Technology: How to select the server solid state drive?

Solid-State http://www.aliyun.com/zixun/aggregation/18673.html "> Hard disk storage is currently playing a leading role in addressing the performance challenges facing data centers. The problem for users is how to use these storage capacity and where to use them to get the most out of a modest investment. We have a dazzling range of feasible solutions on the market, and we are here to sort these challenges. In the first sequence we will explore the solid state drive for the server.

The configuration of solid-state drives in the server is already a common option, especially if there is a performance problem with a small percentage of servers. Solid-State drives can help users solve server performance bottlenecks. Solid-State drives also allow high-speed storage to be closer to the processor and remove the potential bottleneck of a shared storage network. There are currently three solid-state hard disks in the form of standards: HDD-driven SSD,SSD DIMMs and PCIs SSD.

Hard drive solid-state drives look and function like mechanical hard drives, just without pins. This is one of the first solid-state drives that are widely used and can be upgraded. Installing solid-state drives, copying data and re-import through solid-state drives can easily improve speed.

The hard drive SSD family is now adding SSD DIMMs, as we discussed in the latest article, "SSD dimm-new Selection," which can be installed in the server's dual-column inline memory module slots and is really similar to a mechanical hard drive, Can be connected to the system through standard SAS or SATA media. This type of connection can be an ideal boot device. This can be limited by the speed of the media connection, but for many application environments, this is the performance improvement they need.

PCI SSD is another server for the choice of solid-state drives, is quickly recognized by users and the market. As its name implies, this is a solid-state drive connected through a PCI bus. So you can access the CPU directly through a high-speed channel, which gives you a very high-performance choice. Although most PCI can not be booted, they are extremely demanding for high performance, but SATA bandwidth is not enough to meet the performance requirements of the application software is the ideal choice.

The PCI solid-state drive can also be chosen as a low-cost dram memory. A 1TB SSD can be used as memory to replace the dynamic random memory configured in 100 servers, thus enabling greater performance improvement.

The server chooses which solid-state drive to configure depends on what performance problems the user needs to address and what kind of solid-state drives the server is suited to install. Many PCI SSDs require a sufficient volume of PCI slots, and most 1U and 2U servers are not satisfied. In these cases, a hard drive SSD or SSD DIMM is the better choice, or even the only choice, depending on whether there is a hard drive or a dual-row inline memory module available.

A server that configures solid-state drives can be used for a variety of purposes or as a complement and reinforcement of a shared storage infrastructure, rather than as a substitute. In our next chapter, we will focus on more ideal application cases, including importing, caching, space, and using solid-state drives to replace dynamic RAM memory.