In C#.NET
Using Barcode drawer for VS .NET Control to generate, create GTIN - 13 image in .NET applications.
www.OnBarcode.com
Codabar Generator In Visual C#.NET
Using Barcode encoder for VS .NET Control to generate, create ABC Codabar image in .NET applications.
www.OnBarcode.com
11.2.1 Usage scenarios
QR-Code Decoder In VS .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Making QR Code ISO/IEC18004 In Java
Using Barcode maker for Eclipse BIRT Control to generate, create QR Code image in Eclipse BIRT applications.
www.OnBarcode.com
In addition to the major benefit of constant, automatic log chain validation, log shipping provides a number of other benefits, making it a commonly used solution for a variety of scenarios. OFFSITE RECOVERY POINT Log shipping can be used to provide an offsite, up-to-date copy of a mission-critical database. In the event of total environment destruction, the offsite copy can quickly restore any remaining logs and be brought online and available for application usage. Compared to database mirroring, discussed in detail later in the chapter, log shipping has a much greater transaction latency. The default frequency of the log backup, copy, and restore jobs is 15 minutes, so the secondary database will typically be between 30 and 45 minutes behind the primary. While at first this may appear to be a weakness of log shipping, in some instances it presents a stronger solution than database mirroring. Consider a situation in which a table is accidentally (or maliciously) dropped. In the case of database mirroring, by the time the error was realized, the change would probably already exist on the mirror. With log shipping, the restore containing the error can be canceled, or restored just prior to the error. Think of this as a 7-second broadcast delay. REPORTING SOLUTION As we ll see shortly, when restoring the transaction logs on the secondary database, the standby option can be invoked. This option enables the secondary database to be used for read purposes in between log restores. Together with the ability to schedule the restores, this can enable the database to be used for reporting purposes for certain periods of the day. The major benefit of log shipping when compared to database mirroring is that a log shipping source can be shipped to multiple destinations. For example, one destination could be used as a reporting source and another destination set up as a dedicated failover point. Each can have its own copy and restore schedules. Further, each
Draw Barcode In .NET
Using Barcode creator for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
PDF417 Creation In None
Using Barcode creator for Microsoft Word Control to generate, create PDF417 image in Office Word applications.
www.OnBarcode.com
PDF 417 Encoder In Java
Using Barcode creation for Java Control to generate, create PDF 417 image in Java applications.
www.OnBarcode.com
USS Code 128 Generator In .NET
Using Barcode drawer for ASP.NET Control to generate, create Code 128 Code Set B image in ASP.NET applications.
www.OnBarcode.com
Barcode Generator In VS .NET
Using Barcode printer for VS .NET Control to generate, create Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Make UPC Symbol In None
Using Barcode creator for Office Word Control to generate, create UPC-A Supplement 5 image in Word applications.
www.OnBarcode.com
Create GS1 128 In None
Using Barcode drawer for Online Control to generate, create EAN / UCC - 14 image in Online applications.
www.OnBarcode.com
Print Code 39 Extended In None
Using Barcode maker for Excel Control to generate, create Code39 image in Office Excel applications.
www.OnBarcode.com
Printing PDF-417 2d Barcode In .NET Framework
Using Barcode encoder for Reporting Service Control to generate, create PDF417 image in Reporting Service applications.
www.OnBarcode.com
Code 39 Extended Reader In VS .NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.