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Toshiba HDD2187 User Manual Download Page 8

 

 
 

 

6 

SPECIFICATIONS –MK2023GAS (HDD2187)  

General 

Model MK2023GAS 

(HDD2187) 

Interface ATA-2/3/4/5 
Motor 

Fluid Dynamic Bearing (FDB) 

Functionality

 

Formatted Capacity 

20.003GB*

Rotational Speed 

4200rpm 

Avg. Rotational Latency 

7.14/ms 

Spin-up Time 

4sec (typical) 

Buffer 2MB 
Seek Time (Average)  

12  

Internal Transfer Rate 

164.6 ~ 257.1 Mbits/sec (max) 

Host Transfer Rate  

100Mbytes/sec  

*Toshiba defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes. 

 

Internal Drive Characteristics

 

Number of Disks 

1 

Number of Read/Write Heads 

2 

Track Density (TPI) 

72k 

User Data Cylinders 

34,040 

Logical Cylinders 

16,383 

Logical Heads 

16 

Logical Sectors/track 

63 

Bytes per Sector 

512 

Logical Blocks (LBA) 

39,070,080 

Reliability 

Preventative maintenance 

None 

Non-recoverable read errors 

1 error per 10

13

 bits read 

Electrical

  

Voltage 5V 

5% 

Power Consumption

 

Start 4.7W 

typ 

Seek 2.6W 

typ 

Read/Write 2.3W 

typ 

Sleep 0.1W 

typ 

Energy Consumption Efficiency 

0.035W/GB avg  

Shock 

Operating 1,960m/s

2

 (200G)(2msec) 

Non-Operating 7,840m/s

2

 (800G)(1msec) 

Summary of Contents for HDD2187

Page 1: ...TOSHIBA AMERICA INFORMATION SYSTEMS STORAGE DEVICE DIVISION IRVINE CALIFORNIA MK2023GAS HDD2187 2 5 INCH HARD DISK DRIVE USER MANUAL Rev 02 11 2006 ...

Page 2: ...CONTENTS Introduction 1 Setup 2 Using the HDD 4 Troubleshooting 5 Specifications 6 Drive Connectors 8 ...

Page 3: ...ring FDB Motor 1 Platter 20 Gigabytes 9 5mm High 12ms Average Seek Time ATA 2 3 4 5 Interface Supports high transfer rates of 100 MB sec 2MB Buffer Rotational speed of 4 200rpm MTTF 300 000 Hours Toshiba defines a megabyte MB as 1 000 000 bytes and a gigabyte GB as 1 000 000 000 bytes ...

Page 4: ... configuration only one of each per port is used for two drive applications Use the information in the following table before setting drive as Master or Slave Master configuration is obtained by setting jumpers A B C D open no jumper present Slave configuration is obtained by setting jumpers C D When B D jumper is installed the drive is configured as cable select If pin 28 Low the drive is Master ...

Page 5: ...e Avoid touching the interface connector pins and the surface of PCB Be sure to use ESD proof wrist strap when handling drive The four mounting screws should be tightened equally with 0 3N m 3kgf cm torque The depth should be 3 0mm minimum and 3 5mm maximum Placing Hard Drive inside your Computer Determine mounting configuration the drive can be mounted in either a horizontal or vertical orientati...

Page 6: ...4 USING THE HARD DISK DRIVE MK2023GAS HDD2187 Backing up Data Files To avoid data loss regularly back up the data files on the hard disk drive ...

Page 7: ...d party software is available that breaks the capacity barrier Some suggestions are EZ Drive by Micro House and Disk Manager DiskGo by Ontrack Check with your local computer software supplier for availability or contact the software manufacturer How do I install my 2 5 Toshiba Hard Drive into my desktop or tower system You will need a HDD mounting kit in order to install a Toshiba 2 5 drive into y...

Page 8: ...es and a gigabyte GB as 1 000 000 000 bytes Internal Drive Characteristics Number of Disks 1 Number of Read Write Heads 2 Track Density TPI 72k User Data Cylinders 34 040 Logical Cylinders 16 383 Logical Heads 16 Logical Sectors track 63 Bytes per Sector 512 Logical Blocks LBA 39 070 080 Reliability Preventative maintenance None Non recoverable read errors 1 error per 1013 bits read Electrical Vol...

Page 9: ...atory The drive satisfies the following standards Underwriters Laboratories UL 1950 Canadian Standard Association CSA C22 2 No 220 No 950 TUV Rheinland EN 60 950 EMC EN50081 1 EN55022 1988 Class B EN60555 2 1987 A1 EN60555 3 77A Co 38 EMC EN50082 1 IEC 801 2 1991 EIC 801 3 1994 IEC 801 4 1988 ...

Page 10: ... GAP050K11617 or equivalent Recommended Host Side Connector Board Straight type Berg 86455 044 86456 044 or equivalent Cable Berg 89361 044 or equivalent Recommended Cable Characteristics Standard diameter 0 32mm 28AWG Characteristics impedance 100 132ohm Max Length 0 46mm max Capacitance 35pF max cable is not included with drive ...

Page 11: ... 2 14 DD 13 15 DD 1 16 DD 14 17 DD 0 18 DD 15 19 GROUND 20 KEY 21 DMARQ 22 GROUND 23 DIOW STOP 24 GROUND 25 DIOR DMARDY HSTROBE 26 GROUND 27 IORDY DMARDY DSTROBE 28 CSEL 29 DMACK 30 GROUND 31 INTRQ 32 IOCS16 33 DA1 34 PDIAG 35 DA0 36 DA 2 37 CS0 38 CS1 39 DASP 40 GROUND 41 5V LOGIC 42 5V MOTOR 43 GROUND 44 RESERVED Note Symbol in front of signal indicates negative logic ...

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