Toshiba MG11 24TB versus Seagate Exos X24 is a conventional enterprise CMR comparison. Unlike MA11, HC680 or 36TB host-managed SMR pages, this decision is mostly about vendor ecosystem, interface, price, availability and fleet support.
Both are credible 24TB enterprise nearline choices for servers, shelves, backup repositories, object stores and ZFS pools when the exact model, interface and sector format are qualified.
Choose Toshiba MG11 24TB when its live price, SATA/SAS variant and Toshiba fleet standardization fit your environment. Choose Seagate Exos X24 when Exos availability, existing support, replacement stock or Seagate ecosystem preference matters more. Both are conventional CMR paths, so the winner is procurement fit rather than SMR compatibility.
Use this as the procurement-level screen before looking at live price rows.
| Decision point | MG11 24TB | Exos X24 24TB |
|---|---|---|
| Architecture | CMR / FC-MAMR | CMR Exos X24 enterprise |
| Capacity | 24TB | 24TB |
| Interface | SATA and SAS variants | SATA and SAS variants by suffix |
| Cache/buffer | 1GiB | 512MB class by SKU |
| Workload | 550TB/year | 550TB/year class |
| Best use | Toshiba-standardized CMR fleets | Seagate Exos-standardized fleets |
| Main limitation | Stock depth can be thinner | Exact suffix still controls interface/format |
| Decision metric | Live $/TB and availability | Live $/TB and fleet support |
This shows the capacity delta only. The financial answer comes from the live $/TB rows on the page.
| Drive count | MG11 24TB raw | Exos X24 24TB raw | Raw delta |
|---|---|---|---|
| 4 bays | 96TB | 96TB | 0TB |
| 6 bays | 144TB | 144TB | 0TB |
| 8 bays | 192TB | 192TB | 0TB |
| 12 bays | 288TB | 288TB | 0TB |
One exact live row is currently matched for ST24000NM002H, but both sides of MG11ACA24TE / ST24000NM002H are not simultaneously in exact live stock. Relevant live alternatives are shown below for pricing context.
Live prices · updated every 4-5 hours · last checked 7 hr ago · one side may be unavailable in exact live stock
| Model | Capacity | Recording | RPM | Workload TB/yr | Warranty | $/TB | Price | |
|---|---|---|---|---|---|---|---|---|
| 24TB ST24000NM002HREFURB | 24TB | CMR | 7,200 | 550 | 5 yr | $29.17 | $700 | Buy |
| 22TB ST22000NM001HREFURB | 22TB | CMR | 7,200 | 550 | 5 yr | $27.27 | $600 | Buy |
| 24TB ST24000NM000H | 24TB | CMR | 7,200 | 550 | 5 yr | $58.37 | $1401 | Buy |
Workload rating is recorded per part number from Seagate's datasheet for that exact model, not blanketed across the line — two drives of the same capacity can differ because they are different generations. A dash means the figure is not stated for that listing. Recording technology comes from the manufacturer's published CMR/SMR list; a model absent from that list is shown as UNVERIFIED rather than guessed. Rows priced above 3× this line's in-stock median are flagged and excluded from the winner callout and from every median we compute.
This table is computed from live DatacenterDisk rows when an exact in-stock match exists. It is intentionally blank for unavailable models rather than filled with stale prices.
| Live model | Drive price | $/TB | 100TB raw target | 500TB raw target | 1PB raw target |
|---|---|---|---|---|---|
| ST24000NM002H | $700 | $29.17 | 5 drives / $3500 | 21 drives / $14700 | 42 drives / $29400 |
This is the cleanest Toshiba comparison in the batch because both sides are conventional CMR enterprise drives at 24TB. That makes them appropriate candidates for many normal storage stacks once exact interface and sector format are handled.
The performance story should stay modest. Manufacturer transfer-rate figures are useful, but real workloads are shaped by enclosure, controller, filesystem, caching and failure handling. Do not invent benchmark differences from family names.
Seagate Exos usually has deeper market availability on DatacenterDisk. Toshiba can still win when a specific MG11 row is priced well or when a buyer has a Toshiba-standardized fleet.
Fleet preference matters because spares, support scripts, firmware processes and warranty handling become simpler when a shop standardizes. The best drive is often the one operations can replace correctly at 2 a.m.
For TrueNAS, ZFS and conventional RAID, both families are far easier to reason about than host-managed SMR drives. The remaining checks are SATA versus SAS, sector format, power budget, cooling, exact model support and live price.
In dense chassis, calculate cost per protected TB. At equal 24TB capacity, live price and operational preference do most of the work.
Yes for the 24TB families compared here. The exact model still has to be verified for interface and format.
Either can fit a conventional TrueNAS build if the exact SATA/SAS model and sector format are supported. Price, availability and fleet preference decide.
No. It is a useful specification difference, but real storage performance depends on workload and system design.
No. Price per TB is the first screen, not the whole decision. Match recording method, interface, bay count, firmware support, warranty position and rebuild risk before accepting the cheapest row.
Specification claims on this page were checked against the pages below on 1 September 2026. Where a widely-repeated figure did not survive that check, we report what the source says now and say so in the text rather than repeating the familiar number.