Seagate · Desktop drive · ST3000DM007
Seagate BarraCuda 3TB
A desktop drive. Seagate sells it for PCs and gives it no NAS rating.
- Capacity
- 3 TB
- Recording
- SMR
- Speed
- 5,400 rpm
- Warranty
- 2 years
- Workload
- 55 TB/yr
- Failure rate
- No failure data
Good for
- A PC, or a backup copy you plug in now and then
Not for
- A NAS (Seagate gives it no NAS rating)
- Heavy daily writes (55 TB a year rating)
- Parity arrays (RAID 5/6, SHR, RAIDZ)
Updated 27 Oct 2026 · Method 2.0
Who the BarraCuda 3 TB is for
Fine as the data drive in a desktop, or a backup copy that sits on a shelf. Either way that's light work for a 55 TB a year rating.
Watch out for
Seagate doesn't rate it for NAS use at all, which rules it out for an array as far as we're concerned. SMR as well, which is the other reason to keep it out of an array.
No Backblaze failure rate for this one. They don't run enough of them, if any, for a figure worth quoting. Seagate's datasheet puts it at 26 dB idle and 27 dB seeking. Power draw is 2.5 W idle and 3.7 W working on Seagate's figures, or 22 kWh a year if it spends the whole year idling.
Specifications
Each value links to the Seagate page or datasheet it came from.
Sources: seagate.com