embed barcode in crystal report Performing Recovery with RMAN in Font

Generator Code 3/9 in Font Performing Recovery with RMAN

Performing Recovery with RMAN
Code 39 Full ASCII Creator In None
Using Barcode creator for Font Control to generate, create Code 39 Full ASCII image in Font applications.
www.OnBarcode.com
Making QR Code JIS X 0510 In None
Using Barcode drawer for Font Control to generate, create QR Code image in Font applications.
www.OnBarcode.com
It s critical to have the right log files during a recovery, and RMAN, with its automatic maintenance of the necessary files, can be a big help. RMAN can help you perform all the user-managed types of recovery, and it provides several other benefits discussed in the following section. This chapter focuses on RMAN recovery techniques, although I do discuss user-managed recovery techniques briefly. As was explained in 15, you can use RMAN to make either image copies that are similar to operating system file copies or proprietary backup sets. If you have RMAN image copies, you can
UPC-A Supplement 5 Generation In None
Using Barcode maker for Font Control to generate, create UPC-A Supplement 2 image in Font applications.
www.OnBarcode.com
Generating PDF 417 In None
Using Barcode creator for Font Control to generate, create PDF 417 image in Font applications.
www.OnBarcode.com
CHAPTER 16 DATABASE RECOVERY
Barcode Creation In None
Using Barcode creation for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
ANSI/AIM Code 128 Printer In None
Using Barcode creator for Font Control to generate, create Code 128 Code Set C image in Font applications.
www.OnBarcode.com
directly use them to perform a recovery. However, if you have backup sets, you must first extract the backup files using the RESTORE command before you can perform a recovery.
European Article Number 13 Drawer In None
Using Barcode generation for Font Control to generate, create GTIN - 13 image in Font applications.
www.OnBarcode.com
Encode USPS OneCode Solution Barcode In None
Using Barcode creation for Font Control to generate, create 4-State Customer Barcode image in Font applications.
www.OnBarcode.com
Note
Code39 Generation In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create Code 39 image in ASP.NET applications.
www.OnBarcode.com
Code 39 Extended Generator In Java
Using Barcode creation for Java Control to generate, create Code 3 of 9 image in Java applications.
www.OnBarcode.com
You can use the database backups instead of the actual database files to transport tablespaces. Thus, you don t need to make a running database s datafiles read-only in order to transport tablespaces.
Encoding Barcode In None
Using Barcode generator for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
Encode UCC - 12 In Java
Using Barcode generator for Java Control to generate, create UPC-A image in Java applications.
www.OnBarcode.com
RMAN s Advantages for Recovery
Create Code 128 Code Set B In None
Using Barcode drawer for Software Control to generate, create USS Code 128 image in Software applications.
www.OnBarcode.com
EAN / UCC - 13 Decoder In Visual C#.NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
RMAN provides undeniable benefits when compared to the traditional user-managed recovery methods. Here s a summary of what RMAN offers during a database recovery: RMAN selects and applies the necessary data and log files during recovery. RMAN selects the most recent backup sets and image copies to recover with. RMAN can perform recovery at the data block level with the block media recovery feature (an option not otherwise available), which dramatically reduces recovery time. RMAN provides restore optimization, a great time-saving feature that enables you to bypass datafiles that are okay during the recovery process. RMAN can check the files that need to be restored and avoid recovering bad files. RMAN allows you to recover by applying incrementally updated backups, which drastically reduces recovery time. RMAN provides the DUPLICATE command, which lets you easily create clones of your production database. RMAN restores datafiles from backups and applies the necessary archived redo logs to bring the database up to date. RMAN knows, by looking into its recovery catalog, which files it needs. You thus avoid the extremely labor-intensive and error-prone manual intervention in a typical user-managed recovery.
Creating EAN 128 In Java
Using Barcode creation for Eclipse BIRT Control to generate, create GS1-128 image in BIRT applications.
www.OnBarcode.com
Make Barcode In Java
Using Barcode encoder for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
Note
Encoding Matrix In C#
Using Barcode creator for Visual Studio .NET Control to generate, create 2D Barcode image in .NET applications.
www.OnBarcode.com
Drawing Barcode In Objective-C
Using Barcode creator for iPad Control to generate, create Barcode image in iPad applications.
www.OnBarcode.com
The recovery catalog, as you learned in 15, provides so many benefits that you should plan on using it if RMAN is a part of your backup and recovery strategy.
Decode Code 128 Code Set C In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Generate Code 128 Code Set C In None
Using Barcode creator for Office Excel Control to generate, create Code 128 image in Excel applications.
www.OnBarcode.com
One of the biggest advantages to using RMAN is that you can check whether your backups are valid before performing a recovery. The following section explains how to validate backups taken with RMAN.
Using VALIDATE BACKUP to Validate RMAN Backups
When you use RMAN to perform backup and recovery tasks, it s easy to verify that a certain backup not only exists, but also is usable. The LIST command shows information about backup sets, proxy copies, and image copies recorded in the RMAN repository. You can use the LIST BACKUP command in RMAN to view information about backup sets, backup pieces, and proxy copies. The LIST COPY command shows information about all datafile copies, archived redo logs, and image copies of archived redo logs. The LIST BACKUP SUMMARY command shows a summary of all RMAN backups. The LIST commands show usable and unusable backups, backups that can and can t be restored, and expired and unavailable backups. You must use the RECOVERABLE option with the LIST command, to list only those backups that can be used for recovery.
CHAPTER 16 DATABASE RECOVERY
The VALIDATE BACKUPSET command checks the usability of RMAN backups. You can get the backup set information by first using the LIST BACKUP command. You can then use the VALIDATE BACKUPSET command to check a backup set s usability. Here s an example of the use of the VALIDATE BACKUPSET command: RMAN> VALIDATE BACKUPSET 1; allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=155 devtype=DISK channel ORA_DISK_1: starting validation of datafile backupset channel ORA_DISK_1: reading from backup piece . . . channel ORA_DISK_1: restored backup piece 1 piece handle=/u01/app/oracle/10.2.0/db_3/flash_recovery_area/NICKO... channel ORA_DISK_1: validation complete, elapsed time: 00:00:34 RMAN> The validation complete message on the last line is confirmation that RMAN considers the specified backup set valid for a restore operation.
Copyright © OnBarcode.com . All rights reserved.