Structured Storage

Relative to structured data (the data is stored in the database, it is possible to use two-dimensional table structure to express the implementation data logically, the data that is not convenient to use the database two-dimensional logical table to represent is called unstructured data, including all format Office documents, text, picture, XML, HTML, various kinds of reports, images and audio/ 　　Video information and so on. An unstructured database is a database with a variable field length and a record of each field that can be made up of repeatable or repeatable child fields, not only to handle structured data (such as numbers, symbols, etc.), but also ...

The storage system is the core infrastructure of the IT environment in the data center, and it is the final carrier of data access. Storage in cloud computing, virtualization, large data and other related technologies have undergone a huge change, block storage, file storage, object storage support for a variety of data types of reading; Centralized storage is no longer the mainstream storage architecture of data center, storage access of massive data, need extensibility, 　　Highly scalable distributed storage architecture. In the new IT development process, data center construction has entered the era of cloud computing, enterprise IT storage environment can not be simple ...

Non-structured data access for cloud storage Xie into Chen Xiangdong unstructured data is exploding, and existing storage technology needs to be improved in the aspects of I/O throughput capability, scalability and manageability. Based on the theory of cloud storage and reliability, the storage system establishes a distributed storage model of unstructured data and designs a reliability function. The Distributed relational database management system (RDBMS) is used as the storage base, and the unstructured data is stored directly in the data table, which realizes the separation of unstructured data and metadata.

Decentralized structured storage System--cassandra Li Yu Cassandra is a distributed storage system that can be used to manage huge amounts of structured data distributed across a large number of inexpensive server systems, while providing high availability services with no single point of failure. Cassandra is designed to run on an infrastructure consisting of hundreds of nodes, which may be distributed across a number of different data centers, and when the nodes reach this size, a large and small component failure can occur frequently. Cassandra face these failures when managing persistent state ...

Cloud storage has a direct or indirect relationship with the IT Hot word "big data", which has been booming in recent years. The explosive growth of structured, especially unstructured data, not only makes businesses feel the pressure of "data storage", but it also prompts them to start thinking about how to grab opportunities in large data. Cloud storage Global outbreak, a profound impact on traditional markets, in the future development process, cloud storage development will still be subject to certain constraints. The global outbreak of cloud storage has a profound impact on traditional markets with the rapid development of cloud storage, the challenge of massive storage is becoming more and more serious. Explosive growth of the vast numbers of data just as the tide of impact on them ...

The industry defines cloud computing in a variety of ways, but, as seen from several well-known cloud computing models, storage is a fundamental support component that is not in any way open, and cloud storage, as one of the branches of cloud computing services, mentions storage as the primary location. 　　At the same time, there are not many vendors who can solve storage problems well in the underlying architecture, and storage is facing a number of bottlenecks to achieve cloud computing. At an Intel Media training camp, Intel (China) Limited server platform Product manager Chang said: "Today we talk about cloud computing and virtualization in the cloud architecture ...

is direct-attached storage obsolete? Direct-attached storage is what we often call Das (direct-attached storage), usually the storage media that is installed inside the server or installed in an expansion enclosure directly connected to the server. There must be a fixed binding connection between the DAS storage and the server, so there is no network structure between them, but direct data read and write. Das has been considered a inefficient structure in the way servers and storage are connected, and it is not convenient for data protection. Direct-attached storage cannot be shared, so often out of ...

The previous article is about the table storage of Azure Service, this article is mainly aimed at the other kind of special storage-binary in azure, such as unstructured storage, if our Azure services need to save non-traditional or structured data, such as pictures, audio and video media, etc. Then we need to use the BLOB storage. 　　The Windows Azure platform provides a good hosting platform and programming model. Blob storage differs from Azure table storage in terms of concept, before we see table storage being the heaviest ...

With the wide application of server virtualization, cloud computing technology has become the next direction of utility computing, in the era of cloud computing, we can consume computing resources like power resources and pay on demand. Cloud storage applications are derived from Amazon's S3 services (simple Storage service) and are quickly emulated by other service operators. However, poor performance and concerns about security are always shrouded in cloud storage, which has eclipsed many of its benefits and hindered the technology's entry into the mainstream ...

This series of articles is a learning record about the fundamentals of azure services development, and because of time constraints, the process of wishing to discuss and explore yourself is from scratch, to be able to develop basic programming for azure services. There may be a very deep topic relative to each topic, and I would like to have time to do it through other articles. 　　The positioning of this series is basically positioning, take 20-30 minutes, download the code first, follow the article, run to get the relevant experience. The previous article is about Azure queue storage, this is about ...