© 2008-2020 ResearchGate GmbH. GPSS AS A TOOL FOR MODELING OF THE CLASSIC PROBLEMS IN THE OPERATING SYSTEMS, Optimal strategic decision for disaster recovery, Selecting Technology for Disaster Recovery, An empirical IT contingency planning model for disaster recovery strategy selection, Service-oriented data processing, searching, storing and visualization, Innovative Platform for Intelligent Management and Analysis of Big Data Streams Supporting Biomedical Scientific Research, Hybrid Parallel Implementation of Multiple Sequence Alignment Software ClustalW on Intel Xeon Ph. HP Data, Protector allows keeping in parallel on four tapes, which, further raises the speed of the backup. Choosing the right IT contingency planning (ITCP) for disaster recovery (DR) insures business continuity and optimizes banking investment. and this can easily be done through GUI (Figure 1). Amazon Web Services – Backup and Recovery Approaches Using AWS June 2016 Page 5 of 26 Security: AWS provides a number of options for access control and encrypting data in transit and at rest. The paper outlines practical guidelines that close the gap between business-oriented analyses and technical design of disaster recovery facilities. One way to reduce that, time is by providing high speed between SQL server and, In our case we have two types of databases. backup on the disk is possible to use option INIT: In the case of need to check the integrity of the backup. In this paper the database backup strategies and recovery models for various specific cases are discussed and explained. Backup determines how a copy of the database and/or, transaction logs is built up and which media are used for, this process. Oracle® Database Backup and Recovery User's Guide 12c Release 1 (12.1) E50658-09 June 2017. In this course, you will be introduced to Oracle Database Cloud Service.

0000001674 00000 n The operating princi-, ple of media coverage is based on client-server idea. The Create Database Backup Wizard (see Figure 7.3) enables you to construct separate backup tasks that can be scheduled or run manually.This wizard supports the backup of complete databases, differential databases, and transaction logs. This might mean copying data from backup media to an existing device or to a new device. of every transaction that makes changes in the database. At the end of recovery, transactions that are not committed are refused (ROLLED, BACK), and those who are committed are included in the, To recover the database at a given moment of time is. In this paper the database backup strategies and recovery models for various specific cases are discussed and explained. Backup of the database affects others as differential, backup or transaction log that the database can have. Databases that are, more than 2 TB are stored on the SAN, because several ad-, vantage especially the speed of the backup. Sustained data availability, accuracy, security, and updating of financial transactions are critical for banking business services. The significance of 24 × 365 hour service availability with accurate and secured data is the business comparative and competitive advantages. Existing procedures of risk assessment and business impact analysis allow to assess the probability and potential results of a disaster, but do not provide direct guidelines as to the technical decisions. Restore is the process of retrieving data from a backup. An integrated solution for managing, storing, analyzing and visualizing large arrays of heterogeneous data is offered. Database systems, like any other computer system, are subject to failures but the data stored in it must be available as and when required.When a database fails it must possess the facilities for fast recovery. Database Backup. E.g. Define your expectations and intent in a policy A policy over backup and recovery communicates it can be achieved with the parameter VERIFYONLY, as this parameter check whether backup is formatted cor-. This ensures seamless recovery of data. Join ResearchGate to find the people and research you need to help your work. Here is an example of a database snapshot: It should be noted that the database snapshot is open, only for reading. Oracle Database Backup and Recovery User's Guide, 12c Release 1 (12.1) E50658-09 Also, for environments in which it is feasible to rerun processes, we describe an algorithm which determines a recovery strategy. In this way the snapshot database, is open for reading and in every moment of time is in the. Full recovery model ñ using this model the database, and transaction log backup are created and reconstruction. 0000003334 00000 n In the contexts of system and media failures, efficient single-page recovery enables on-demand incremental "redo" and "undo" as part of system restart or media restore operations. 0000001018 00000 n In the case of recovering the database that is stored, In case the backup is on tape, to determine exactly, which backup is needed, the parameter HEADERONLY, is used that returns information about each of the backups, For example, for second file of the file group is used, However, this command can be executed only if there, is a prior transaction log backup with the parameter, into recovery mode[6]. rights that are needed of the new location. During the transaction, log backup all information which is located in the log is, moved to backup and transaction log released. The DR strategy model proposed the optimization strategy for choosing the right pattern of disaster recovery solution for each business unit requirements with decision-making information supports. The big advantage, of using SAN is that client and server HP Data Protec-, tor communicate through SAN network interface, which, provides much faster traffic between client and server be-, cause the connection is dual channel and optical. Backups are also essential as a safeguard before upgrading a SQL installation, and they could be used to transfer a SQL installation to another system. K. Gao, L. Pan, J. Pei, H. Xu, Implemenation of EIDE Depending on business needs is assessed what recov-, ery model is needed. An, Download Free Sample Traditional theory and practice of write-ahead logging and of database recovery techniques revolve around three failure classes: transaction failures resolved by rollback; system failures (typically software faults) resolved by restart with log analysis, “redo,” and “undo” phases; and media failures (typically hardware faults) resolved by restore operations that combine, An approach to dealing with the contamination problem in the context of a simple model of a multi-process data base environment is described. %PDF-1.3 %���� These types of potential data loss make it critical to create a backup and recovery plan for your OpsMgr 2007 implementation. : – main memory, cache memory etc. Without the transaction logs the data files are useless in a recovery event. 24-29, 2004. 160-167, 2006. for disaster recovery, International Journal of Management. If the backup are carried out on one device should use the, In case that there is a separate file for each backup, and, In case of need to recover the database to the latest, parameter allow backup current transaction log state and, places database in recovery mode. If required to restore the database from. This paper suggests use of GPSS models as a tool to investigate a classical tasks in area of operation systems. 9, eds. rectly, but does not check data integrity: In the case of full recovery model backup transaction, log have to be created. Properties of a computer system providing for its ability to recover from disaster are determined by its architecture and implemented technical solutions.

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