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Enterprise Flash Drive

Enterprise Flash Drive

A evolução do armazenamento de dados

João Bonnassis

Sales Productivity Manager

EMC Brasil

São Paulo - 06/08/2009

Tutorial sobre as tecnonologias SSD (Solid State Disk) e sua

implantação pela engenharia da EMC, denominado EFD (Enterprise

Flash Drive), onde foram eliminadas as restrições para o seu uso

nas aplicações críticas 24x7.

EFD foi lançado pela EMC em janeiro/2008 e já é um sucesso de

utilização nas áreas de TI em pequenas, médias e grandes

empresas (inclusive no Brasil).

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HDD

(Hard Disk Drive)

SSD

(Solid State Disk)

(6)

DDR RAM

(Double Date Rate Random Access Memory)

(7)

MLC ( Multi-Level Cell )

( CFD -

Consumer Flash Drive

)

(8)

NAND Flash Drive

(9)

Controller

Logic

Controller

Logic

Non-Volatile

SLC

NAND Flash

Non-Volatile

SLC

NAND Flash

EMC Engineering Enterprise Flash Drive

Tier-0 Storage Architected for Availability, Reliability, Data Integrity and Performance

Firmware

Firmware

• Interface Protocol

• Media Management

• Error Detection & Correction

Dual-Ported

FC-AL 4 Gbps

Interface

Dual-Ported

FC-AL 4 Gbps

Interface

End-to-End Multi-bit Error Correction

DDR

SDRAM

w/SPS

DDR

SDRAM

w/SPS

Multiple

Parallel

I/O Channels

Multiple

Parallel

I/O Channels

The Only Enterprise-Class Flash Drive Tested and Available in the Market Today

FC (Fibre Channel Arbitrated Loop) SPS (Stand by Power Supply) SLC (SingleLevel Cell)

-DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory)

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Device-level Reliability

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Dual-ported Fibre Channel 4 Gbps

interface

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Integrated DRAM power de-stage

protection

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Multi-bit ECC protection overlaps internal

domains

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Modified/extended SMART status

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>1.5 million hour MTBPR (rated)

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NAND Reliability

9

SLC (Single-Level Cell) NAND rated for 100,000

rewrites with 1-bit ECC

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Multi-bit ECC extends protection

9

Observed life time exceeds 300,000

Æ

2,000,000

rewrites

(“Program-Erase Cycles” – SNIA)

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Dynamic Bad-block remapping

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Just like a traditional disk drive

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SDRAM cache buffer minimizes write amplification

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Array I/O is aligned to device’s block size

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Wear-Leveling

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Over provisioned raw NAND Capacity

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73 GB usable

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200 GB usable

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400 GB usable

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Static and Dynamic Wear leveling

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Writes and rewrites are relocated to different

physical NAND blocks

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Write activity is abstracted from the physical

blocks so the blocks wear more evenly

9

5 years expected service life (heavy load)

Life Expectancy Should Easily Exceed that of Hard Disk Drives

MTBPR

-Mean Time Between Parts Replacement

EMC Engineering Enterprise Flash Drive

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HDD

(Hard Disk Drive – 15000 RPM, 4 Gbps FC-AL or

15000 RPM, 3 Gbps SAS)

Flash

(Flash Drive / Solid State Drive - 3 Gbps FC-AL)

EFD

(Enterprise Flash Drive / Solid State Drive)

DDR

(Double Date Rate Random Access Memory)

1x Flash drive = 100000 IOPS (read)

1x Flash drive = 20000 IOPS (write)

1x HDD = 200 IOPS (read / write)

-1x Flash drive = 500x HDD (read)

1x Flash drive = 100x HDD (write)

SNIA

SNIA

1x HDD 15000 RPM 4 Gbps = 180 IOPS

1x Enterprise Flash drive = 2500 IOPS

EMC Engineering

(8 KB block random read miss)

512 byte block

1x HDD 15000 RPM 4 Gbps = 8 MByte/sec

1x Enterprise Flash drive = 100 MByte/sec

EMC Engineering

(512 KB block sequential read miss)

IOPS

IOPS

BANDWIDTH

(13)

SATA II 7200 RPM 1024 GB

x

Fibre Channel 15000 RPM 300 GB

Enterprise Flash Drive 400 GB

Application 1:

MS Exchange 2007

(VMware + Windows)

#Heavy Users:

2900

IOPS:

2900

DataBase Size:

400 GB

Application 2:

ERP (OLTP)

(Unix | Windows)

#Heavy Users:

+10000

IOPS:

17000

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EMC Engineering

(15)

(120 disks SATA,1024 GB, 4 Gbps, 7200 RPM) x ~US$ 679 =

US$ 81,480

(US Price List 2009*)

Application:

MS Exchange 2007

MS Exchange 2007

#Heavy Users: 2900

IOPS: 2900

DataBase Size: 400 GB

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-EMC CLARiiON CX4

EMC CLARiiON CX4

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120

120

120

disks SATA II

1024 GB

4 Gbps 7200 RPM

RAID-10 with 8 KByte block

2900 IOPS

random read/write

14.6 ms

avg. response time

Total Storage: 122880 GB

Not Used: 122480 GB

SATA II disk drive (1024 GB)

SATA II disk drive (1024 GB)

(16)

Application:

MS Exchange 2007

MS Exchange 2007

#Heavy Users: 2900

IOPS: 2900

DataBase Size: 400 GB

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-EMC CLARiiON CX4

EMC CLARiiON CX4

-

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120

120

2

disks SATA II

1024 GB

4 Gbps 7200 RPM

RAID-10 with 8 KByte block

48 IOPS

random read/write

14.6 ms

avg. response time

Total Storage: 2048 GB

Not Used: 1648 GB

(2 disks SATA, 1024 GB, 4 Gbps, 7200 RPM) x ~US$ 679 =

US$ 1,358

(US Price List 2009*)

SATA II disk drive (1024 GB)

(17)

(84 disks FC/SAS, 300 GB, 4/3 Gbps, 15000 RPM) x ~US$ 1500 =

US$ 126,000

(US List Price 2009*)

Fibre Channel disk drive (300 GB)

Fibre Channel disk drive (300 GB)

Application:

MS Exchange 2007

MS Exchange 2007

#Heavy Users: 2900

IOPS: 2900

DataBase Size: 400 GB

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-EMC CLARiiON CX4

EMC CLARiiON CX4

-

-

120

120

84

disks Fibre Channel

300 GB

4 Gbps 15000 RPM

RAID-10 with 8 KByte block

2900 IOPS

random read/write

7.5 ms

avg. response time

Total Storage: 25200 GB

Not Used: 24800 GB

(18)

(2 disks EFD, 400 GB, 4 Gbps) x ~US$ 30,000 =

US$ 60,000

(US Price List 2009*)

EFD flash drive (400 GB)

EFD flash drive (400 GB)

Application:

MS Exchange 2007

MS Exchange 2007

#Heavy Users: 2900

IOPS: 2900

DataBase Size: 400 GB

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-EMC CLARiiON CX4

EMC CLARiiON CX4

-

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120

120

2

EFD Flash Drive

400 GB

4 Gbps

RAID-10 with 8 KByte block

2900 IOPS

random read/write

2.5 ms

avg. response time

Total Storage: 800 GB

Not Used: 400 GB

(19)

SATA II disk drive (1024 GB) SATA II disk drive (1024 GB)

EFD flash drive (400 GB)

EFD flash drive (400 GB)

~US$ 81,400 (2900 IOPS)

120 drives SATA 1024 GB

14.6 ms

avg. response time

122480 GB (120 TB) not used

~US$ 60,000 (2900 IOPS)

2 drives EFD 400 GB

2.5 ms

avg. response time

400 GB not used

9

83% melhor tempo resposta (SATA)

9

68% melhor tempo resposta (

FC/SAS

)

9

32% menos energia por GB

9

98% menos energia por I/O

Fibre Channel disk drive (300 GB)

Fibre Channel disk drive (300 GB)

~US$ 126,000 (2900 IOPS)

84 drives FC 300 GB

7.5 ms

avg. response time

24800 GB (24 TB) not used

(20)

Application:

ERP (OLTP)

ERP (OLTP)

#Heavy Users: +10000

IOPS: 17000

DataBase Size: 4800 GB

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-EMC CLARiiON CX4

EMC CLARiiON CX4

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-

480

480

420

Fibre Channel

300 GB

4 Gbps 15000 RPM

RAID-5 (4+1) with 8 KByte block

17000 IOPS

random read/write

5.0 ms

avg. response time

Total Storage: 126000 GB

Not Used: 121200 GB

420 disks FC/SAS 300 GB 4/3 Gbps x ~US$ 1,500 =

US$ 630,000

(US Price List 2009*)

Fibre Channel disk drive (300 GB)

(21)

13 disks EFD 400 GB 4 Gbps x ~US$ 30,000 =

US$ 390,000

(US Price List 2009*)

Application:

ERP (OLTP)

ERP (OLTP)

#Heavy Users: +10000

IOPS: 17000

DataBase Size: 4800 GB

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-EMC CLARiiON CX4

EMC CLARiiON CX4

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120

120

13

EFD Flash Drive

400 GB

4 Gbps

RAID-5 (12+1) with 8 KByte block

17000 IOPS

random read/write

3.0 ms

avg. response time

Total Storage: 5200 GB

Not Used: 400 GB

EFD flash drive (400 GB)

(22)

EFD flash drive (400 GB)

EFD flash drive (400 GB)

Fibre Channel disk drive (300 GB)

Fibre Channel disk drive (300 GB)

~US$ 390,000 (17000 IOPS)

13 drives EFD 400 GB

3.0 ms

avg. response time

400 GB not used

~US$ 630,000 (17000 IOPS)

420 drives FC/SAS 300 GB

5.0 ms

avg. response time

121200 GB not used

9

40% melhor tempo resposta

9

32% menos energia por GB

9

98% menos energia por I/O

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BANDWIDTH (MB/s)

: EFD ganha de HDD, quando são acessados e transferidos múltiplos blocos sequenciais >= 64 KB

THROUGHPUT (IOPS)

: EFD ganha de HDD, quando são acessados e transferidos múltiplos blocos randômicos <= 8 KB

Enterprise Flash Drive

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Tier-o

Tier-1

Tier-2

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e

e

-

-

mail:

mail:

[email protected]

[email protected]

Cel: (21) 9311

Cel: (21) 9311

-

-

0568

0568

João Bonnassis

Sales Productivity Manager

EMC Brasil

References

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