HGST HUA5C3020ALA640 3.5″ hard drive with a storage capacity of 2 TB and featuring a SATA interface. HGST HUA5C3020ALA640 Ultrastar 5K3000 2 TB 3.5″ Internal Hard Drive Serial ATA-600 5400 RPM 32 MB Buffer.
All information about the HGST HUA5C3020ALA640 hard disk drive: technical parameters, failure symptoms, frequently asked questions, reviews, HDD repair and data recovery.
HGST HUA5C3020ALA640 Technical Details:
Note: The HGST HUA5C3020ALA640 is part of the Ultrastar 5K3000 series, an enterprise-class energy-efficient hard drive line. The “5K” designation indicates 5400 RPM for reduced power consumption. These drives were designed for nearline storage, RAID arrays, and data center applications requiring high capacity with moderate power usage.
HGST HUA5C3020ALA640 Hard Drives:
- HUA5C3020ALA640 – 2 TB SATA 3.5″ Enterprise Hard Drive, Ultrastar 5K3000 series
- Model code breakdown: HUA5C (Ultrastar 5K3000) + 3020 (2 TB capacity) + ALA640 (specific variant)
- Common firmware revisions: 5C0, 5C1, 5E0
- Advanced Format: 512e (4K physical sectors)
- Recommended usage: Enterprise nearline storage, RAID arrays, data centers
HGST HUA5C3020ALA640 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;
- Burnt components on PCB – particularly TVS diodes.
Mechanical Failure Symptoms:
- Clicking, grinding sounds;
- Drive spins but produces rhythmic clicking – typical of head failure.
Logical Failure Examples:
- Accidental deletion, accidental format, file corruption;
- File system corruption;
- RAID array drive dropout.
Firmware Failure Symptoms:
- Drive powers up but is not recognised;
- Drive detected with 0 MB capacity.
Bad Platter Area Symptoms:
- Hard disk appears to “hang” or be “sluggish”;
- Constant Cyclic Redundancy Check (CRC) errors.
Complex Failure Model
(A combination of two or more of the above failure types)
HGST HUA5C3020ALA640 Data Recovery & HDD Repair:
This enterprise drive has a separate ROM/NVRAM chip on the PCB. When replacing a faulty PCB, you MUST transfer the original ROM chip.
PCB Replacement Information:
To replace a faulty PCB, match the following:
- Model number: HUA5C3020ALA640
- PCB part number: Common numbers include 0A87091, 0A87092
- Firmware revision: e.g., 5C0, 5C1, 5E0
⚠️ Critical Note: You MUST transfer the original ROM chip from the old PCB to the new donor board. Without this, the drive will not function correctly.
Common Failure Scenarios:
Repair Options by Failure Type:
Frequently Asked Questions (FAQs):
Q: Is the HUA5C3020ALA640 a 3.5″ or 2.5″ drive?
A: It is a 3.5-inch enterprise hard drive.
Q: What is the capacity?
A: 2 TB (approximately 1.81 TB formatted).
Q: What is the RPM and cache?
A: 5400 RPM (CoolSpin) and 32 MB cache.
Q: Is this drive good for NAS?
A: Yes, the Ultrastar 5K3000 series is excellent for NAS and RAID environments.
Q: My drive clicks. What’s wrong?
A: Clicking indicates head failure. Seek professional data recovery.
User Reviews & Summary:
Pros:
– 1.2 million hour MTBF – excellent enterprise reliability
– 5400 RPM – low power consumption
– CoolSpin technology – quiet operation
– 180 TB/year workload rating
– Designed for 24/7 operation
Cons:
– 2 TB capacity is modest by modern standards
– 5400 RPM – slower than 7200 RPM enterprise drives
– Discontinued – used only
Final Verdict:
The HGST HUA5C3020ALA640 (Ultrastar 5K3000, 2 TB) is an energy-efficient enterprise hard drive suitable for nearline storage and RAID arrays. For data recovery, professional assistance is recommended for valuable data.