3Com NSR-ORA V3.2 manual Archiving, System Administrator’s Guide U42252-J-Z915-1-76

Models: NSR-ORA V3.2

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Introduction

Archive Mode of the Database

NSR-ORA checks that the database is in ARCHIVELOG mode, and will abort the backup of the database if this is not the case if an online backup is to be car- ried out. An offline backup can be performed even if the database is not in ARCHIVELOG mode.

archive directory

database files

Oracles

 

 

archiving

control file

process

 

 

redolog files

SYSTEM USER

TEMP

Tablespaces

Figure 3: Database running in ARCHIVELOG mode

The database system deals only with archiving, it does not provide for the subsequent management of the redolog files. The database will come to a halt as soon as the archive directory is full. NSR-ORA therefore contains a module which monitors the archiving process, the archiving monitor amon. At regular time intervals, the daemon of the archiving monitor transfers the redolog files archived by ORACLE to external backup media.

To make a full database backup, all file types must be included in the saving procedure.

Both the control file and the database programs (executables) can be backed up using standard NetWorker functions (i.e. without NSR-ORA).

For securing the database files, NSR-ORA supports full backup as well as restoration and recovery of the database by reapplying the redolog files.

For a backup, a correlation is first made between tablespaces and database files. In this manner, the logical tablespace concept of the database is mapped onto a physical structure, and the database files are then backed up. In the case of an online backup, the ORACLE-specific commands begin backup and end backup are included.

When a recovery is required, shutdown of the database is followed by a crash analysis. If a database file has been lost, the required backup files are first restored from the backup medium. The recovery of the database is subse- quently commenced; this involves reapplying the appropriate redolog files. If

System Administrator’s Guide

U42252-J-Z915-1-76

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3Com NSR-ORA V3.2 manual Archiving, System Administrator’s Guide U42252-J-Z915-1-76

NSR-ORA V3.2 specifications

The 3Com NSR-ORA V3.2 is a versatile networking solution designed to enhance connectivity and streamline data management across various enterprise environments. With the rapid evolution of digital communication, 3Com recognized the need for a robust system that caters to the demanding requirements of today's businesses. The NSR-ORA V3.2 is specifically engineered to provide optimal performance, scalability, and reliability.

One of the standout features of the NSR-ORA V3.2 is its integrated network processing capabilities. This device employs advanced multi-layer switching technology that significantly boosts data throughput while maintaining low latency. This is particularly advantageous for organizations that rely on real-time data transmission for critical applications, such as VoIP and video conferencing. The ability to process large volumes of data efficiently ensures that businesses can operate seamlessly without disruptions.

Another key characteristic of the NSR-ORA V3.2 is its support for a wide range of networking protocols. The device is compatible with both IPv4 and IPv6, allowing businesses to transition smoothly to newer network architectures without the need for significant reconfiguration. This dual-stack capability not only enhances network flexibility but also future-proofs investments as organizations look to scale and adapt their digital infrastructure.

Security is at the forefront of the NSR-ORA V3.2's design. The device incorporates advanced security features such as firewall protection, intrusion detection, and secure VPN capabilities. These components work together to safeguard sensitive information and ensure that data integrity is maintained across the network. In addition to these features, the device offers comprehensive management tools, allowing network administrators to monitor performance and manage access controls more effectively.

The NSR-ORA V3.2 also excels in its interoperability with various devices and platforms, making it an ideal choice for enterprises that utilize a mix of legacy systems and modern technologies. Its compatibility with both wired and wireless networks provides businesses with the flexibility to design an infrastructure that meets their specific operational needs.

In summary, the 3Com NSR-ORA V3.2 is a powerful networking solution that combines advanced processing capabilities, robust security features, and a high degree of compatibility with diverse systems. Its emphasis on performance and scalability makes it a compelling choice for organizations seeking to enhance their network infrastructure in an ever-evolving digital landscape.