SSD, (Solid State Drives)

SSD's have made a number for positive advancements have been made over the past few years.  The are cool, add no temperature to your system, silent, no physical movement parts may use less powers and are extremely rugged, some are able to withstand 20g, (20 times the gravity force on 3 axis, etc...).  SSD, are silent when operating.

SSD may have some problems at this time; they still have problems with data being writing to the same memory location causing failures, (most SSDrive have coding method of minimise this issue.) They are, at this time expensive for the same storage sizes as HHD, regular hard drives. They have lower storage capacity's than HHD, These problems are very likely to be overcome within the next year or two.  Note that it is said that traditional HHD's also produce errors quite often but the built in error checking codes correct these errors, (on-the-fly), as they are being used so users don't normally notice these errors.

SSD Defragmentation; This is not usually recommended for Solid State Drives. This is because the drive management software generally scatters the data throughout the storage medium to avoid rewriting to the same location repeatedly which could cause that memory cell to fail.  Unlike traditional HHD each memory cell has the same access speed anyway.

Solid State Drive technology is quickly developing and some of this information may be dated quickly; therefore only use a guide.

World's biggest solid state drive has 1.6TB capacity. Bitmicro announced today its plans to launch a new range of futuristic super-high-end 3.5-inch solid state flash drives. With capacities of up to 1.6TB (that’s 1600GB) they’ll be able to transfer data at speeds of up to 320MB every second. alled the ‘E-Disc Altima Ultra320 SCSI SSD,’ it doesn’t exactly have the most memorable of names. But what it does have is oodles of performance. It’s the world's first Ultra320 SCSI (small computer system interface) drive on the market, and as such it won’t come cheap. The largest commercial solid state drives currently have capacities of around 64GB (25 times smaller) – and they retail for as much as £700. A single 1.6TB SSD therefore might cost as much as several hundred thousand pounds, meaning the market for such devices is very niche. And as such, they're aimed at high budget organisations such as the military, and other demanding industrial enterprises. ( Techradar )

HyperDrive5 The fastest Internal Hard Disk in the World from a seek time perspective. 800x faster at finding files than a 10,000 rpm SATA WD Raptor WD740ADFD and 125x faster at serving files than a WD Raptor. It has less than 10 microseconds read access time and less than 10 microseconds write access time. It does not - as the best Flash SSDs claim - offer... 'RAM-like performance.'  a Solid State disk made not from Flash RAM but from DDR2. DDR2 is still hundreds of times faster than commercially priced Flash RAM at write IOPS. Although Flash drives have caught up as regards Sustained Transfer Rate. Flash drive specs rarely quote random write IOPS. But for database applications and software compilation and photoshop and video editing that is the real bottleneck It offers RAM performance. ( Hyperossystems )

Solid-state drives reach one terabyte (So storage sizes are already starting to catch up with traditional HHD's)
		Storage supplier pureSilicon has announced its Nitro Series of SSDs, with a maximum capacity of 1TB in a 2.5-inch format. The speed of the drive will be 300MBps when running through its SATA II interface, pureSilicon said in a statement. According to the company, the sustained read rate will be 240MBps and the sustained write rate 215MBps. By way of comparison, SanDisk claims an anticipated sequential performance of 200MBps read and 140MBps write for its SSDs.

Hard Rectangular Disk
		When it comes to storage for notebooks, desktops, and servers the new kid on the lock is the SSD. SSDs are slowly gaining on the incumbent HDDs in the vast majority of PCs and offers better performance, but at a greater cost.

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