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OCZ Agility MLC SSD OCZSSD2-1AGT120G E-mail
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Written by Olin Coles   
Wednesday, 22 July 2009
Table of Contents: Page Index
OCZ Agility MLC SSD OCZSSD2-1AGT120G
Features and Specifications
First Look: Agility SSD
Agility Internal Components
SSD Testing Methodology
Random Access Time Benchmark
Basic IO Bandwidth
Random Access IOPS Tests
I/O Response Time
Linear Bandwidth Speed
Sequential Performance Tests
Buffered Transaction Speed
Windows XP Startup Times
The Truth Behind Heat Output
Solid State Drive Final Thoughts
OCZ Agility Conclusion

Agility Internal Components

OCZ has designed their Agility Solid State Drive to use the exact same architecture and components as the more expensive OCZ Vertex SSD series, with the NAND flash modules being the only difference between the two products. Benchmark Reviews has discovered that OCZ does not use one single brand of NAND for the Agility, and that the modules could be from one of several different major manufacturers, depending on the model and construction date. For this Internal Components section, we have re-used content from the OCZ Vertex series review.

Intermittent and delayed response cycles (stuttering) from Solid State Drive products is not entirely wide-spread among all MLC SSDs, but it has become a big-enough issue among most affordable SSD products that many are well-aware of the phenomenon. Consumers first experienced the bitter taste of stuttering SSD performance with the OCZ Core Series (v1) SSD, although it has also been reported with the G.Skill MLC SSD and Patriot Warp v2. The phenomenon occurs when the drives buffer is filled faster than it can read or write data, and was prevalent among first-generation JMicron JMF602 SSD controllers.

In our OCZ Apex SSD article, Benchmark Reviews detailed how the JMicron JMB390 RAID controller managing a pair of JMF602(B) SSD controllers into a RAID-0 striped array was able to overcome the 'stutter' experienced in MLC drives... at least in read functions. OCZ has returned to traditional methods of delivering performance with their latest and greatest Solid State Drive: the OCZ Agility. But how will the Agility SSD produce read-from and write-to bandwidth on par with the RAID-0 Apex without all the new architecture? The secret lies within a larger buffer, and the retirement of JMicron controllers (at least for this product) in place of the new Indilinx ARM7 micro-controller.

OCZ_Vertex_PCB_Bottom.jpg

To the untrained eye, the OCZ Agility SSD looks like every other Solid State Drive you've probably seen when the internal components have been exposed. There's a collective bank of NAND modules, usually with Samsung markings, followed by the SATA controller chip. OCZ had decided to use Indilinx to deliver the SATA controller interface, since their 'Barefoot' chip was production-ready to be paired with a large cache months ago, while JMicron is still a few months away with their successor to the JMF602B chip.

OCZ_Vertex_PCB_Top.jpg

While the internal NAND flash DRAM on the OCZ Vertex is comprised of Samsung K9HCG08U1M-PCB00 IC parts (pictured below) which bare the branding mark K9HCG08U1M PCB0, the Agility mainstream-series SSD uses several different manufactures to supply more affordable NAND modules. These lead-free RoHS-compliant 48-pin ICs are multi-layer, with one IC directly atop another to offer 64GB in 8x organization.

SAMSUNG_K9HCG08U1M_DRAM.jpg

Indilinx claims that their IDX110M00-FC 'Barefoot' chip offer a maximum read speed 230 MBps and supports the capacity up to 512GB with multi-level cell (MLC) NAND flash. The Indilinx (IDX110) Barefoot SSD controller chip is touted as delivering bandwidth over 200 MBps and random input-output (IO) of 20,000/s into various servers such as on-line transaction processing (OLTP) and streaming server units. These figures are NAND-flash dependant, which is why the Agility SSD is reduced in speed when compared to the premium Vertex series.

INDILINX_IDX1100M00-FC.jpg

A single Elpida 64MB SDRAM module is marked with S51321CBH-7BTT-F, but the actual Elpida part number is EDS51321CBH, which is a 133MHz (CL3-3-3) mobile RAM component. This 64MB cache buffer helps improve small write-to performance and removes the 'stuttering' effect from the Agility SSD.

ELPIDA_S51321CBH.jpg

In the next section, Benchmark Reviews begins performance testing the OCZ Agility Solid State Drive, and we determine just how well the new Indilinx Barefoot-based SSD compares to the previous best-performing competition.



 

Comments 

 
# Dell Inspiron 6400+SSDEgor Ukraintsev 2011-11-02 14:37
Hello Olin Coles. I tried to install a Win XP, Vista and Win 7 systems on Dell inspiron 6400 notebook with 60 Gz OCZ SataIII harddrive. Each time I had different problem: blue dead screen, error "bootmgr is missing", can not load a file to harddrive and so on. Did you have such problems? How can i solve such problems and install win on this notebook? Thank you. Egor Ukraintsev
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# RE: Dell Inspiron 6400+SSDOlin Coles 2011-11-02 14:39
Hello Egor:
Although I did not have problems with the SSD sent to me for testing, it sounds like your SSD might have a problem with it. I suggest that you update the SSDs firmware to the latest available on the OCZ website, and contact their technicians if you need additional assistance. Good luck!
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