Newsflash
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After the good job that we have done with this site in the past 2 months, we have decided to sell onemileaway.com and all its content. At this moment the website produces several unique visitors per month, and has an Alexa rank of 1,069,434 . The traffic is still increasing everyday due to the SEO-strategies we have applied. This is an excellent opportunity for everybody who would buy a site already launched. The price is only 20.000$ and it is negotiable. Email us if you are interested. Thanks. |
| SSDs: what are they? |
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| Written by bluewitch | |
| Tuesday, 22 January 2008 | |
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The acronym stands for Solid State Disks and if you surf the Internet you will find that most web definitions describe an SSD as a high-performance plug-and-play storage device that contains no moving parts. The absence of mechanical arms and spinning platters is the reason behind its reliability, its strong reduction of power consumption that makes it the ideal solution for mobile devices, such as PDAs, notebooks, etc. and its lower heat generation. Now we must say something about the structure of an SSD and list its differences comparing it to a traditional HDD. The storage medium is not magnetic (like a hard disk) or optical (like a CD) but solid state semiconductor. This provides faster access time than a disk, because the data can be randomly accessed and does not rely on a read/write interface head synchronising with a rotating disk. The SSD also provides greater physical resilience to physical vibration, shock and extreme temperature fluctuations. This feature is very important in industrial applications where exposure to highly combustible materials and electromagnetic radiation are typical. It provides the type of ruggedness required for mobile applications, too. SSD components include either DRAM or flash memory boards, a memory bus board, a CPU, and a battery card. Because they contain their own CPUs to manage data storage, they are approximately 100 times faster than a rotating disk and they produce highest possible I/O rates. So SSDs are most effective for every application, where I/O response time is trivial (databases, authorization and login information…). Flash-based SSDs certainly fit the storage needs of most embedded systems that require much smaller form factors, as well. And Flash SSD manufacturers employ different ways to increase the longevity of the drives, too. This reduces performance lag and avoids further wearing off of the blocks and thrashing of the disk. The only downside is a higher cost per megabyte of storage. |
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