The characteristics of SSD/SATA/SAS

The hard, I believe we all understand. Hard disk of our most common is ourPC, the hard disk can not only support the operation of the system, but alsoour data storage.

Under normal circumstances, the personal computer hard drives are the traditional hard disk, also known as mechanical hard disk. The harddevelopment for a long time, now in terms of technology, technology and product price are very good performance, is the main storage medium at present, both for individual users, or business users, mechanical hard drives are the first choice for most people.

But as people growth on storage performance demand, the traditional hard disk also gradually develops, changes, and is the biggest change interfacenow, according to the different mechanical hard disk interface is divided intoSAS hard disk and SATA disk.

With the increasing volume of business, people found that changing the interface simple and is difficult to store performance to enhance the quality of. So, to NAND flash memory chip to store the core SSD, his appearancehas greatly improved the performance of the storage system, improve thestorage environment.

Although SSD has a better performance, but the present only in the initial development stage, there are many environment needs improving. For example, the price, compared to the traditional hard drives are more expensive, in terms of stability and security, SSD has not obtained the majority person's approval. So, if for different business appropriate hard disk? We may wish to look at the options below.

The deployment of the hard disk standards

The deployment of hard drive standard, and choose other types of disk technology, does not have what different. Our choice should always focus on three main factors: price, performance and capacity.

The cost of SSD is much higher than SAS, SSD is about ten times that ofSAS, while SAS is much higher than SATA.

Continuous I/O performance of SSD can reach 40 to 60 times of SAS and SATA.

Standard capacity SSDs has increased to 600GB, but still far lower than that of SAS and SATA.

Therefore, when the enterprise business demand for performance than thefactors of cost and capacity, SSD is the best choice. Particularly suitable foroften require the highest random read and write performance of the most critical business applications.

In some cases, the application can greatly reduce data center space and storage cost of SSD in enterprises, while reducing power consumption andcooling demand. The past need hundreds of SAS driver solution may require little SSD can well meet.

But SSD's too little space is a lot of users care about, thin provisioning and hierarchical automation products for the deployment of the SSD is veryimportant. Thin provisioning can improve the utilization of SSD capacity,automatic hierarchical ascension requires maximum performance data to the SSD, and lower the requirements is not high data to SAS or SATA.

The characteristics of SSD/SATA/SAS each are not identical, users will have to consider, in the choice of when the price, performance, andcapacity are factors that can not be ignored, of course, choose what kind ofproducts also need what you care about most.