DatacenterDisk

Seagate 4TB (ST4000NM0023): Recording Status

We have not found a manufacturer document stating the recording technology for this exact part number. We know what the drive is - a Seagate 4TB SAS-6G hard drive (3.5") that we track - but a recording technology printed without a source is a guess, and for RAID, NAS or ZFS use that guess is the one that matters. That is a statement about what we have found, not about what Seagate has published.

What the part number decodes to

Part-number reference: ST4000NM0023 — decoded segments, sibling variants and the warranty check. Live rankings this model belongs to: every 4TB hard drive · 4TB SAS drives · Seagate 4TB SAS. Product pages for this part number: Seagate Constellation ES 4TB SAS 6G · Seagate Constellation ES 4TB SAS 6G (no current offer).

We hold no SAS model with a sourced recording technology to compare against, and a drive on a different interface would not be a fair comparison - so there is no nearest-model link here.

MakerSeagate
Capacity4TB
InterfaceSAS-6G
Recording technologyNo maker source found

In stock now at $199.00 (new). Buy on Amazon · listing details

How to settle it for this drive

Read the model number on the drive's own label, then find Seagate's data sheet or product manual for that family. A document that prints ST4000NM0023 in its own row of a recording-technology table settles the question. A family page that names no part numbers does not: we have found maker pages that list neither a part number nor a recording method, and we no longer count them as sources. A retailer listing is not a source either - it is a seller's description, and sellers repeat what other listings say.

Documented Seagate drives at 4TB

These Seagate part numbers at the same capacity do have a maker document on record. They are listed for comparison, not as an answer for ST4000NM0023: two part numbers at one capacity can use different recording methods.

When a source turns up

When we find a maker document that names ST4000NM0023, this page will state the answer with that document linked and the date we read it, the same way our documented pages do. Until then, the honest answer is that we do not know.

In-stock drives with sourced CMR, 4TB and up