Seagate IronWolf Pro ST6000NT001 6TB 3.5 inch SATA 6Gb/s NAS Hard Drive CMR 7200RPM 256MB Cache Unlimited Bays
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Seagate
Seagate IronWolf Pro ST6000NT001 6TB 3.5 inch SATA 6Gb/s NAS Hard Drive CMR 7200RPM 256MB Cache Unlimited Bays
€525.81 inc. VAT
ST6000NT001
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Seagate IronWolf Pro 6TB — ST6000NT001 NAS Hard Drive
6TB 3.5" SATA 6Gb/sUnlimited Bays, 550 TB/Year2M-Hour MTBF, 24x73-Year Rescue Included
The Seagate ST6000NT001 is a 6 TB 3.5-inch IronWolf Pro NAS hard drive built for multi-bay network storage that runs continuously — rated for a 550 TB annual workload, 8760 power-on hours a year and, unusually for a NAS drive, an unlimited number of drive bays. Seagate lists it under part number ST6000NT001 with EAN 8719706432344 and UPC 763649176320; the EAN on this listing is 8719706432344. It is a conventional-recording (CMR) air-filled drive at 7200 RPM with 256 MB of cache, rotational vibration sensors and AgileArray firmware, and it ships with three years of Rescue Data Recovery Services. It is built on Seagate’s conventional air-filled platform — helium starts at 12 TB in this range — across 6 heads and 3 discs. Typically in stock with fast delivery across Cyprus.
Compatibility — check before buying:
NT is the current IronWolf Pro tier, and it is not the same as the older NE parts. Seagate’s own datasheet prints them side by side: NT is rated at 550 TB per year with a 2,500,000-hour MTBF and unlimited bays, while NE at the same capacity is 300 TB per year, 1,200,000 hours and a 24-bay ceiling. Listings that quote 300 TB or a bay limit against an NT part number are carrying the older figures across. One specification trap is Seagate’s own doing. The front page of the IronWolf Pro datasheet carries a blanket bullet claiming 2.5 million hours MTBF for the range, but the specification table on the same document prints 2,000,000 hours for 10 TB and below, and the product manual independently states 2,000,000 hours with a 0.44% annualised failure rate. The 2.5-million figure and the 0.35% AFR apply from 12 TB upwards. We publish the table values. The same boundary applies to the drive design: this 6 TB model is air-filled, not helium, and listings that carry helium wording onto it are copying from the larger capacities or from the older NE generation. Two more things to know: NTZ is a different SKU, not a synonym — those are Seagate’s frustration-free-packaging versions and carry their own EANs; and Rescue Data Recovery, while bundled for three years, is covered by Seagate’s footnote that the service is not available in all countries, so confirm availability rather than relying on it. No self-encrypting version is published under this part number.
Best For
✓ Multi-bay NAS enclosures running 24 hours a day
✓ RAID arrays where rebuild reliability matters — 1 unrecoverable error per 10E15 bits
✓ Small-business file, backup and virtualisation storage
✓ Racks and towers with vibration from many spindles — RV sensors are fitted
✓ Media libraries and archives that keep growing
✓ Systems using IronWolf Health Management on supported NAS platforms
Key Features
Unlimited bays and a 550 TB annual workload
This is the specification that separates IronWolf Pro NT from both consumer drives and the older NE generation. Seagate publishes unlimited for the maximum number of drive bays, a 550 TB per year workload rate limit and 8760 power-on hours — a full year of continuous operation. Rotational vibration sensors are fitted, which is what makes dense multi-drive chassis practical.
550 TB a year, 2 million hours MTBF
The workload rating is 550 TB per year against 8760 power-on hours, with an annualised failure rate of 0.44% and an unrecoverable read error rate of one sector per 10E15 bits read — ten times better than desktop-class drives, which matters directly to rebuild reliability in a large array. Load/unload cycles are rated at 600,000.
CMR construction with 256 MB of cache
This is a conventional magnetic recording drive at 7200 RPM with 256 MB of cache and a sustained transfer rate of 250 MB/s at the outer diameter, built on 6 heads across 3 discs. Sector format is 512e. The all-CMR construction is the reason sustained multi-stream writes and RAID rebuilds behave predictably, which is exactly where SMR drives fall down.
AgileArray firmware and IronWolf Health Management
AgileArray adds dual-plane balancing, RAID-optimised error recovery and time-limited error recovery so the drive does not drop out of an array while retrying a sector. IronWolf Health Management, supported on leading NAS platforms, reports on prevention, intervention and recovery. Three years of Rescue Data Recovery Services are bundled, subject to regional availability.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
IronWolf Pro sits between a consumer NAS drive and a data-centre Exos, and the NT generation moved that line meaningfully. The 550 TB annual workload and the unlimited bay rating are the same numbers Seagate quotes for Exos — what you give up against Exos is the SAS option, the self-encrypting variants and some power-management granularity, and what you gain is three years of Rescue Data Recovery, which Exos does not include at all. At 6 TB you are below Seagate’s helium boundary and below its 2.5-million-hour MTBF tier, both of which start at 12 TB — but the workload rating and the unlimited bay support, which are what actually distinguish IronWolf Pro, are unchanged. Compare capacities across our NAS hard drives, and if the array is destined for a rack rather than a NAS chassis, look at the enterprise and server hard drives instead.
Buyer’s Guide
Buy it if
You are filling a multi-bay NAS that runs continuously and you want the endurance to match: 550 TB per year, unlimited bays, 2,500,000-hour MTBF, one unrecoverable error per 10E15 bits, rotational vibration sensors and AgileArray firmware, with three years of Rescue Data Recovery bundled. At 6 TB it is the entry point of the Pro tier, which suits a four- or six-bay business NAS where capacity per bay is not the binding constraint.
Skip it if
The drive is going into a desktop, a single-bay enclosure or a backup drive that spends most of the week powered down — a consumer drive costs less and the Pro endurance would go unused. Skip it too if the target is a surveillance recorder, where SkyHawk AI is the correct family, or a SAS backplane, since IronWolf Pro is SATA only.
Also consider
ST8000NT001, ST10000NT001 or ST12000NT001 for more capacity per bay — note the 12 TB moves up to helium and a 2,500,000-hour MTBF. Plain IronWolf costs less but is rated at 180 TB per year with an eight-bay ceiling and a three-year warranty. There is no frustration-free-packaging NTZ variant at 6 TB.
Features - Seagate - ST6000NT001
Form Factor
- 3.5",
- Internal
Interface
- SATA
More Details
Product Code
04:441313
EAN Code
8719706432344
Manufacturer
Seagate
Technical specifications
Capacity
6TB