exis recovery

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Ontape-r Recovery Summary

The following is my ontape-r summary. I just share my experience (because I have seen this post in the Forum, but it is not very detailed) The whole process is only completed in a unique environment that I can access. If you have any mistakes, please let us know... It consists of six parts:1. Prerequisites for recovery 2. Detailed recovery process 3. Monitoring during recovery4. The online. log of the enti

Principles of transaction and database recovery

The principle of transaction and database recovery The logical unit of data storage is the data block, and the logical unit of data manipulation is the transaction. A transaction is a user-defined set of sequence of operations, consisting of one or more related SQL statements, which is the basic logical unit of a database application. Transaction management technology mainly includes database recovery tec

Backup and recovery of Oracle databases

When we use a database, we always hope that the database content is reliable and correct, but due to computer system faults, hardware faults, software faults, network faults, process faults and system faults) the operation of the database system is affected, the correctness of the data in the database is affected, or even the database is damaged, so that all or part of the data in the database is lost. Therefore, when the above fault occurs, we hope to re-establish a complete database, which is

Android recovery Analysis

Android recovery AnalysisFunctions of Recovery Android uses the Recovery mode to restore factory settings, full-package OTA upgrades, and incremental package upgrades. The upgrade is generally performed by running the META-INF/com/google/android/update-script in the upgrade package to execute a custom upgrade, the script is a set of

Database recovery of MSSQL enterprise actual combat

The purpose of a full database restore is to restore the entire database. The entire database is offline during the restore. Before any part of the database becomes online, all data must be restored to the same point, that is, all parts of the database are at the same time and no uncommitted transactions exist. Under the full recovery model, the database can be restored to a specific point in time. The point in time can be the most recent available ba

Network data backup and recovery

Network data backup and recovery I. Reasons for data failure  Fault classification of computer systems and analysis of faults  Class A: computer hardware and software faults  • Occurrence: for enterprises, the most likely and frequent occurrence may lead to abnormal work, and serious loss of important data may lead to huge economic losses. This is a type of fault that often occurs;  • Solution: Local dual-machine hot backup is recommended to achieve

Data Recovery Wizard How to restore the U disk data?

u disk, Plug and Play, small and flexible, easy to carry, is everyone's necessary portable data storage tools. As a result of the use of U disk features, the need to frequently plug, bear too much storage data and delete data operations, making U disk data loss occurs often, once the U disk data loss, how to do u disk data recovery?   Choosing the right Data recovery model From the previous Data

Backup and recovery solutions based on the MDS 9000 Series

Purpose This White Paper aims to discuss backup, recovery architecture and solutions, and introduce the features of the Cisco MDS 9000 series multi-layer guide and network switches. Introduction Global Enterprises with key business data on servers require continuous application availability. For a large amount of data generated by applications such as supply chain management SCM, Enterprise Resource Planning ERP, and customer relationship management C

Configure the SQL Server database recovery mode (two methods), SQL Server

Configure the SQL Server database recovery mode (two methods), SQL Server The following describes how to configure the SQL Server database recovery mode. Set recovery mode with T-SQLYou can useAlter database"Add"Set recovery"Statement to modify the database recovery mode. Fo

Backup and recovery of SDE data

Backup and recovery of spatial data in ArcSDE: With the increasing requirements of GIS application systems in terms of complexity, integration, and concurrency, the amount of space data required by the system is rapidly increasing. At the same time, users' demands for concurrent access to spatial data are becoming increasingly prominent. The traditional file storage and representation of spatial data methods obviously cannot meet these needs. Becaus

Android recovery code analysis

For code analysis on recovery, see another article AndroidRecovery Pipeline Code Analysis Make an upgrade program that supports SD card, USB flash drive, and Flash. This upgrade application must be used together with the recovery under/recovery/sbin, Firmware includes boot. IMG, recovery. IMG, system. IMG, System. IMG

Oracle Database enforcement shutdown causes database to start recovery example

A customer qq found me and said that a friend recommended me to help them restore the database. Due to the forced shutdown, the database could not start normally. Database recover database failed Mon Mar 28 10:20:33 2016 ALTER DATABASE RECOVER database Media Recovery Start started logmerger process Parallel Media Recovery started with 32 slaves Mon Mar 28 10:20:36 2016

MySQL Management and optimization (20): Backup and Recovery

Tags: style http color io os using AR for fileBackup and Recovery: backups make the data in the database more efficient and secure . Backup/Restore Policy:Some factors to consider when making a backup or recovery: determining whether the storage engine for the tables to be backed up is transactional or non-transactional, the two different storage engine backups are not quite the same in

The principle analysis of TCP fast retransmission and fast recovery

Translated from: http://blog.csdn.net/zhangskd/article/details/7174682Time-out retransmission is an important mechanism for the TCP protocol to guarantee the reliability of data, and the principle is to open a timer after sending a data.If there is no ACK message sent to the datagram for a certain amount of time, the data is sent again until it is successfully sent. This is the dataA patching mechanism given in case of packet loss. In general, retransmission occurs after a timeout, but if the se

XP operating System Recovery features complete introduction

Introduction | Recovery 1. What is System Recovery? With Windows XP system Recovery, users (system administrators and owners) can restore a machine to a previous state when they encounter problems. The system Recovery feature automatically monitors system file changes and changes to certain application files, recording

Oracle Incomplete recovery based on user management

Oracle data recovery from the recovery type, cast aside the specific files, the total can be divided into two major types of recovery, one is full recovery, one is not full recovery. In fact, once you are familiar with the Oracle architecture, there is a general concept for

Oracle backup recovery-TrialRecovery

Trialrecovery is basically similar to normal media recovery. The redo process only occurs in the memory and data changes are not written to the disk. To put it bluntly, the test media is restored. Trial recovery is basically similar to normal media recovery. The redo process of an application only occurs in the memory and data changes are not written to the disk.

Lenovo Server failed to start data recovery cause analysis

The server as the data centralized storage and management place, once it has failed, will cause the user and the enterprise to have the very big loss. Lenovo, as the most popular server brand, is used by many enterprises. Lenovo server does not start the problem is a frequent problem with the server process, many users are do anything. For users, the data in the server is very important, there is a way to solve the Lenovo server can not start the problem? How do we recover the data from the Leno

Oracle recovery Internal principles (Overview)

Oracle 7 v7.2 recovery outline Author: Andrea Borr Bill Bridge Versions: 1 May 3, 1995 Summary This topic describes how to recover a database in Oracle 7.2. Readers of this article should be familiar with the management guide of Oracle 7.2. Compared with the management guide, this document aims to describe the algorithms, data structures, and technical details used for Oracle restoration in more detail. Articles: Oracle

V. Restoration and recovery

V. Restoration and recovery5.1 conventional restoration and recoveryThe entire recovery process of RMAN can be divided into restoration and recovery.The difference is that one refers to the restoration and copying of physical files, and the other refers to the restoration of Database Consistency. Therefore,Correct understanding of these two concepts will help you recover the database correctly.For RMAN backup, The Restoration Operation can only be per

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