Enterprise-class purchase of solid state hard drive four points advice

Practical recruit one: specific speed

The biggest advantage of SSD is high speed reading and writing speed. Traditional hard drive lane speed in the reading and writing 70m/s, and professional enterprise-level SSD can reach read and write 120m/s above, random read and write speed, ioPS read is hard drive about 100 times times, write is about 10 times times.

Solid-state hard disk speed is mainly to look at two indicators: first, random read and write speed, that is, small file reading and writing speed. Second, continuous reading and writing speed. The focus is random speed, because the continuous read and write speed is only reflected in the large file read and write, this application is very small.

Practical recruit two: specific energy consumption

Solid-state hard disk energy saving and environmental protection is widely favored by enterprise users. Because there is no rotational friction between the rotating head and the disc, the solid-state hard disk has a small calorific value and fast heat dissipation, and its energy consumption is only 1/5 of the traditional hard disk. According to foreign experts report, in the notebook computer, the solid-state hard disk energy consumption is only equivalent to the traditional hard disk half. As a storage solution in the enterprise environment, a solid-state hard disk can replace a lot of traditional hard disk, the expected energy-saving effect will be more significant. Like the data introduced by the Czech Republic of professional products extremely save electricity, an SSD work about 3W, while the HDD is about 15-17w, an SSD than the HDD about five times times the power. An SSD may not save much electricity, while an enterprise-class user with dozens of, hundreds of SSD savings in the electricity bill is considerable.

Practical recruit three: than cost

Enterprise-Class Professional SSD for the server will greatly reduce the cost of the enterprise, specific performance in the following points:

1 cost savings: In order to meet the application of the increase, the usual solution is to add more CPU, traditional storage systems and bandwidth. This will result in expensive cost to the user.

2 The cost of IT infrastructure is reduced: The SSD product lives for more than 10 years and can be configured and managed by any existing operating system and resource management program.

3 Increase in revenue: due to the reduction of the corresponding time of online applications, increased transaction real-time, so that the increase in trading volume, to bring growth to users, but also to give users a 0 waiting experience.

Practical recruit operation four: life expectancy

Different brand SSD life difference is also very big. Due to the limited number of MLC written, so for SSDs, life is more important.

Enterprise-Class User procurement SSD in terms of life mainly look at three points:

First, to have a balanced writing strategy, is to write every time in the use of the least number of flash blocks. This function is said by every manufacturer, so you are invisible and can only obey.

Second, the point is very easy to identify, that is to have the cache. This general specification is written in the cache and cache size, because the cache can reduce the number of writes directly to Flash, and there is no caching can be several times the life difference.

The third is the number of channels used. The current SSD mainly has eight channels, 10 channels, four channels, if you choose the SSD speed performance to meet your requirements, then the less channel number, SSD life will be longer, this needs to check the selected SSD brand specifications.

In addition, the current market of SSDs is divided into MLC SSD and SLC SSD two categories, SLC than the MLC SSD several times. SLC has a longer life and better writing performance, while reading life and reading performance are almost as good as MLC, and high-end servers or special military computers should choose SLC SSD. The key point of purchasing solid state drives for enterprise users is to see the application tailored to the situation, that is, if you read more and write less, choose MLC, and in turn you should choose SLC.