Hitachi HUSML4040ASS600, HUSML4040ASS601, HUSML4020ASS600, HUSML4020ASS601 DATASHEET

Ultrastar™ SSD400M

ENTERPRISE SOLID STATE DRIVES

Enterprise-class MLC NAND SSD delivers ultra-high performance, reliability and endurance in one package

Highlights

MLC NAND Flash for ultra-high performance >

and endurance

Best IOPS/Watt for reduced TCO >

6Gb/s SAS interface for maximum >

throughput

Advanced Power-loss Data Management >

technology

Trusted Computing Group’s (TCG) >

self-encrypting models designed to

Enterprise specication

Applications/Environments

Ultra-high performance tier-0 enterprise >

storage

Enterprise-class servers and High >

Performance Computing

Space and/or power constrained environments >

Online Transaction Processing (OLTP) >

Video pre/post-production >

Financial ande-commerce >

Database analytics >

Cloud computing >

Features and Benefits

Feature / Function Benets

Performance SAS 6Gb/s Dual port for enhanced reliability

MLC NAND Flash Memory Highest write performance
495 / 385 MB/s Sequential R/W Max throughput and IOPs for ultra-fast access to data.
56K / 24K IOPS Random R/W 100x faster than typical HDD

Power 5.5 Watts, typical Up to 60% less power than 3.5-inch 15K RPM HDD

Capacity1 400GB, 200GB More capacity for less space and power

Reliability 0.44% AFR (2M Hours MTBF2) Reduced field replacement effort

1E-16 Bit Error Rate (BER) Enhanced error detection and correction for
T10 End-to-end Data Protection optimal data integrity
Exclusive-OR (XOR) NAND Protection against flash die failure
Power-loss Data Management Enhances data integrity during power failure
Unlimited reads, up to 7.3 PB1 Maximum endurance over the life of SSD
writes (400GB)

Integration HDD architecture commonality Compatibility with Ultrastar SAS/FC HDD
Global Systems Integration & Test Lab Extensive interoperability and compliance testing

Proven enterprise storage experience

Hitachi GST leverages decades of proven enterprise storage expertise in Serial Attached SCSI

(SAS) design reliability, rmware, customer qualication and system integration to the new Ultrastar

SSD400M solid-state drive (SSD) family. The synergistic relationship between Hitachi’s new

throughput-enhancing SSDs and traditional HDDs provides cost-effective, end-to-end, enterprise-

class storage solutions, delivering reliability, compatibility, capacity, cost and system performance.

This combination makes Hitachi GST a leading HDD/SSD provider with the experience and

technology needed to meet escalating reliability, endurance, and performance in the most

demanding enterprise environments.

400GB and 200GB | MLC

2.5-inch SFF | SAS 6Gb/s

Maximum performance, reliability and endurance

The new Ultrastar SSD400M delivers high sequential throughput, up to 495MB/s read and 385MB/s

write (6Gb SAS) in a compact 2.5-inch form factor. The SSD400M also delivers up to 56,000 read

and 24,000 write IOPS, reaching speeds 100 times faster than HDDs, allowing rapid access to “hot”

enterprise data for improved productivity and operational efciency. Since fewer SSDs are required

to achieve the same HDD IOPS performance, the Ultrastar SSD400M family offers signicant

value in terms of IOPS per Watt, while reducing total cost of ownership (TCO) through low

power consumption, efcient cooling and reduced space requirements.

The Ultrastar SSD400M combines enterprise-grade MLC NAND ash memory, advanced endurance

management rmware and power-loss data management techniques to extend reliability, endurance

and sustained performance over the life of the SSD. This MLC SSD from Hitachi achieves an

extraordinary 0.44% annual failure rate (AFR) or two-million-hour mean time between failure (MTBF).

The 400GB capacity Ultrastar SSD400M endures up to 7.3 petabytes (PB) of random writes

over the life of the drive – the equivalent of writing 4 terabytes (TB) per day for ve years.

For complete end-to-end data protection and reliability, the Ultrastar SSD400M family

incorporates the T10 Data Integrity Field (DIF) standard, extended error correction code

(ECC), Exclusive-OR (XOR) parity to protect against ash die failure, parity-checked internal

data paths without an external write cache, and an exclusive power loss data management

feature that does not require supercapacitors. The Ultrastar SSD400M family is backed by a

ve-year limited warranty, or the maximum Petabytes (PB) written (based on capacity).

www.hitachiGST.com

Ultrastar™ SSD400M

Specifications

Model(s)

Conguration

Interface
Capacity (GB)1 at 512 Bytes/sector
Form factor
Flash memory technology

Performance

Read Throughput (max MB/s, sequential 64K)
Write Throughput (max MB/s, sequential 64K)
Read IOPS (max IOPS, random 4K)
Write IOPS (max IOPS, random 4K)

Reliability

Error rate (non-recoverable bits read) 1 in 10
MTBF2 (M hours)
Availability (hrs/day x days/wk)
Endurance (max PB1, random write)

Power

Requirement

Operating (W, typical)

Idle (W)
Power consumption efficiency (IOPS/Watt)

Physical size

z-height (mm)
Dimensions (width x depth, mm)
Weight (g, max)

Environmental (Operating)

Ambient temperature

Shock (half-sine wave)

Vibration, random (G RMS)

1

One gigabyte (GB) is equal to one billion bytes, one terabyte (TB) equals 1,000 GB (one trillion bytes), and one petabyte (PB) equals 1,000TB (one
quadrillion bytes) when referring to hard drive or solid state drive capacity. Accessible capacity will vary from the stated capacity due to formatting
and partitioning of the drive, the computer’s operating system, and other factors.

2

MTBF target is based on a sample population and is estimated by statistical measurements and acceleration algorithms under nominal operating
conditions. MTBF ratings are not intended to predict an individual drive’s reliability. MTBF does not constitute a warranty.

HUSML4040ASS600
HUSML4040ASS601
HUSML4020ASS600
HUSML4020ASS601

SAS 6Gb/s

400 / 200

2.5-inch SSD

Multi-level cell (MLC)

495

385

56,000

24,000

16

2.0

24x7

7.3 / 3.7

+5 VDC (+/-5%)

+12 VDC (+/-5%)

5.5

1.7

8,360

15.0

70.1 x 100.6

187

0 to 60º C

1000G (0.5ms)

500G (2ms)

2.16, all axes
5 to 700 Hz

Hitachi quality and service

Hitachi’s Ultrastar SSD400M family extends

the company’s long-standing tradition of

performance and reliability leadership. A balanced

combination of new and proven technologies

enables high reliability and availability to

customer data.

Hitachi drives are backed by an array of technical

support and services, which may include customer

and integration assistance. Hitachi is dedicated

to providing a complete portfolio of HDD/SSD

solutions to satisfy today’s monumental

computing needs.

How to read the Ultrastar model number

HUSML4040ASS600 = 400GB, SAS 6Gb/s
H = Hitachi
U = Ultrastar
S = Standard
ML = Multi-level cell (NAND)

40 = Full capacity — 400GB
40 = Capacity this model, 40 = 400GB (20 = 200GB)
A = Generation code
S = Small Form Factor (vs. L for Large FF)

S6 = Interface, SAS 6Gb/s
0 = Reserved
0 = No Encryption (1 = TCG Encryption

Information and Technical Support

www.hitachigst.com (Main Web site)

www.hitachigst.com/partners (Partner Web site)

North America

[e-mail]
Toll free: 1 888 426-5214

Asia Pacic

[e-mail] / 65 6840 9595

EMEA and UK

[e-mail] / 44 20 7133 0032

Germany

[e-mail] / 49 6929 993601

Program Support

Partners First™ Program
[e-mail]

Ultrastar is a trademark of Hitachi Global Storage Technologies. Hitachi and Hitachi Inspire the Next logo are trademarks of Hitachi, Ltd in the
U.S., Japan and/or other countries. Other trademarks are the property of their respective companies.

Hitachi Global Storage Technologies trademarks are intended and authorized for use only in countries and jurisdictions in which Hitachi
Global Storage Technologies has obtained the rights to use, market and advertise the brand. Contact Hitachi Global Storage Technologies
for additional information. Hitachi Global Storage Technologies shall not be liable to third parties for unauthorized use of this document or
unauthorized use of its trademarks.

References in this publication to Hitachi Global Storage Technologies products, programs, or services do not imply that Hitachi Global
Storage Technologies intends to make these available in all countries in which it operates. Some countries have laws that may affect
encryption-enabled devices. Hitachi GST assumes no responsibility for compliance with laws that apply to our products after they are sold
or outside of our control. Accordingly, we suggest that you review all laws of the countries where you conduct business.

Product specications provided are sample specications and do not constitute a warranty. Information is true as of the date of publication
and is subject to change. Actual specications for unique part numbers may vary. Please visit the Support section of our website,
www.hitachigst.com/support, for additional information on product specications. Photographs may show design models.

DSUSSSD40M11EN-02

© 2011 Hitachi Global Storage Technologies

Hitachi Global Storage Technologies

3403 Yerba Buena Road
San Jose, CA 95135 USA

Produced in the United States 8/11, rev. 8/11.
All rights reserved.

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