Quantum Atlas V User manual

Data
Exceptional Value for Servers,
Workstations, and Subsystems
Key Features and Benefits
•Exceptional value — 36.7 GB, 18.3 GB,
and 9.1 GB in a 1-inch-high, 3.5-inch
form factor
•Outstanding performance — 7,200
RPM, 6.3 ms average seek time,
29 MB/sec maximum sustained
throughput, up to 160 MB/sec bus
transfer rate
•Proven reliability — Shock Protection
System II (300 Gs non-op shock), Data
Protection System, Shock Sensor,
Thermal Sensor, 352-bit double-burst
ECC on-the-fly, S.M.A.R.T., 5-year warranty
•Industry-leading acoustics — drive idle
acoustics as low as 3.2 Bels
•Advanced SCSI interface for superior
manageability — Ultra160 SCSI interface
with Fairness, Cyclical Redundancy
Check (CRC), Asynchronous Information
Protection (AIP), Domain Validation,
Ultra2 and Ultra SCSI compatibility,
Active LVD bus hot-pluggable design,
intelligent SCSI bus management
Atlas V 9.1 GB
18.3 GB
36.7 GB
The Market
In today’s non-stop, Web-reliant world,
the demand is skyrocketing for cost-
effective, enterprise-level data storage
that doesn’t compromise performance
or reliability. Quantum meets the need
with the new Atlas™ V disk drive
family—the premier solution for entry-
level workstations, departmental servers,
and storage subsystems running
applications from mechanical CAD,
digital video, and medical imaging
to e-mail, e-commerce, and ERP.
Exceptional Performance
and Value
The Atlas V provides outstanding
performance with a 7,200 RPM rotational
speed, lightning-fast 6.3 millisecond
(ms) average seek time, and 29 MB/sec
maximum sustained data throughput.
All this performance is packaged in an
economical 9.1 GB-per-platter design,
with up to 36 GB of storage capacity in
a 1-inch-high form factor, making the
Atlas V a truly exceptional value.
Quantum Quality and Reliability
The Atlas V drive incorporates
Quantum’s leadership Shock Protection
System II, which guards against non-
operating shocks of up to 300 Gs.
It also includes Quantum’s
innovative Data Protection
System, which lets users
easily verify that all vital
drive operations are
functioning properly.
The drive is also extremely quiet,
allowing its use in noise-sensitive
environments. For added confidence,
the Atlas V is backed with a
five-year warranty.
Enhanced Data Integrity, System
Performance, and Manageability
The Ultra160 SCSI interface on Atlas V
disk drives provides features that
enhance data integrity and increase
subsystem manageability. Cyclical
Redundancy Check (CRC) protects
data transfers during drive hot plugging,
and Domain Validation ensures optimal
SCSI operation through intelligent
network testing. Atlas V improves data
reliability further with a new feature —
Asynchronous Information Protection
(AIP), which extends CRC protection
to asynchronous transfers, such as
SCSI commands and messages. It also
includes the new “Fairness” feature,
which improves system performance in
multi-drive configurations by ensuring
equitable command execution across
all SCSI devices on the bus.
Atlas V datasheet II 12/20/99 3:30 PM Page 1

Specifications 9.1 GB 18.3 GB 36.7 GB
Form Factor 3.5" 3.5" 3.5"
Interface1/Connectors Ultra160, Ultra2, Ultra SCSI/68-pin Wide, 80-pin SCA-2
Formatted Capacity (MB2) 9,100 18,300 36,700
Disk Drive Configuration
Disks 1 2 4
Head/Recording Surfaces 2 4 8
Bytes per Sector 512 512 512
Maximum Areal Density (Gb/sq. in.) 6.8 6.8 6.8
Encoding/Detection Method 24/25 RLL PRML 24/25 RLL PRML 24/25 RLL PRML
Performance Specifications
Typical Seek Times3(ms)
Average 6.3
Track-to-Track 0.8
Full Stroke 15.0
Average Rotational Latency (ms) 4.17
Rotational Speed (RPM) 7,200
Internal Data Rate (Mb/sec) 194 to 340
Sustained Throughput (MB/sec) 17 to 29
Data Transfer Rates -burst (Buffer-to-Host) (MB/sec)
Ultra160 SCSI 160
Ultra2 SCSI 80
Ultra SCSI 40
Buffer Size (MB) 4
Reliability Specifications
Data Errors (per bits read)
Recoverable 10 per 1011
Nonrecoverable 1 per 1014
Error-Correction Method 352-bit Reed Solomon
Warranty4(years) 5
Physical Specifications 9.1 GB 18.3 GB 36.7 GB
Dimensions—inches (mm)
Width 4.00 (101.6) 4.00 (101.6) 4.00 (101.6)
Length 5.75 (146.1) 5.75 (146.1) 5.75 (146.1)
Height 1.00 (25.4) 1.00 (25.4) 1.00 (25.4)
Weight— pounds (kg) 1.3 (0.58) 1.3 (0.6) 1.4 (0.63)
Environmental Limits
Operating
Temperature (˚C) 5 to 55 5 to 55 5 to 55
Non-Condensing Humidity (%) 10 to 90 10 to 90 10 to 90
Vibration (G, 5 to 500 Hz) 1.0 1.0 1.0
Sound Power (Bels, Idle) 3.2 3.3 3.5
Non-Operating
Temperature (˚C) -40 to 65 -40 to 65 -40 to 65
Non-Condensing Humidity (%) 5 to 95 5 to 95 5 to 95
Shock (G, 2 ms, 1/2 sine) 300 300 280
Vibration (G, 5 to 500 Hz) 2.0 2.0 2.0
Power Specifications
Voltage Requirements (V) +5V DC±5% +12V DC ±10%
Typical Power Draw (W)
Idle 7.5 8.7 9.9
Typical Current Draw (A, Read/Write)
5V 0.3 0.4 0.5
12V 0.79 0.79 0.79
Peak Start-up Current
(A on +5V/+12 V) 0.65/2.2 0.65/2.2 0.65/2.2
Specifications subject to change without notice.
©1999 Quantum Corporation. All rights reserved. Quantum and the Quantum logo
are trademarks of Quantum Corporation, registered in the U.S.A. and other countries.
Atlas is a trademark of Quantum Corporation. Products mentioned herein are
for identification purposes only and may be registered trademarks or trademarks
of their respective companies.
Printed in the U.S.A. 60K HGD/ELIPSIS AVDS1299
For more information about Quantum’s quality products,
call toll free: 1.800.624.5545 in the U.S.A. and Canada,
or visit our worldwide web site: http://www.quantum.com
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U.S.A.
1.800.624.5545
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Shinjuku-ku, Tokyo, 163-11
Japan
81.3.5321.7900
1. SPI-3 compliant. 2. Quantum defines a megabyte (MB) as 106or 1,000,000 bytes. 3. Seek times are at nominal conditions and include settling. 4. This warranty is standard when
products are purchased directly through authorized Quantum distributors/dealers. End-user warranties provided by computer manufacturers may vary.
Atlas V datasheet II 12/20/99 3:30 PM Page 2