The most reliable hard drives of 2017

SeaGate Hard Drive

Backblaze – a backup solutions provider – has released its hard drive reliability statistics for the first quarter of 2017.

It compared hard drives from multiple manufacturers: Seagate, Western Digital, Toshiba, and HGST.

Reliability was measured in an annualized failure rate, calculated using the number of drive failures relative to the total number of drives.

Backblaze recorded the failure rates of its hard drives over Q1 2017, along with the drives’ lifetime reliability based on their failure rates since April 2013.

2017 Failure Rates

The failure rates for hard drives from 1 January to 31 March 2017 are below.

Model
Drive Count Drive Days Drive Failures Annualized Failure Rate
3TB Hard Drives
Toshiba DT01ACA300 46 3,956 0 0.00%
HGST HDS5C3030ALA630 4,380 383,788 10 0.95%
WD WD30EFRX 1,025 94,973 3 1.15%
HGST HDS723030ALA640 974 83,918 4 1.74%
4TB Hard Drives
WD WD40EFRX 46 3,956 0 0.00%
HGST HDS5C4040ALE630 2,624 232,760 1 0.16%
HGST HDS5C4040ALE640 8,482 644,282 6 0.34%
HGST HDS5C4040BLE640 15,339 959,967 37 1.41%
Toshiba MD04ABA400V 146 12,551 1 2.91%
Seagate ST40000DM000 34,540 2,981,251 267 3.27%
Seagate ST40000DX000 170 15,261 15 35.88%
5TB/6TB Hard Drives
Toshiba MD04ABA500V (5TB) 45 3,870 0 0.00%
Seagate ST60000DX000 (6TB) 1,891 162,506 3 0.67%
WD WD60EFRX (6TB) 443 38,271 3 2.86%
8TB Hard Drives
HGST HUH728080ALE600 45 3,870 0 0.00%
Seagate ST8000DM002 9,861 815,494 23 1.03%
Seagate ST8000NM0055 2,459 37,559 2 1.94%

Lifetime Failure Rates

The annualized failure rates for each hard drive using data collected since 2013 are detailed below.

Model
Drive Count Annualized Failure Rate
3TB Hard Drives
HGST HDS5C3030ALA630 4,380 0.84%
HGST HDS723030ALA640 974 1.96%
Toshiba DT01ACA300 46 3.89%
WD WD30EFRX 1,025 5.63%
4TB Hard Drives
HGST HDS5C4040ALE640 8,482 0.64%
HGST HDS5C4040BLE640 15,339 0.68%
HGST HDS5C4040ALE630 2,624 0.88%
Toshiba MD04ABA400V 146 1.50%
WD WD40EFRX 46 2.28%
Seagate ST40000DM000 34,540 3.00%
Seagate ST40000DX000 170 7.51%
5TB/6TB Hard Drives
Seagate ST60000DX000 (6TB) 1,891 1.30%
Toshiba MD04ABA500V (5TB) 45 2.34%
WD WD60EFRX (6TB) 443 5.59%
8TB Hard Drives
Seagate ST8000DM002 9,861 1.60%
HGST HUH728080ALE600 45 2.10%
Seagate ST8000NM0055 2,459 2.38%

This article first appeared on MyBroadband and is republished with permission.

Now read: Selecting a hard drive: SSD vs HDD

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