Seagate IronWolf Pro 10TB NAS Hard Drive

Model ST10000NE0008-2PL103 | Serial ZLW08VGR | Firmware EN02

10TB | SATA III 6.0Gb/s | 7200 RPM | 256MB cache | CMR, not SMR | 3.5"

Pulled from a working QNAP NAS, wiped with a full single-pass zero write across the entire 10TB drive over a native SATA connection, then re-tested with DriveDx. The complete condition report, with SMART data from before and after the wipe, is attached to this 0. Pending 0. Offline uncorrectable 0. Reported uncorrectable 0. Spin retries 0. Multi-zone errors 0. UDMA CRC errors 0. Command timeouts 0.

Internal error log empty. Self-test completed without error. DriveDx health GOOD, 100%, 0 issues found.

Every media health counter remained at zero after the full-capacity write test.

USAGE

46,960 power-on hours with 97 power cycles.

Head flying hours are 38,951 of 46,960, or about 83% of powered time.

Lifetime workload is approximately 166TB/year against a 300TB/year rating, or about 55% of rated duty.

Lifetime data written: 121.0TB

Lifetime data read: 770.6TB

This drive had a read-dominated workload, with roughly six times as much data read as written.

Lifetime temperature range: 17-49 C.

LOAD CYCLE COUNT

SMART Attribute 193 reads 125,684 load cycles. This is about 21% of the drive family’s 600,000-cycle rating.

Some SMART tools may display this attribute as an amber value because the normalized value is 38, but the total cycle count remains well below the rated limit.

NOTE ON SEAGATE SMART VALUES

Seagate Raw Read Error Rate and Seek Error Rate raw values are packed composite counters and should not be interpreted as literal error totals.

The normalized values for this drive are 82 and 81 against thresholds of 44 and 45, both within specification.

WARRANTY

The original Seagate warranty expired April 14, 2026.

This is not a recertified unit. The physical label and drive firmware both identify it as ST10000NE0008.

Full testing details, SMART data, and before/after results are included in the attached condition report.