HGST HUC109030CSS600 2.5″ hard drive with a storage capacity of 300 GB and featuring a SAS interface. HGST HUC109030CSS600 Ultrastar C10K900 300 GB 2.5″ Internal Hard Drive SAS 6 Gb/s 10000 RPM 32 MB Buffer.
All information about the HGST HUC109030CSS600 hard disk drive: technical parameters, failure symptoms, frequently asked questions, reviews, HDD repair and data recovery.

HGST HUC109030CSS600 Technical Details:
Note: The HGST HUC109030CSS600 is part of the Ultrastar C10K900 series, an enterprise-class 2.5″ SAS hard drive line. The “C10K” designation indicates 10000 RPM for high-performance enterprise applications. These drives were designed for mission-critical servers, high-transaction databases, and data center storage requiring low latency and high reliability.
HGST HUC109030CSS600 Hard Drives:
- HUC109030CSS600 – 300 GB SAS 2.5″ Enterprise Hard Drive, Ultrastar C10K900 series
- Model code breakdown: HUC10 (Ultrastar C10K900) + 9030 (300 GB capacity) + CSS600 (specific variant)
- Interface: SAS 6 Gb/s (dual-port)
- Common firmware revisions: J384A00, J384A01
- Recommended usage: Enterprise servers, high-transaction databases, data centers
HGST HUC109030CSS600 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;
- Drive spins but produces rhythmic clicking – typical of head failure.
SAS-Specific Symptoms:
- Drive not recognised by SAS controller;
- SAS link negotiation failures;
- Drive drops from RAID array unexpectedly.
Logical Failure Examples:
- Accidental deletion, accidental format, file corruption;
- File system corruption.
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 CRC errors.
Complex Failure Model
(A combination of two or more of the above failure types)
HGST HUC109030CSS600 Data Recovery & HDD Repair:
This enterprise SAS drive has a separate ROM/NVRAM chip on the PCB. SAS drives require specialized controllers for access. 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: HUC109030CSS600
- PCB part number: Common numbers include 0B25010, 0B25011
- Firmware revision: e.g., J384A00, J384A01
⚠️ Critical Note: SAS drives are not compatible with standard SATA controllers. Data recovery requires specialized SAS equipment. You MUST transfer the original ROM chip from the old PCB to the new donor board.
Common Failure Scenarios:
Repair Options by Failure Type:
Frequently Asked Questions (FAQs):
Q: Is the HUC109030CSS600 a SATA or SAS drive?
A: It is a SAS (Serial Attached SCSI) drive, not compatible with standard SATA controllers.
Q: What is the capacity and RPM?
A: 300 GB and 10000 RPM (10K enterprise performance).
Q: My drive clicks. What’s wrong?
A: Clicking indicates head failure. Seek professional data recovery.
User Reviews & Summary:
Pros:
– 2 million hour MTBF – exceptional enterprise reliability
– 10000 RPM – very high performance
– SAS interface – dual-port for redundancy
– 32 MB cache
– Designed for 24/7 mission-critical operation
Cons:
– 300 GB capacity is small by modern standards
– SAS requires specialized controllers
– Discontinued – used only
– Higher power consumption than SATA drives
Final Verdict:
The HGST HUC109030CSS600 is a high-performance enterprise SAS drive. Data recovery requires specialized equipment and expertise.