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Short answer: the ST24000NM002H is a 24TB SATA hard drive from Seagate's Exos X24 line. Here are the questions people ask most.
It's the standard ISE model of the Exos X24 SATA drive. It spins at 7200 RPM, carries a 512MB cache, and records with CMR in a helium-sealed case. Seagate rates it for 550TB of workload a year and a 2.5 million hour MTBF.
No. The ST24000NM000C is a different part number. It appears in Seagate's recertified Exos data sheet. Many listings call it an X24, so read the model on the label. The ST24000NM002H is the one Seagate lists as the Exos X24.
ISE is Instant Secure Erase. It lets you wipe the drive in seconds before you retire it. The self-encrypting version is the ST24000NM001H.
Both are possible. The drive arrives as 512e. Seagate's FastFormat command switches it to 4Kn and erases the drive, so move your data first.
Yes. The SAS model is the ST24000NM007H. It adds a second port and runs at 12Gb/s.
CMR. Rewrites stay steady, which matters in RAID and ZFS.
The Exos X22 (ST22000NM001E) holds 22TB. It shares the 285 MB/s speed, the 512MB cache, and the 2.5 million hour MTBF. The X24 adds 2TB per bay.
No. It is a standard SATA 6Gb/s drive. SATA ports, and SAS controllers that accept SATA drives, will run it.
Reading every sector of 24TB at the rated 285 MB/s takes roughly 23 hours. A rebuild on a busy array takes longer.
Seagate lists a 0.35% annualized failure rate and one unrecoverable read error per 10E15 bits. Those are group figures, not a promise for one drive.
| Brand | Seagate |
|---|---|
| Series | Exos X24 |
| Capacity | 24TB |
| Interface | SATA 6Gb/s |
| Spindle speed | 7200 RPM |
| Cache | 512MB |
| Sector format | 512e / 4Kn (FastFormat) |
| Sustained transfer | Up to 285 MB/s |
| Idle power | 6.3 W |
| Operating temperature | 10 to 60°C |
| Weight | 685 g |
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Specifications, part number, condition and included accessories are stated on this page.
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