ST1000DM014 - CMR or SMR?

SMR

The Seagate BarraCuda 1TB (ST1000DM014) uses SMR recording.

Verified against: Seagate BarraCuda 3.5in data sheet DS2131 ยท Checked

Sources disagree on this model

Added to the BarraCuda datasheet at Rev K, September 2020, as the shingled successor to the conventionally-recorded ST1000DM010.

What this means for you

Shingled recording overlaps tracks like roof tiles to raise density. Reading is unaffected, and for sequential work, archives, media libraries, backup targets, files written once and read many times, this drive is genuinely fine and the saving is real. The problem is sustained random writing, because modifying data under an existing track can force the tracks above it to be rewritten too. A RAID rebuild or a ZFS resilver is hours of exactly that pattern with no idle time to recover, so a 1TB ST1000DM014 in an array can extend a rebuild dramatically, and the rebuild window is precisely when the array has no redundancy left. Do not put this drive in a NAS or a parity array.

Specifications

Model numberST1000DM014
BrandSeagate
FamilyBarraCuda
Capacity1TB
Form factor3.5"
Rotational speed7200 RPM
Cache256 MB
Recording technologySMR
Workload rate55 TB/year
Warranty2 years
StatusCurrent
Replaced byโ€”

A dash means the manufacturer does not state that field for this exact model. We leave it blank rather than filling it from a retailer listing.

Need CMR at this capacity?

If this drive is going into an array, a NAS, or anything that rebuilds, shingled recording is the wrong choice at any price. These are conventionally-recorded drives at this capacity or one step up, in stock right now with live prices.

DriveCapacityRecording$/TBPrice
ST31000640SS 1TB SAS1TBCMR$14.99$15Buy
508011-001 1TB 6G SAS1TBCMR$26.99$27Buy
Dell 9W5WV 1TB SAS 2.51TBCMR$37.62$38Buy

Verified CMR model numbers at this size: ST1000VX005, DT01ACA100, HDWD110, WD10EZEX.

Related models

Other BarraCuda capacities
ST500DM009500GBCMRST1000DM0101TBCMRST2000DM0062TBCMRST2000DM0082TBSMRST2000DM0052TBSMRST3000DM0073TBSMRST3000DM0083TBSMRST4000DM0044TBSMRST6000DM0036TBSMRST8000DM0048TBSMRST12000DM00112TBCMRST16000DM00116TBCMR
The same capacity from other makers
DT01ACA1001TBCMRHDWD1101TBCMRWD10EZEX1TBCMR
Share:WhatsAppFacebookPost on X

Frequently asked questions

Is the ST1000DM014 CMR or SMR?

It is SMR. That comes from Seagate BarraCuda 3.5in data sheet DS2131, which is Seagate's own documentation for this exact part number rather than a capacity-level summary or a retailer listing.

Can I use the ST1000DM014 in a NAS or RAID array?

We would not. Shingled recording turns a rebuild into hours of the write pattern it handles worst, which can extend the window during which your array has no redundancy. For sequential and archival use outside an array this drive is fine.

What should I buy instead of the ST1000DM014 for a NAS?

A conventionally-recorded drive at 1TB or one step up. The table above lists what is in stock right now with live prices, and every model number linked there has its own verified page with the manufacturer source.

Check another model โ†’
Paste any part number
Full CMR/SMR list โ†’
Every drive we track, live prices
Decode a model number โ†’
What the letters mean
Is SMR OK for NAS? โ†’
The honest answer