The Toshiba MG11 24TB is the top-capacity conventional branch of Toshiba's Mx11 generation. That CMR detail matters because Toshiba also announced MA11 27TB/28TB host-managed SMR drives in the same broad generation.
For conventional enterprise buyers, MG11 24TB is the Toshiba answer to Seagate Exos X24 and WD Ultrastar 24TB/26TB CMR platforms: helium, 7200 RPM, 1GiB buffer, SATA and SAS options, 550TB/year workload class and enterprise reliability targets.
The Toshiba MG11 24TB is a CMR enterprise nearline drive, with SATA models such as MG11ACA24TE and SAS siblings in the MG11SCA24TE family. It is a better fit for normal servers, ZFS, enterprise shelves and NAS-like file storage than MA11 host-managed SMR, provided the exact interface and sector format are supported.
Manufacturer-published values for the exact product family. Retail listings can collapse these details, so match the part number before ordering.
| Spec | Value |
|---|---|
| Model number | MG11ACA24TE, MG11ACA24TEY, MG11ACP24TE, MG11SCA24TE, MG11SCA24TEY, MG11SCP24TE |
| Capacity | 24TB decimal marketed capacity |
| Recording technology | CMR with Toshiba FC-MAMR on a 10-disk helium platform |
| Platform | Toshiba MG11 enterprise nearline generation |
| Interface | SATA 6Gb/s and SAS 12Gb/s variants |
| Sector format | 512e default with 4Kn conversion support by model family |
| Spindle speed | 7200 RPM |
| Cache / buffer | 1GiB |
| Maximum sustained transfer rate | 295MiB/s maximum sustained transfer rate on 24TB and 22TB MG11 references |
| Workload rating | 550TB/year |
| Reliability rating | 2.5M hours MTTF/MTBF; 0.35% AFR class |
| Warranty | 5-year limited warranty on MG enterprise family references |
| Power | SATA 24TB/22TB class around 8.11W read/write and 4.35W active idle; SAS variants are higher |
| Acoustics | 20dB idle / 32dB seek in MG11 overview references |
| Operating temperature | 5C to 55C ambient operating; 5C to 60C enclosure surface |
| Compatibility note | Conventional CMR enterprise drive; still match SATA/SAS, sector format and security suffix. |
No exact in-stock live row is currently matched for MG11ACA24TE, MG11ACA24TEY, MG11ACP24TE, MG11SCA24TE, MG11SCA24TEY, MG11SCP24TE. Relevant live alternatives are shown so the page does not collapse into an empty catalogue.
Live prices · updated every 4-5 hours · last checked 24 min ago · exact model not currently matched in live stock
| Model | Capacity | Recording | RPM | Workload TB/yr | Warranty | $/TB | Price | |
|---|---|---|---|---|---|---|---|---|
| 22TB ST22000NM001HREFURB | 22TB | CMR | 7,200 | 550 | 5 yr | $27.27 | $600 | Buy |
| 22TB ST22000NM001EREFURB | 22TB | CMR | 7,200 | — | 5 yr | $29.09 | $640 | Buy |
| 24TB ST24000NM002HREFURB | 24TB | CMR | 7,200 | 550 | 5 yr | $29.17 | $700 | Buy |
| 22TB ST22000NM001E | 22TB | CMR | 7,200 | — | 5 yr | $29.55 | $650 | Buy |
| 18TB ST18000NM003DREFURB | 18TB | EPMR | 7,200 | 550 | 5 yr | $32.22 | $580 | Buy |
| 20TB ST20000NM007DREFURB | 20TB | CMR | 7,200 | — | 5 yr | $33.50 | $670 | Buy |
| 14TB ST14000NM0018 | 14TB | CMR | 7,200 | 550 | 5 yr | $39.56 | $554 | Buy |
| 16TB ST16000NM002GREFURB | 16TB | CMR | 7,200 | 550 | 5 yr | $39.84 | $637 | Buy |
| 20TB ST20000NM003DREFURB | 20TB | CMR | 7,200 | — | 5 yr | $43.05 | $861 | Buy |
| 12TB ST12000NM002G | 12TB | CMR | 7,200 | 550 | 5 yr | $49.54 | $594 | 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 |
|---|---|---|---|---|---|
| No exact in-stock row is available right now. Use the availability table for nearby live alternatives, then re-check the exact model before ordering. | |||||
Raw capacity is not usable capacity. This table shows the slot-level math before filesystem overhead, snapshots, reserved space and vendor-specific parity layouts.
| Drive count | Raw capacity | Single-parity usable | Dual-parity usable |
|---|---|---|---|
| 4 bays | 96TB | 72TB | 48TB |
| 6 bays | 144TB | 120TB | 96TB |
| 8 bays | 192TB | 168TB | 144TB |
| 12 bays | 288TB | 264TB | 240TB |
MG11 24TB is useful because it gives Toshiba buyers a conventional recording option at the top of the MG11 range. That is different from MA11, where the higher 27TB and 28TB capacities come with host-managed SMR deployment requirements.
For general-purpose enterprise storage, CMR keeps compatibility simpler. The drive can still be the wrong SKU if you buy the wrong interface or sector-format suffix, but it does not require the storage stack to manage sequential-write SMR zones.
The relevant 24TB part-number families include MG11ACA24TE for SATA and MG11SCA24TE for SAS, with security and instant-erase suffixes. Those suffixes matter. A SAS drive does not work on a SATA-only backplane, and a security variant can complicate replacement procedures.
SAS can be worth paying for in enterprise shelves with dual controllers, multipath and redundancy expectations. SATA is often enough for single-host storage nodes, backup servers and homelab systems with normal SATA/SAS HBAs.
MG11 24TB is a clean fit for ZFS pools, conventional RAID shelves, backup repositories, object-storage nodes and dense file servers where 24TB per slot hits the capacity target without SMR restrictions.
It competes most directly with Exos X24 and WD Ultrastar CMR options. The winner is usually live price, availability, interface support and fleet standardization rather than a dramatic performance difference.
The Toshiba MG11 24TB is the strongest Mx11 choice for conventional enterprise storage. It offers the density of Toshiba's newest MG family without asking the host to manage SMR.
If exact MG11 stock is unavailable, compare live Exos and Ultrastar alternatives instead of buying MA11 unless the environment is specifically SMR-aware.
Verified public MG11 24TB families include MG11ACA24TE SATA variants and MG11SCA24TE SAS variants, with security and instant-erase suffixes.
Yes. Toshiba's MG11 product page identifies the MG11 family up to 24TB as CMR.
Yes for conventional ZFS deployments. MG11 is CMR, while MA11 is host-managed SMR and needs compatible software.
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.