15 Mar, 2009

Selecting a Solid State Drive technology

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This is my 3rd post on Solid State drive technology (read Solid State Drives vs Hard disk drives). Offlate I have been making a ton of posts on storage, given that in a high-performance, data-intensive environment, applications eventually bottleneck at the slowest component in the chain – the disk (no surprise there considering it is the only device with moving parts).

With the numerous SSD options floating around in the market, it is hard to figure out which way to go without adequate research. Infact, a wrong choice can result in slowing down your application (check Solid State Hard drives have poor random write performance).

Here are my notes on selecting your SSD platform for maximum performance -

Check the random write IOPs
Different SSDs have different performance. SSDs fare worst on random writes (4K or smaller blocks). Therefore when checking an SSD – always check the maximum random write IOPs it delivers

Single cell (SLC) vs Multi-cell (MLC)
SSDs are either single cell (SLC) or multi-cell (MLC). SLC memory has the advantage of faster transfer speeds, lower power consumption and higher cell endurance. However, since they store less data per cell, SLC costs more per megabyte of storage than MLC.

Managed Flash Technology
I first wrote about Managed Flash Technology in my earlier article on SSDs - Solid State Drives vs Hard disk drives. MFT was developed by EasyCo. MFT essentially converts multiple random writes into a single linear write by collating them and writing them out together. MFT can pretty much be used in conjunction with any SSD. EasyCo’s website has interesting benchmark comparisons of SSDs with and without MFT. For instance, on the Mtron PRO 7000, MFT increased the random IOPs for 4K blocks from 123 to a whopping 16,180

Fusion-io
Fusion-io claims to have produced the fastest SSD in the world. With Steve Wozniak on their team, I would be inclined to believe their claims. The spec sheet of their latest drive – the iodrive duo – boasts a random write performance of 180,530 IOPs. That is insane. Additionally multiple ioDrives can be configured into a RAID array for additional performance and reliability.

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  • Comment by yangyang on March 25, 2010 @ 7:26 am

Comments
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Arvind
May 26, 2009

Hi Bhavin,

I am following Directi for the past few months and I must admit that I am over excited about the firm.

The kind of technology space which you are in is niche and not a lot of players are there in India who can match your potential.

Just a thought! Given the economic crisis and the rise of social media, Social Media Outsourcing will become a huge wave in the near future.

I feel Directi is excellently positioned to get into the Social media Consulting space and get some niche consulting and implementation assignments offshore.

I hope this is useful.

Thanks,
Arvind M

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erwe
December 6, 2009

I like this ugg ultra short, What is your

refund/returns policy?
Look at this ugg ultra tall that i bought last

week, Pretty! Fast service. Good Seller

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weer
December 6, 2009

Very ugg ultra short and service.
ugg ultra tall, nice out fit.good

price.

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yangyang
March 25, 2010

Grassroots Indigenous Multimedia announces the launch of their new Ojibwe Language learning software, Ojibwemodaa.Best Way : Rosetta stone learning Tips. Available in more than 30 languages, the Rosetta stone language-learning solution is used by schools, the consumer will write a message on the Personal Rosetta Stone. Download free language software, play online games and start learning a language now.

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