Smart SSD Controller with Flexibility

SSD with Hybrid NAND

Smart Controller pushing price barrier

Bob Chang / NOVACHIPS

[email protected]

Flash Memory Summit 2011Santa Clara, CA

What Matters In SSD Market?

Performance has been highlighted

• Source: Anantech ‘The 2011 Mid-Range SSD Roundup: 120GB Agility 3, Intel 510 and More Compared’

Which Metric Matters Most?

Lots of Performance Comparison with HDD

But no comparison between SSDs

Which Metric Matters Most?

Small Size Performance Matters Fast 4KB Performance is Better

Does Performance Scale Go Linearly with What Users Feel?• Source: Sandisk_20100817_F1B_Tailoring SSD Architectures to Meet Evolving PC User Requirements_OrenKlein

Window 7 typical user workload analysis

What If the SSD Were Infinitely Fast?

Cached DRAM data represent infinitely fast drive

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Difference between SSD and infinitely fast drive is small!!

• Test system: Intel® CoreTM i7-2600 8MB L3 3.4GHz P67, 4GB DDR3 • DRAM SSD Simulation Test Method: Launch an application to cache it in the dram and then exit & re-launch to measure the application launch time.• Intel S320 300GB SSD is used for SSD. Seagate Momentus* 7200 rpm ST9500420AS 500GB is used for HDD

128GBMLC

128GBSLC

$1,300

$425

$250128GBMLC

$1400

$1200

$1000

$800

$600

$400

$200

$0

2007 2008 2009 2010 2011 2012

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rket E

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What Really Matters Today? Price were, is and will be the Key Driver

5xnm SLC NAND 5xnm 3xnm MLC NAND 2xnm MLC NAND 1xnm MLC

Any Room for Price Reduction without Trading off Performance

7• Source: Price reference from Newegg.com

Any Room for Price Reduction without Trading off Performance

• Source: Price reference from Newegg.com

Various NANDs in Today’s MarketIn

crea

sin

g P

erfo

rman

ce, R

elia

bili

ty &

Pri

ce SLC

NAND

Clear NAND

Enterp. Grade MLC

Synch

Synch/Toggle MLC NAND

Asynch MLC NAND

TLC NAND• Less Reliability• Low Price for SD

Cards

• Consumer NAND• Mass Market

• High Speed Interface• Small Premium Price

• Improved Reliability• Improved Endurance

• Built-in ECC & Signal Processing• Less burden for controllers

• High Reliability and Endurance• High Price and Performance

SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

New Segments with Hybrid NAND

Increasin

g P

erform

ance, R

eliability &

Price

240240

RandomRead

4KB 32Q

150150

RandomWrite

4KB 32Q

200200

Write

450450

Read PCMark05Vantage

40K40K

Max. 30% or higher Premium Price

But Great Performance & Endurance

• Benchmark is performed with CrystalDiskMark3.0* and PCMark05 Vantage. / Test system: Intel® CoreTM i7-2600 8MB L3 3.4GHz P67, 4GB DDR3 • SATA 3,128GB SSDs are tested. One with 25nm Synch NAND and the other with 34nm Asynch NAND.• Hybrid NAND SSD performance is projected performance with internal simulation result.


SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

Increasin

g P

erform

ance, R

eliability &

Price

240240

8787

150150

6666

180180

200200

450450

400400

30K30K

40K40K

RandomRead

4KB 32Q

RandomWrite

4KB 32Q

WriteRead PCMark05Vantage

Less Expensive

Performance is not too great


SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

240240

8787

150150

6666

180180

200200

450450

400400

30K30K

40K40K

RandomRead

4KB 32Q

RandomWrite

4KB 32Q



Increasin

g P

erform

ance, R

eliability &

Price

Push the price barrier even lower

Hybrid


SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

8787

6666

180180

400400

30K30K

RandomRead

4KB 32Q

RandomWrite

4KB 32Q



Increasin

g P

erform

ance, R

eliability &

Price

Hybrid

500500

200200

300300

150150

45K45K

Push the price barrier even lowerGreat Sequential PerformanceAlmost no loss on Random Perf.


Hybrid NAND SSD

Smart Controller is Key to New Price Segment


Smart Controller is Key to New Price Segment


At Small Capacity SSD

SLC like Product Life & Performance

With MLC like Price


Increasin

g P

erform

ance, R

eliability &

Price

SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

Hybrid

Mainstream SSDs

SLC like Performance

TLC like Price


Increasin

g P

erform

ance, R

eliability &

Price

SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

Hybrid

Reliability and Product LifeImprovement with Hybrid NAND

Read Cycle

P/E Cycle

Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C) TLC

MLC

SLC

Acceptable Error Rate for Client Application


Read Cycle

P/E Cycle

Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C) TLC

MLC

SLC

Acceptable Error Rate for Client Application

Advanced adaptive algorithm to filter ‘frequently ’ & ‘Infrequently’

accessed data to enable Hybrid NAND configuration

HOT COLD

Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C)

MLC

SLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C)

MLC

SLC

SLC+MLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C)

MLC

SLCIncrease Useful Life

SLC+MLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C)

MLC

SLCIncrease Useful LifeIn

crea

se

Dat

a In

teg

rity

SLC+MLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C) TLC

SLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C) TLC

SLC

SLC+TLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C) TLC


SLC+TLC

Read Cycle

P/E Cycle


Pro

bab

ilit

y o

f B

it E

rro

r (A

fter

EC

C) TLC


Incr

ease

D

ata

Inte

gri

ty

SLC+TLC

Read Cycle

P/E Cycle


Hybrid NAND SSD

Flexible Configuration

For Market NEEDS


Increasin

g P

erform

ance, R

eliability &

Price

SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

Hybrid

Hybrid NAND SSD

Flexible Configuration

For Market NEEDS


Increasin

g P

erform

ance, R

eliability &

Price

SLC NAND

Clear NAND

Enterp. Grade MLC

Synch


Asynch MLC NAND

TLC NAND

Hybrid

Smart SSD Controller can flexibly configure various NANDs from today’s market

Not only it can expand the market by pushing the price barrier but also create new market

segments according to various market needs

Thank youFor Any Questions; Please contact Bob Chang / NOVACHIPS Co., Ltd.

Email: [email protected]

www.novachips.comLegal DisclaimerAll other trademarks are property of their respective owners. Information in this slide is subject to change without notice.NOVACHIPS is not responsible for omissions or errors in typography or photography of this document.

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Smart SSD Controller with Flexibility

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