Is an HDD/SSD Price Crossover Coming Soon?

Western Digital's 10TB Ultrastar He HDDThe SSD Guy was recently asked whether HDDs would continue, at least through 2019, to remain preferable to SSDs as cost-effective high-capacity storage.  The answer was “Yes”.

Longtime readers will note that I steadfastly maintain that HDD and SSD gigabyte prices are unlikely to cross for a very long time.  Historically, a gigabyte of NAND flash has cost between ten to twenty times as much as a gigabyte of HDD.  Let’s look at where Objective Analysis expects things to go by 2019.

Our current projections call for NAND price per gigabyte to reach 4.4 cents in 2019.  I would expect for HDD to still be 1/10th to 1/20th of that price.  Most likely 1/10th, since we expect for NAND flash to be in a significant oversupply at that time and will be selling at cost.

If HDD prices continue to hover around $50, then a 2019 HDD price of 0.44 to 0.22 cents per gigabyte (1/10th to 1/20th of the price of NAND flash) would imply an average HDD capacity of 11-23TB.

A couple of weeks ago, on December 2, 2015, Western Digital’s HGST introduced its Continue reading

LSI SandForce SSD Controllers Move the Knee in the Curve

LSI SandForce SF3700 Controller DuraWrite ImprovementsLSI’s SandForce has just rolled out its SF3700 family of four SSD controllers aimed at the Entry Client, Mainstream Client, Value Enterprise, and Enterprise Storage marketplaces. Performance is impressive, with worst-case random PCIe IOPS at 150K read/81K write and 94K/46K for the SATA interface.

The SF3700 family builds on the division’s first two product families by adding a choice of PCIe or SATA interfaces, LDPC error correction, and a boosted set of flash management features.  The SSD Guy will explore this last point after highlighting the other two.

By providing both PCIe and SATA interfaces LSI is directly addressing the future: PCs are aiming to move to the m.2 SSD specification rather than Continue reading

Intel Intros Fast Datacenter SATA SSD

IOPS Over Time - Competing SSD vs. Intel DC S3700Today Intel announced a new SATA III SSD, the DC S3700 Series.  The new product is fast, supporting 75,000 random 4K read IOPS and 36,000 random 4K write IOPS.  Average read latency is 45microseconds (µs) with writes averaging 65µs.  Sustained sequential reads are 500 megabytes/sec with sustained sequential writes at 460.  The read performance of this SSD, although a SATA device, is twice that of Intel’s 710 PCIe SSD announced in April, and writes are a full 15 times faster.  Intel calls this performance: “Scary fast!”

Intel says this device is its best Continue reading

Toshiba Announces its Hybrid Drive

Toshiba's New Hybrid DriveNow that we have seen announcements of hybrid drives from Western Digital and Seagate, Toshiba arrives with a formal announcement of the product that was on display at last month’s Flash Memory Summit.  Two 2.5″ Toshiba hybrid drives are starting to sample at 750GB and 1TB capacities.  Both have 8GB NAND caches, 6Gb/s SATA 3 interfaces, and 5,400RPM spindle speeds.  They are both built using 32nm SLC NAND, Toshiba’s “generation before last” technology, preceding the 24nm and 19nm nodes shipping in high volume today.

More importantly, both are 9.5mm in height, a thickness that renders them difficult to incorporate into the 18mm maximum thickness of the smaller Ultrabooks – a notebook form factor that Intel is heavily promoting.

How is this whole market Continue reading

OCZ: Three Solid State Storage Products in Three Weeks

OCZ's PCIe Z-DriveSSD maker OCZ has been on something of a tear recently, introducing three new solid state storage products in three weeks:

  • Two weeks ago the company introduced the Z-Drive R4 CloudServ PCIe SSD, designed for the data center, in single-card capacities ranging from 300GB-16TB.  This product can transfer data at multiple gigabytes per second rates to deliver over a million IOPS.
  • Last week saw the introduction of the OCZ-SANRAD VXL enterprise storage accelerator, after OCZ’s January acquisition of SANRAD.  This product is flash cache acceleration software for VMware ESX and Citrix Xen virtualized environments that allows Continue reading

SandForce: The Cloud needs Different SSDs

SandForceOn Monday December 13 SandForce introduced SSD controllers designed specifically for cloud computing applications.

You might wonder what is so different about cloud applications that they need an SSD controller of their own.  SandForce makes some interesting points:

  1. Cloud applications need low latency
  2. Cloud computing centers, like client SSDs, need a lot of capacity at a very low price Continue reading

What Happens when SSDs Fail?

What happens at the end of an SSD's life?There’s a lot of “Fear, Uncertainty, and Doubt” – FUD – circulating about SSDs and their penchant for failure.  NAND flash wears out after a set number of erase/write cycles, a specification known as the flash’s endurance.

While some caution is warranted, a good understanding of how SSDs really behave will help to allay a lot of this concern. Continue reading

LSI Acquires SandForce

On October 26 LSI announced its acquisition of leading SSD controller maker SandForce.  The privately-held firm has made significant strides in the development of high-performance controllers that have gained great popularity through a string of impressive benchmark results in the online reviewer community. Continue reading


Jim Handy
Objective Analysis
SSD Market Research
+1 (408) 356-2549
Jim.Handy (at)

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