DB administration

8.2 DB administration

The database system INFORMIX Dynamic Server 2000 Version 9.2 is used for data storage within the Persistency Service. This results in a range of tasks for DB administration which can be completed with the aid of appropriate utilities. As already described, the transaction monitor and the database are synchronized by the XA protocol. It must be ensured that this link is supported in the current installation.

The main tasks in operating the database lie in the area of precautionary backup and tuning in the distribution of data on the available storage media.

In this case too, knowledge is required of the respective service functions in the database system, which are described in the relevant manuals.

8.2.1 Security management

The database system allows you to log events in an audit procedure in order to obtain infor- mation on the activities of users or user groups, particularly in relation to attempts to acquire rights for themselves or others. The ID of the database administrator (informix) should always be monitored by the audit function. In Version 9.2 of INFORMIX Dynamic Server 2000, the functionality of the database administrator can also be distributed over a number of roles in order to improve the separation of administration and security functions. The actual steps involved are described in the relevant manuals [21]. Moreover, access rights to database objects (tables, procedures) can be assigned on the level of the GRANT and REVOKE function. A precise description can be found in [16].

8.2.2 Data backup

This aspect is concerned with the use of backed up data to fully or partially recover a data- base which can no longer be used due to the failure of a disk drive, for example. This type of backup archive is created and subsequently recovered with the aid of utilities which are provided by the database system.

The task of the database administrator is to minimize the effort involved, whilst working on the basis of restoring a database securely. The backup can be installed as an automatic process, whereby utilities of the INFORMIX database system, such as onarchive, can be used in conjunction with onautovop.1)

An important function in increasing availability lies in the use of RAID memory or in the uti- lization of the database function to mirror disk areas (chunks).

1)The dbexport and dbimport commands from INFORMIX-OnLine do not back up the full information on the status of the XA interface.

You should therefore never use these commands to back up data.

194

GINA V4.0 System Administrator Guide – September 2000

Page 205 Page 207
Page 206
Image 206
Siemens V 4.0 manual DB administration, Security management, Data backup
Page 205 Page 207

V 4.0 specifications

Siemens V 4.0 is an advanced digital platform designed to enhance operational efficiency and streamline processes in various industries. It embodies the principles of Industry 4.0, leveraging cutting-edge technologies to create a more connected, intelligent, and automated manufacturing environment. This platform integrates data-driven insights and advanced analytics to facilitate informed decision-making and improve productivity.

One of the main features of Siemens V 4.0 is its ability to provide end-to-end visibility across the manufacturing value chain. By connecting machines, production lines, and supply chains through the Internet of Things (IoT), Siemens V 4.0 enables real-time monitoring and control. This connectivity allows companies to identify bottlenecks, reduce downtime, and enhance overall operational performance.

Another key technology embedded in Siemens V 4.0 is artificial intelligence (AI). AI algorithms analyze vast amounts of data generated throughout the production process, enabling predictive maintenance and optimizing production schedules. By anticipating equipment failures and streamlining operations, businesses can achieve significant cost savings and minimize disruptions.

Siemens V 4.0 also emphasizes the importance of automation and robotics. By integrating robotic process automation (RPA) into manufacturing workflows, companies can achieve higher levels of efficiency while reducing human error. This automation not only speeds up production times but also allows workers to focus on more complex tasks that require human ingenuity.

Additionally, Siemens V 4.0 supports advanced simulation and digital twin technology. Through the creation of virtual models of physical assets, manufacturers can simulate different scenarios, identify risks, and optimize design processes before implementation. This capability accelerates innovation while minimizing waste and resource consumption.

Another important characteristic of Siemens V 4.0 is its scalability. The platform can be tailored to meet the unique needs of various industries, from automotive to pharmaceuticals. This flexibility ensures that companies of all sizes can leverage its capabilities, driving global competitiveness.

In conclusion, Siemens V 4.0 is revolutionizing the manufacturing landscape through its comprehensive suite of features, including IoT connectivity, AI-driven insights, automation, and digital twin technology. By adopting this platform, businesses can transition toward more efficient and sustainable operations, ultimately preparing them for the future of industrial production.
Top Page Image Contents