Best Hard Drive Manufacturer: What Backblaze Data Says About WD, Seagate and Toshiba

There are only three companies left that make hard drives: Western Digital, Seagate and Toshiba. Based on the largest public reliability data set, Backblaze’s Drive Stats, which tracks more than 340,000 drives in its data centers, Western Digital and Toshiba currently post lower failure rates than Seagate across the drive models Backblaze runs, and older HGST drives, a brand Western Digital acquired, sit at the higher end mostly because they are the oldest drives in the fleet. But the gap between individual models is larger than the gap between brands, and drive age matters as much as the name on the label. The best hard drive manufacturer for you is the one making a well regarded model at the capacity you need, backed by a solid warranty and, above all, a backup.

This guide explains who makes hard drives today, what Backblaze’s numbers show by manufacturer and by model, why those numbers need careful reading, and how to choose a drive for a desktop, NAS or backup. Reliability figures come from Backblaze Drive Stats for Q1 2026, published July 9, 2026, and Backblaze Drive Stats for 2025. Industry background comes from Wikipedia’s hard disk drive article. The per manufacturer failure rates in this article are our own totals calculated from Backblaze’s per model tables.

The short answer

• Only three manufacturers remain: Western Digital, Seagate and Toshiba, according to Wikipedia.
• Lowest failure rates in Backblaze’s current data: Western Digital, followed by Toshiba, in both the Q1 2026 quarter and the lifetime figures, by our calculation.
• Seagate: the largest share of drive models in Backblaze’s fleet, with a wide spread, from some of the best individual results to some of the worst.
• HGST: a former brand of Western Digital. Its drives in Backblaze’s fleet are the oldest, which pushes failure rates up.
• Model beats brand: within each manufacturer, some models fail several times more often than others.
• Whatever you buy, back it up. Every manufacturer’s drives fail sometimes.

Who actually makes hard drives today

Wikipedia notes that more than 200 companies have made hard drives over time, but consolidation has concentrated production into just three manufacturers today: Western Digital, Seagate and Toshiba. It adds that hard drive unit shipments peaked at 651 million in 2010 and fell to 166 million in 2022, with Seagate holding the largest share of units at 43 percent in that data.

Many familiar storage names are brands or product lines rather than separate drive makers. HGST is a good example: Wikipedia explains that HGST, originally Hitachi Global Storage Technologies, was acquired by Western Digital in 2012, and the brand was phased out in 2018. External drives and NAS enclosures sold under other names still use a hard drive from one of the three manufacturers inside.

Why Backblaze data is the best public guide

Most reliability claims are anecdotes: one person’s drive failed, so the brand is bad. Backblaze, a cloud storage company, is different because it runs hundreds of thousands of drives and publishes failure data by model every quarter. As of the end of Q1 2026, it was monitoring 345,662 drives used to store data, and after removing boot drives and models that did not meet its criteria, it analyzed 341,263 drives.

Backblaze reports an annualized failure rate, or AFR, which estimates the percentage of drives that would fail over a year. It excludes models with too few drives or too little running time, using minimums of more than 100 drives and 10,000 drive days for quarterly tables, and more than 500 drives and 100,000 drive days for lifetime tables.

Failure rates by manufacturer

Backblaze publishes its figures by model, not by brand. We added up the drive days and failures for each manufacturer’s models in the Q1 2026 report to get manufacturer level rates. These totals only cover the models Backblaze included, and they reflect Backblaze’s particular mix of models and ages.

Figures are our totals from Backblaze’s Q1 2026 quarterly and lifetime tables. Lifetime totals cover the models that met Backblaze’s lifetime criteria, so the model counts differ slightly. The overall rates in the last row are Backblaze’s own.

Why age changes the picture

The last column in the table matters. Backblaze’s Western Digital drives are the youngest in its fleet, averaging a little over two years, while its Seagate and HGST drives average five to almost six years. Older drives tend to fail more, and Backblaze’s 2025 report describes seeing end of life behavior in an older Seagate model and a double digit failure rate in an HGST model that was about seven and a half years old.

So part of Western Digital’s advantage in this data comes from its drives being newer. That does not make the result meaningless. Its newest high capacity models are performing very well so far. But it is a reason not to read the brand totals as a simple ranking of quality.

Model beats brand

Backblaze repeatedly stresses that individual drives within a manufacturer, and even within a single model, can vary quite a bit. The spread in its Q1 2026 data makes that clear.

Seagate’s 16TB ST16000NM001G, with nearly 35,000 drives in the fleet, has a lifetime AFR of 0.68 percent, close to the best Western Digital results. Its 14TB ST14000NM0138 has one of the highest lifetime rates in the table. Choosing a well performing model matters more than choosing a brand.

Who is better, WD or Seagate?

In Backblaze’s current fleet, Western Digital’s models post lower failure rates than Seagate’s overall: about 0.57 percent lifetime versus about 1.67 percent by our calculation. Two important caveats apply. Backblaze’s Western Digital drives are much younger on average, and Seagate’s range includes both some of the best and some of the worst models in the data.

For a buyer, the practical answer is to compare the specific models available at your capacity rather than the brands. A well performing Seagate model can be a better choice than a weaker Western Digital one, and vice versa.

What is the most reliable hard drive brand?

On Backblaze’s Q1 2026 data, Western Digital has the lowest failure rates by manufacturer, with Toshiba second, both in the quarter and over the lifetime of the drives tracked. Toshiba’s result is notable because its fleet in the data is large, over 117,000 drives, and its newest 24TB model posted a 0.22 percent AFR in the quarter, though that model averaged only about four months in service.

Backblaze itself does not declare a winning brand. Its reports focus on models and on the trend that overall failure rates have been improving: the annual AFR for 2025 was 1.36 percent, down from 1.55 percent in 2024. In its Q1 2026 report, it adds that of the 10,220 drives it deployed in the prior quarter, 9,404 were larger than 20TB, and those still young drives posted a 0.85 percent AFR as a pool.

How long do hard drives last?

Backblaze has studied drive lifespan for more than a decade, and the picture has improved. In a lifespan article updated in December 2021, it reported that about 90 percent of its drives had lasted four years and 65 percent were living longer than six years, up from its original finding that 78 percent lived longer than four years.

Its October 2025 update on the classic bathtub curve, the idea that failures are high early, low in middle age and rise again with wear, found that drives are lasting longer. Backblaze reported that the peak failure rate in its 2013 data was 13.73 percent at about three years and three months, and in 2021 it was 14.24 percent at seven years and nine months. In its 2025 data, the peak was 4.25 percent at ten years and three months. In other words, the worst period comes later and is far less severe than it used to be.

For a home user, that suggests a well chosen drive can reasonably be expected to serve for years, but also that no drive lasts forever, and older drives deserve closer monitoring and a replacement plan.

Warning signs and monitoring at home

Backblaze collects SMART statistics, the self monitoring data built into drives, from every drive at the end of each day. You can read the same kind of data at home with free SMART utilities on Windows, macOS and Linux, and many NAS systems check it automatically.

• Reallocated or pending sectors: rising counts suggest the drive is working around damaged areas.
• New clicking, grinding or repeated spin up sounds are a reason to copy data off immediately.
• Files that fail to copy or open, or a drive that disappears and reappears, can signal trouble.
• Very slow performance on a drive that was fine before can indicate retries on failing sectors.

If you see any of these, back up first and troubleshoot second. A failing drive can get worse quickly under heavy use.

External drives: what is inside matters

Because only three companies make hard drives, the drive inside an external enclosure comes from Western Digital, Seagate or Toshiba, even when the box carries another name. External drives also face conditions data center drives never do: being carried, dropped, unplugged mid write, and left in warm bags. For portable drives, sturdiness and your backup routine matter at least as much as the brand, and keeping two copies on separate drives is the safest habit.

How to read Backblaze data as a home user

• These are data center drives. The models are mostly enterprise and data center lines, running around the clock in managed racks. A desktop or external drive is used very differently.
• Small fleets swing wildly. Backblaze notes that when only 129 drives of a model remain, a single failure pushed its quarterly AFR to 3.61 percent. Low drive counts make percentages unstable.
• Lifetime beats quarterly. Quarterly numbers are noisy. Lifetime figures, with more drive days behind them, are more reliable.
• Failure is managed. Backblaze describes its failure rates as the result of people actively managing risk in a controlled environment, including qualifying drives before use.
• Some failures may be missed. Backblaze explains that its system likely under reports day one failures, because a drive must survive its first day to be counted.

Western Digital

Western Digital is one of the three remaining manufacturers and, since 2012, the owner of the former HGST business, according to Wikipedia. In Backblaze’s Q1 2026 data, its five WDC labeled models totaled about 87,700 drives with the lowest failure rates of any manufacturer, including a 22TB model with more than 45,000 drives at a 0.38 percent quarterly AFR. Backblaze also highlighted its first 26TB drive, a Western Digital model, as starting off strong in its 2025 report.

Seagate

Seagate had the largest share of hard drive units in the Wikipedia market data and the largest number of models in Backblaze’s quarterly table, 15. Its results are the most varied. Several of its models, such as the 16TB ST16000NM001G and 12TB ST12000NM001G, post low failure rates across tens of thousands of drives, while some older and specific models fail far more often. Backblaze’s 2025 report attributed the high rate of one older 10TB Seagate model to end of life behavior.

Toshiba

Toshiba is the third remaining manufacturer and had the largest single manufacturer fleet in Backblaze’s Q1 2026 table, over 117,000 drives across eight models. Its large 14TB and 16TB pools sit around 1 percent AFR, and its newer 20TB and 24TB models post lower rates so far. Backblaze’s 2025 report did flag one 16TB Toshiba model among its red flags for the quarter, a reminder that model level checks apply to every brand.

HGST and older drives

HGST drives still appear in Backblaze’s data because many were installed years ago. They are now the oldest drives in the fleet, averaging almost six years by our calculation, which is a large part of why their rates are higher. You are unlikely to buy a new HGST branded drive today, since Wikipedia notes the brand was phased out in 2018, but the lineage continues in Western Digital’s data center drives.

Choosing a drive by use case

For speed, a solid state drive is the better tool. Our guides to the best 2TB NVMe SSDs and the best 500GB SSDs cover fast options, while hard drives remain the value choice for bulk storage.

What matters more than the brand

• The specific model: check Backblaze’s tables for the model or a close sibling if it is listed.
• The drive line: desktop, NAS and data center lines are built for different workloads.
• Warranty length: longer warranties are common on NAS and data center lines.
• Cooling and placement: drives in hot, cramped enclosures work harder.
• Monitoring: SMART health tools can warn of trouble. Backblaze’s own system collects SMART data from every drive daily.
• Backups: the only real protection against any drive failing.

Backups: the real reliability strategy

Even the best model in Backblaze’s data fails at a measurable rate every year across a large fleet. Backblaze notes that it accepts some level of hardware failure because its software prevents data loss. At home, your backup plan plays the same role. Keep at least one copy of important files on a separate drive, and ideally another copy off site or in the cloud, so a single failure is an inconvenience rather than a disaster.

For console storage, where drives are also a convenience rather than an archive, our guide to external SSDs for PS4 covers faster alternatives to hard drives.

Hard drive capacity and marketing

One thing is the same across all three manufacturers: advertised capacity. Wikipedia explains that drive makers state capacity in decimal units, where one gigabyte is one billion bytes, while most operating systems report capacity in binary units, so a new drive shows a smaller number than on the box. That is not a defect, and it is not a reason to prefer one brand over another.

Common myths about hard drive brands

• “My drive failed, so the brand is bad.” One failure says little. Backblaze’s data shows every manufacturer has both strong and weak models, and every model fails at some rate across a large fleet.
• “Bigger drives are less reliable.” Backblaze’s recent data points the other way so far: its Q1 2026 report says the drives above 20TB it deployed in the prior quarter posted a 0.85 percent AFR as a pool, though they are still young.
• “A brand new drive will not fail.” Early failures are one side of the bathtub curve Backblaze describes, and it notes its own numbers probably under count day one failures. Copy important data to a new drive only after it has run for a while, and keep the old copy until then.
• “The name on the box made the drive.” With only three hard drive manufacturers, the logo on an external enclosure may not be the company that built the drive inside.
• “A good brand means no backup is needed.” No reliability figure is zero. Backups are the only guarantee.

How to choose your next hard drive

1. Decide the job: desktop, NAS, backup or portable.
2. Choose the drive line built for that job from any of the three manufacturers.
3. Pick a capacity with room to grow.
4. Look up the model, or its closest relative, in Backblaze’s latest tables, favoring lifetime figures with large drive counts.
5. Compare warranty terms.
6. Plan your backup before the drive arrives.

Frequently asked questions

Pick from the three manufacturers based on the specific model’s track record, choose the drive line built for your job, and never trust a single drive with data you cannot replace.