Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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$23.99
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Seagate
Seagate ST1000NM0021 1TB 7200 RPM 64MB SAS 6Gb/s 3.5" internal hard drive
A 1 TB 3.5-inch enterprise drive with 7200 RPM, 64 MB cache, SAS 6Gb/s interface and 256-bit self-encryption for 24×7 operation
- PackagingBare Drive
- InterfaceSAS 6Gb/s
- Capacity1TB
- RPM7200 RPM
- Cache64MB
- Average Latency4.16ms
- Enterprise-grade reliability for 24×7 workloads with 1.2 million hour MTBF
- 6Gb/s SAS interface delivers consistent throughput with IOEDC and IOECC error correction
- Self-Encrypting Drive option provides hardware-based 256-bit AES security
- Low power consumption and PowerChoice technology reduce energy and cooling costs
- 7200 RPM and 64MB cache ensure responsive performance for nearline storage
Enterprise nearline storage
The Seagate Constellation ES ST1000NM0021 is a 1TB 3.5-inch internal hard drive built for 24×7 operation in multi-drive servers and storage arrays. It spins at 7200 RPM with a 64MB cache and connects through a SAS 6Gb/s interface for enterprise workloads.
SAS installation and encryption
The bare drive fits standard 3.5-inch bays and connects with SAS data and power cables; no special mounting hardware is required. The Self-Encrypting Drive option uses 256-bit encryption, so the encryption key must be managed by the controller or host software to avoid data loss.
Suited for capacity-optimised servers
This drive suits administrators who need high-capacity, enterprise-class reliability with enhanced rotational vibration tolerance and an MTBF of 1.2 million hours. Buyers who want more storage per bay or require a SATA interface should consider other models.
Highlights
- Enterprise-grade reliability for 24×7 workloads with 1.2 million hour MTBF
- 6Gb/s SAS interface delivers consistent throughput with IOEDC and IOECC error correction
- Self-Encrypting Drive option provides hardware-based 256-bit AES security
- Low power consumption and PowerChoice technology reduce energy and cooling costs
- 7200 RPM and 64MB cache ensure responsive performance for nearline storage
Specifications
| Brand | Seagate |
|---|---|
| Series | Constellation ES |
| Model | ST1000NM0021 |
| Packaging | Bare Drive |
| Interface | SAS 6Gb/s |
| Capacity | 1TB |
| RPM | 7200 RPM |
| Cache | 64MB |
| Average Latency | 4.16ms |
| Features | Reduces design and support costs by building on the Seagate best-in-class enterprise storage foundation Features a range of high capacities in a 3.5-inch enterprise-class hard disk drive Offers a traditional 3.5-inch form factor with enhanced rotational vibration tolerance and high data integrity for enterprise-class reliability in a cost-effective drive Delivers proven reliability, with an MTBF of 1.2 million hours and enhanced end-to-end data integrity with Protection Information feature Lets you choose a Enterprise 6Gb/s interface easing integration and delivering up to 2x the thr |
| Form Factor | 3.5" |
| Shipping weight | 1.00 kg |
| Package size | 178 × 137 × 38 mm |
Questions about this item
How can I verify the ST1000NM0021 is running correctly after installation?
Check SMART attributes for reallocated sectors and confirm the drive reports 7200 RPM, 64 MB cache and a SAS 6Gb/s link speed in your RAID controller or HBA utility.
What comes with the bare drive and what must I source separately?
The box contains only the 3.5-inch drive; you need a SAS 6Gb/s cable, compatible backplane or HBA, mounting screws and a power connector.
Which capacity of the Constellation ES line should I pick for a 24×7 server array?
This model provides 1 TB; choose higher-capacity Constellation ES drives if you need more space per bay.
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