S.M.A.R.T technology concept


Self-monitoring, analysis and reporting technology (S.M.A.R.T) is widely used to disks to protect data security. When disks are working, the monitoring system analyzes the states of motors, circuits, disks, and heads. When an exception occurs, an alarm will be generated and automatic speed-down and data backup may be implemented.

Other related questions:
What is Beamforming
The beamforming or Transmit Beam Forming (TxBF) technology produces the strong directional radiation pattern based on the strong correlation of the spatial channel and wave interference principle, making the main lobe of the radiation pattern adaptive to point to the wave direction. This technology improves the SNR, system capacity, and coverage range. Beamforming or TxBF is an optional feature in the 802.11n standard. Beamforming includes explicit beamforming and implicit beamforming. Explicit beamforming requires the receive end to send information about the received signal to an AP. The AP then adjusts the transmit power to the optimal value according to the signal information. This function increases the SNR of the receive end and improves the receiving capability. Implicit beamforming allows an AP to automatically adjust the transmit power to increase the SNR of the receive end based on channel parameters without requiring the receive end to work with the AP. Currently, mainstream terminals do not support beamforming.

What is MRC
The maximal ratio combining (MRC) technology improves the signal quality of the receive end. In MRC, the same signal from the transmit end is received by the receive end through multiple paths (multiple antennas) because the receive end receives this signal using multiple antennas. Generally, among multiple paths, there is one path providing better signal quality than the other paths. The receive end uses a certain algorithm to allocate different weights to receiving paths. For example, the receive end allocates the highest weight to the receiving path providing the best signal quality, which improves the signal quality of the receive end. When none of multiple receiving paths can provide better signal quality, the MRC technology can ensure better receive signals.

Dynamic disk concept
A dynamic disk is a physical disk that is upgraded and managed by the Disk Manager. It does not use partitions or logical drivers, but only contains dynamic volumes created by the Disk Manager. Dynamic disks can be accessed by Windows 2000 operating system.

What is the concept of Tomcat?
Tomcat is a free-of-charge, lightweight, open source web application server developed by Apache Software Foundation, Sun and other companies, and individuals. Gaining support from Sun, Tomcat complies with the latest Servlet and JavaServer Page (JSP) specifications. It features advanced technology, stable performance, and good scalability, and occupies a small number of system resources during running. As a result, Tomcat applies to small- and medium-sized systems and scenarios with a few concurrent users. An HTTP server embedded in Tomcat enables Tomcat to work as a web server. It provides a configuration management tool and supports XML configuration files. Tomcat is different from the Apache web server, which is an HTTP server using C language.

Definition of FusionInsight
Huawei FusionInsight is an enterprise-class platform that integrates data storage, queries, and analysis. It allows enterprises to quickly construct a system for massive data processing. Based on the real-time and non-real-time analysis and mining of massive volumes of data, FusionInsight helps enterprises obtain values from this data, identify vulnerabilities, and make decisions upon opportunities in a timely manner.

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