HGST HUS724020ALA640 3.5″ hard drive with a storage capacity of 2 TB and featuring a SATA interface. HGST HUS724020ALA640 Ultrastar 7K4000 2 TB 3.5″ Internal Hard Drive Serial ATA-600 7200 RPM 64 MB Buffer.

All information about the HGST HUS724020ALA640 hard disk drive: technical parameters, failure symptoms, frequently asked questions, reviews, HDD repair and data recovery.

HGST HUS724020ALA640

HGST HUS724020ALA640 Technical Details:

Manufacturer:
HGST (Hitachi Global Storage Technologies)
Hard Disk Model:
HUS724020ALA640
Disk Family:
Ultrastar 7K4000
Form Factor:
3.5″
Capacity:
2 TB (2,000,000,000,000 bytes)
Formatted Capacity:
Approximately 1.81 TB
Number Of Disks:
3
Number Of Heads:
6
Rotational Speed:
7200 RPM
Average Seek Time:
8.0 ms (read) / 8.6 ms (write)
Disk Interface:
Serial ATA-600 (SATA 6 Gb/s)
Buffer Size:
65536 KB (64 MB)
External Transfer Rate:
600 MB/s
Mean Time Between Failures (MTBF):
2,000,000 hours
Workload Rating:
550 TB/year

Note: The HGST HUS724020ALA640 is part of the Ultrastar 7K4000 series, an enterprise-class 7200 RPM hard drive line. The 7K4000 series was designed for nearline storage, RAID arrays, and data center applications requiring high capacity and reliability. This series features Native 512n sectors and enhanced error recovery for RAID environments.


HGST HUS724020ALA640 Hard Drives:

  • HUS724020ALA640, PN 0F14690, MLC MPKA70, Hitachi 2TB SATA 3.5″ Hard Drive;

HGST HUS724020ALA640 Failure Symptoms:

  • Electrical Failure Symptoms:
    Drive is powered, but shows no sign of function;
    Disk knocking as the motor fails to spin;
    Clicking sound as the heads search or initialize;
  • Mechanical Failure Symptoms:
    Clicking, grinding sounds;
    Completely quiet due to ” motor freeze”;
    “music” tone as the disk is powered up;
  • Logical Failure Examples:
    Accidental deletion, accidental format, file corruption, software bugs, file system corruption, viruses and malware, and many, many more.
  • Firmware Failure Symptoms:
    drive powers up, but is not recognised by the computer;
    Drive powers up, but is recognised wrongly, sometimes with nonsensical characters;
    Drive freezes during booting up;
  • Bad Platter Area Symptoms:
    Hard disk still accessible but appear to “hang” or “sluggish”;
    Constant Cyclic Redundancy (CRC) errors;
    Unable to access folders or files which could be seen;
  • Complex Failure Model

HGST HUS724020ALA640 Data Recovery & HDD Repair:

When it comes to data recovery one of the most common problems HGST HUS724020ALA640 hard drive experience is a burned circuit board (PCB). Therefore, if you need to replace the PCB, be sure to match the “PCB Number” of the current board, such as 220 0A90379 01, etc.

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