Cloud storage technology cloud storage technology and traditional storage technology

Due to the huge number of users, the number of files to be stored in the storage system will increase exponentially, which requires the capacity expansion of the storage system to keep up with the growth of data volume and realize unlimited expansion. At the same time, it is best to be simple and easy in the expansion process without affecting the overall operation of the data center. If the expansion requires complicated operations or even downtime, it will undoubtedly greatly reduce the operating efficiency of the data center.

In the era of cloud, the storage system needs not only capacity improvement, but also performance improvement. Different from the limited users in the past, in the cloud era, the storage system will face a wider user base. With the increase of the number of users, the storage system must also improve its throughput performance rapidly. Only in this way can we respond to requests quickly, which requires the throughput performance of storage system to increase linearly with the increase of capacity, which is obviously beyond the reach of traditional storage architecture.

Because the traditional storage system doesn't use distributed file system, it can't distribute all the access pressure to multiple storage nodes evenly, so there is an obvious transmission bottleneck between storage system and computing system, which brings many subsequent problems such as single point of failure, and cluster storage is the best medicine to solve this problem and meet the requirements of the new era.