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Atlas 10K III    Atlas 10K II    Atlas V

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Maxtor Atlas V

For Enterprise Level data storage, the Maxtor® Atlas™ V 7200 RPM disk drive is an excellent choice for entry-level servers, workstations and storage subsystems. Built on the industry leading Atlas architecture, it has a blazing-fast 6.3 millisecond average seek time, 29 MB/sec maximum sustained data throughput, and leading-edge Ultra160 SCSI interface.

The Atlas V incorporates Maxtor's Shock Protection System II™, enabling the drive to handle external non-operating shocks of up to 300Gs. With a cost-effective 9GB-per-platter design, up to 36GB of capacity in a 1-inch high form factor, and superior reliability and acoustics, the Atlas V is an outstanding value.

 
 


Storage Capacity: 9.1GB to. 36.7GB
Average Seek Time: as low as 6.3 ms
Rotational Speed: 7,200 RPM
Interface Options: Ultra160/m SCSI, Ultra2, Ultra SCSI 68-pin Wide, SCSI 80-pin SCA-2

Atlas V
9.1
18.3
36.7
Form Factor
3.5 inch
3.5 inch
3.5 inch
Interfaces1
 
Ultra160/m, Ultra2, Ultra SCSI 68-pin Wide
Ultra160/m, Ultra2, Ultra SCSI 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.)
 		 6.5 6.5 6.5
Encoding/Detection
Method		 24/25 RLL
PRML		 24/25 RLL PRML 24/25 RLL PRML
       
 
Performance Specifications
Typical Seek Times3 (ms)      
Average (read) 6.3 6.3 6.3
Track-to Track 0.8 0.8 0.8
Full Stroke 15 15 15
Average Rotational Latency (ms) 4.17 4.17 4.17
Rotational Speed (RPM) 7,200 7,200 7,200
Internal Data Rate (Mb/sec) 194 to 340 194 to 340 194 to 340
Sustained Throughput (MB/sec) 17 to 29 17 to 29 17 to 29
       
 
Data Transfer Rates (Buffer-to-Host)
Ultra160/m SCSI (MB/sec) 160 160 160
Ultra2 SCSI (MB/sec) 80 80 80
Ultra SCSI (MB/sec) 40 40 40
Buffer Size (MB) 4 4 4
       
 
Reliability Specifications
Data Errors (per bits read)      
Recoverable 10 per 1011 10 per 1011 10 per 1011
Nonrecoverable 1 per 1014 1 per 1014 1 per 1014
Error-Correction
Method		 352-bit Reed Solomon 352-bit Reed Solomon 352-bit Reed Solomon
Warranty4 (years) 5 5 5
       
 
Physical Specifications
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 (0.58) 1.3 (0.58)
       
 
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) 3.4 3.4 3.6
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) 250 250 250
Vibration
(G, 5 to 500 Hz)		 2.0 2.0 2.0
       
 
Power Specifications
Voltage Requirement (V) +5V DC ±5%; +12V DC ±5%
Typical Power Draw
(W, Idle)		 9 9 9
Typical Current Draw
(A, Operating)		      
5V 0.62 0.62 0.62
12V 0.76 0.76 0.79
Peak Current
(A on +5V/+12V)		 0.92/2.10 0.92/2.20 0.92/2.20
     

 

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SCSI Disk Jumper Definitions

Atlas IV, Atlas V, Atlas 10K, Atlas 10K II, and Atlas 10K III

Maxtor (formerly Quantum) SCSI disk drives have multiple jumper setting options and are used to set specific drive features. The most common settings are used to define the drive SCSI ID and bus termination. Maxtor SCSI drives have additional jumper settings used for optional features found on the drive. Listed below are the various jumper options that may be found on Quantum SCSI drives and the corresponding feature that they enable.


DS - Delay Spin
This will cause the drive to not spin unless it receives a start unit command from a SCSI host. Most SCSI host adapters have the start unit command enabled by default in their BIOS. Enabling Delay Spin is only necessary when you are starting multiple SCSI devices at power on.

NW - No Wide
Allows for 16-bit or 8-bit data transfers. With a jumper installed on the No Wide pin pair, SCSI data bus transfers can be limited to 8-bit (narrow) operation.

SCSI ID
All SCSI devices must have an individual ID on the SCSI bus (there is no Master or Slave in SCSI). Four pairs of pins - A0, A1, A2, A3 - will allow configuration of SCSI ID's 0 to 15. SCSI ID 7 is usually reserved for the SCSI host adapter.

SE - Force Single Ended Operation
LVD drives are multi-mode capable, which means they support operation in LVD or single-ended (SE) mode. When an LVD device is installed on a single-ended SCSI bus it will electrically revert to single-ended mode automatically. With most system configurations it is not necessary to install this jumper.

SS - Stagger Spin
This option works in conjunction when the DS jumper is installed on the drive. It will allow each device to start (spin up) at pre-determined, staggered intervals when a START UNIT command is sent by the host adapter. This is useful when operating multiple devices on the same SCSI bus (helps prevent power supply overload caused by multiple devices attempting to start concurrently). Current host adapters usually offer a START/SPOP UNIT command enable or disable.

TE - Termination Enable
The Atlas IV, Atlas V, Atlas 10K, Atlas 10K II, and Atlas 10K III drives are Ultra160 Multi-Mode LVD devices and do not support onboard termination. It is recommended that a 68-pin twisted pair SCSI cable with a LVD/SE multi-mode terminator be used.

TP - Termination Power (Differs from Termination Enable)
Termination Power ensures that there is a sufficient level of power along the entire SCSI bus. It is recommended that the last device on the SCSI bus have the Termination Power jumper installed. All intermediate devices on the SCSI bus, between the host and last device, typically should have no jumper installed on Termination Power.

WP - Write Protection
With the Write Protection jumper installed, the drive can be used as a read-only device. This feature is most useful for frequently accessed archive or reference files, and prevents accidental overwrites. The factory default for the drive is with no jumper installed on these pins and the drive can be written to unless protected by application software

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