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Posted: 14 Mar 2011 12:54 AM PDT
A solid-state drive (SSD), also called a flash drive, is type of hard drive. Though the architecture of an SSD is quite different from traditional hard drives, the name is carried over. An SSD utilizes a special kind of memory chip with erasable, writeable cells that can hold data even when powered off. It might help to think of an SSD as the larger cousin of the memory stick.Like standard drives, an SSD utilizes a special area for cache memory.
Cache memory serves the function of increasing processing speeds by holding data that is needed repeatedly. With the data close at hand in the cache, it does not need to be fetched from the main storage area each time it’s called.
Some SSDs use cache that is volatile, as in synchronous dynamic random access memory (SDRAM), while others use non-volatile cache. The former requires a power source to retain data, just like computer RAM. The
latter type retains data even without power.
An SSD has many advantages over a traditional drive. Seek time is decreased significantly, making the SSD very fast. Being sold-state, the drive has no moving parts to malfunction, and does not generate significant heat. It is also lighter than a standard drive, more power efficient, and completely silent. Finally, the SSD is more durable. If dropped or banged it isn’t as likely to be damaged.
There are, however, disadvantages to an SSD over a standard hard drive. Most SSDs have a slower write time than standard drives, although this can vary, depending on the type of flash memory used and number of chips. Standard drives are also relatively less expensive than SSDs, although the price has fallen. The SSD also has a limited life expectancy of erase/write cycles, after which it no longer performs reliably. A hard disk may be able to deliver a good ten years of solid operation.
Many people in the field believe that flash drives or SSDs will eventually replace traditional hard drive technology. By the time this happens, the disadvantages will likely have been eliminated or significantly mitigated. Even today, an SSD can extend the life of a notebook battery, decrease the weight of the machine, make it quieter, and increase read performance.
Expensive vs Firmness
Unfortunately, the general theory still applies here. The performance of these fast you have to pay a high cost. The price per capacity of an SSD is still very high. However, for those who’ve never felt the increase in performance, there would appear a pang of mind to buy an SSD. Price range that will be seen here starting from the number below eight hundred thousand dollars. It is slightly encouraging because the price is already down. Previously we would not find an SSD under the price of one million dollars.
SSDs at a price below USD. 900.000 ($ 100)
Super Talent 32 GB VSSD
Super Talent 32 GB SSD VSSD is the cheapest we found in the Indonesian market. SSD also has supported the TRIM function. Promised to the reading speed up to 150 MB / s.
SATA, or Serial ATA is the current popular choice of hard drive interface for desktop systems. SATA-300 is the current standard, and is capable of transferring 300 Megabytes per second. While SCSI drives are capable of faster transfer speeds, the drives, bus controller, and cables are much more expensive, relegating their use to servers and applications where transfer speed is an absolute must. Note that if you are shopping for an upgrade to a system that is a couple of years old, it may not support SATA-300, and not operate at its full potential.
Super Talent VSSD brings performance and solid-state technology together at an incredible price. By upgrading to VSSD from traditional hard disk, shorter OS booting up time, faster application loading, less system power consumption can be expected. The VSSD is capable of sequential read speeds up to 150 MB/sec and sequential write speeds up to 100 MB/sec.
Kingston 30 GB
Kingston is one of the SSD has a price below $ 100. Performance is very good. But what must you notice, some shops sell this one SSD with a pair of packages to be installed in RAID mode
Simply recognizing and accepting the TRIM command is one thing, what the drive’s controller and firmware choose to do with the data is another entirely. Some drives, like Intel’s X25-M and X25-V, appear to
immediately flag all TRIMed LBAs for cleaning. This results in an immediate restoration to almost new performance when writing to those LBAs. Other drives, like those based on Toshiba’s T6UG1XBG controller,
don’t show an immediate performance benefit when TRIMed. It’s unclear what the controller is doing with the TRIM information, but it doesn’t seem to be in a hurry to do anything with it.
Nova Series Corsair 32 GB
They cost a little more expensive than the SSD from Kingston, but its performance is better. SSD has also supported TRIM.
The 32GB Nova Series SSD is the perfect mix of performance and value for use as a boot drive for basic configurations, and can also be used in high-performance multi-drive RAID configurations. The 256GB Nova
Series SSD is an excellent choice for systems that need both high performance and large capacity. Both drives utilize the popular Indilinx Barefoot controller. The 32GB and 256GB Nova Series SSDs are available immediately from Corsair’s authorized distributors and resellers worldwide and are backed by a two-year limited warranty.
Detailed specifications:
Product code : SSDSA2M040G2R5
Flash : 34nm NAND
Architecture : MLC
Form Factor : 2.5″
Capacity : 40GB
Interface : SATA 300
Power Consumption (Active) : 150 mW
Typical Power Consumption (Idle) : 75 mW
Typical Sequential Access : Read up to 170MB/s
Sequential Access : Write up to 35MB/s
Features Random : 4 KB reads up to 25 K IOPS, random 4 KB writes up to 2.5 K IOPS
Read Latency : 65 microseconds
Write Latency : 110 microseconds
MTBF : 1,200,000 hours
Manufacturer Warranty : 3 years
Super Talent 64 GB UltraDrive GX
SSD price of this one almost on the verge of the limit price range. If seen, this one wearing SSD SandForce chipset. Of course, owned very good performance.
Team Xtreem G1 60 GB
SSD also has a very good performance while not wearing SandForce chipset. The manufacturer claims that the SSD is capable of running at a speed of 230 MB / s for read and 130 Mb / s to write.
Mushkin Callisto 60 GB
SSD this one is approaching the upper limit of price range. Chipset already wearing SandForce so that its performance can achieve 285 MB / s for read and write speed is up to 275 MB / s.
Mushkin Callisto 90 GB
Just like its 60 GB version, this version also uses a high-performance chipset SandForce. The difference is only in its capacity only.
Specifications:
Capacity : 90GB
Dimensions : 99.88mm x 69.63mm x 9.50mm
Temp. Range : 0-70ºC
Read Speed : up to 285MB/sec
Write Speed : up to 275MB/sec
Shock Tolerance : 1500G
Vibration : 20G Peak, 10-20kHz, 3 axis
MTBF : 2 million hours
Controller : SandForce SF-1200
Interface Type : SATA II (3Gb/s)
Warranty : 3 years limited
IOPS : up to 50,000 IOPS with 4kb Random Write
Key features:
* Optimized for reliable caching and data flow
* Approved by the elite SandForce Driven quality program
* Designed for continued reliable function, even when things get a little rough
* TRIM Support when used with compatible operating system
G Skill Phoenix Pro 120 GB
Gskill has a chipset SandForce SSD with a capacity of 120 GB. SSD which one is suitable for you who want the excess capacity.
Corsair Nova series CSSD-BRKT-V128GB2
In this price range if you want to find a SSD with a capacity of slightly more relieved than Phoenix Pro Gskill above, Corsair Nova could be an alternative.
The 128GB version which offers the same sequential read speeds of up to 270MB/s but the sequential write speeds are increased to up to 195MB/s. Both drives also are built using the 2.5 inch form factor and use the SATA II interface. The Nova series uses MLC NAND Flash Technology which stands for Multi-level Cell which lets more bits per cell to be saved and reduces the overall cost of the drive. The particular model we are going to be looking at today is CSSD-V128GB2-BRKT which is the 128GB Nova Series Solid State Drive
from Corsair.
Pros:
• Very fast performance especially during read benchmarks
• Indilinx Barefoot Controller
• 64MB Cache
• TRIM Support with Windows 7
• 3.5″ adapter included
• Maximum sequential read speed 270MB/second
• Maximum sequential write speed 195 MB/second
• 64GB and 128GB sizes
Cons:
• Slower 4K write speeds
Super Talent UltraDrive GX 128 GB
SSD is also using the chipset SandForce and a capacity of 128 GB. In this price range, the Super Talent Ultra GX is a SSD Drives 128 GB chipset SandForce an affordable price.
Gskill Falcon II 128 GB
SSD with Indilinx chipset also has a SSD with a capacity of 128 GB in this price range. Comparison of price per capacity of this makes it quite affordable in this price range.
Model Name : FM-25S2S-120GBP2
Controller : SandForce SF-1200 Series
Form Factor : 2.5″
Capacity : 120Gb
DRAM Cache : N/A
Interface Type : SATA II
Performance Specifications
Read Rate : 285MB/sec(Max)(Tested with ATTO 2.43)
Write Rate : 275MB/sec(Max)(Tested with ATTO 2.43)
IOPS : Up to 50000(disk aligned ; 4KB random write)
Access Time : <0.2ms
Environmental Specifications
Shock (operating) : 1500G
Vibration (operating) : 15G
Altitude (operating) : 60000ft
Operating Temp. : 00C ~ +700C
Reliability Specifications
MTBF : +2,000,000 Hours
Data Reliability : Built-in EDC/ECC function
Certifications : RoHS FCC and CE Compliant
Warranty : 3 years
At this price category, you try to choose such a high capacity SSD with 180 GB and above. There are several SSD products are still selling at high prices but its capacity will still be in the range of 100 GB. SSDs are mostly wearing SandForce and Indilinx chipset. Surely we can not recommend the purchase of SSDs with a capacity under 180 GB in this category. You can buy two 64 GB SSD size in the range of prices USD. 1.3 million and paired in RAID-0 mode so as to provide better performance.
Tips On Buying SSD
Price per Capacity
You must be keen in attention to the price of SSDs. SSD at affordable prices can you see by way of share price with the capacity it has. We get a few SSD with Chipset SandForce and Indilinx who appears to have
a fairly affordable price.
TRIM
TRIM function is very important in the use of an SSD. This causes the performance of an SSD is stable at maximum speed position. You also must consider whether an SSD has a TRIM function or not. Currently,
there are several SSD which turned out not to have function TRIM. If indeed the price is tempting, you’ll want to check on his official website if anyone has the latest firmware which supports TRIM. If not, it’s not recommended to buy it.
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