sonet systems

As a saying, I would like to give some suggestions to students eager to learn embedded systems: (1) the software and hardware of embedded systems are closely related, so we must lay a solid foundation for software and hardware. In fact, as long as you find the correct method and work hard, any science and engineering students, or even non-science and engineering students, can learn embedded

A file system is a directory structure that includes storage devices or partitions. Generally, an application storage device can contain one or more file systems. Generally speaking, a file system stores files or data in an organized manner, with the aim of making it easy for the operating system to query and access data. Common file systems include FAT3, NTFS, Ext3, and Reiserfs. However, different operati

Address: http://www.cnblogs.com/ibook360/p/3159544.html 1. Background Many companies' platforms generate a large number of logs (generally stream data, such as search engine PVs and queries) every day. to process these logs, a specific log system is required. Generally, these systems must have the following features: (1) build bridges between application systems and analysis

the metadata information. Obviously, the larger the file system to be detected, the longer the detection process takes. For partitions with a size of dozens of G, it can take a long time to detect. As Linux starts to be used for more and more important applications in large servers, it is becoming more and more intolerable for long time machines. This requires more sophisticated and sophisticated file systems to replace Ext2. Therefore, the log-file

Beginner: Let's talk about Linux's file system-general Linux technology-Linux technology and application information. The following is a detailed description. If you are a newbie, maybe you still don't know how to copy files from Windows to Linux? Next, we will describe the Unix File System and mount process, and then discuss it in detail. The usage of mount and related options. If you know how the Unix file system works, skip the following section. Otherwise, you 'd better continue to learn the

Because of the hardware configuration, Internet cafe machines install different operating systems based on the hardware configuration of different machines. At present, Internet cafes have seen coexistence of Windows 98, Windows 2000, and Windows XP operating systems. In the face of these operating systems, interconnection has become a major challenge. When works

Differences between the levels of integrated wiring systems In general, the levels of Integrated cabling systems are divided into three types: integrated, enhanced, and basic. So what are the differences between the three types? Level 1: Comprehensive The integrated architecture is suitable for scenarios with high configuration standards in the Integrated Wiring System. It uses optical fiber cables and co

Before giving you a detailed introduction to the structured cabling system, let's first take a look at the introduction and development of the structured cabling system, and then give a comprehensive introduction to the structured concepts and questions about the testing of the structured cabling system, I hope you will understand the structured cabling system after reading it. 1. Introduction to structured cabling systems With the rapid development o

Research on Embedded Linux-Kernel configuration solutions for several typical systems-general Linux technology-Linux programming and kernel information. The following is a detailed description. Summary This article mainly introduces several methods to reduce Linux core, which can be used for core configurations of embedded systems and embedded servers. -------------------------------------------------------

discipline that describes linear change, the main means is matrix multiplication. So they contacted nature closely.Matrix multiplication is a linear system.All linear systems can be expressed as matrix multiplication. This conclusion is very imba, think of engineering research, are all kinds of model systems, and these systems are basically linear system!!! So,

massive video data, reliable and secure data protection capability, and flexible and convenient space expansion capability. In the face of the challenges posed by the above high-definition storage, let's take a look at the storage solutions:　I. node-type Storage SystemThe node nvr architecture is mainly designed for small HD monitoring systems. The number of HD front-ends is generally less than dozens of channels. There is no large data center for st

The basic purpose of a good backup is to be able to recover from some errors: Man-made mistakes Disk array or hard drive failure File system crashes Data center is corrupted and so on. So, I've listed some open source software backup tools for everyone.What do you think about when choosing a backup tool for an enterprise?Make sure that the software you are deploying has the following features Open source software-You must choose the software that the source code can

interfaces help us quickly use email as a personal application. These days, commercial-level email applications that use the traditional HMTL interface no longer appear. Outlook Web Access (although there is a wonderful Ajax interface) is not really popular for some reasons, but Gmail and Zimbra are surfacing, and Zimbra is ready to replace both Outlook and Exchange, It publishes a fully browser-based UI. For Microsoft, they proactively released a new Aajax-based eamil client that would be bett