Seagate
Seagate ST2000NM0135 2TB 7200 RPM 512e SAS 12Gb/s 128MB 3.5" internal hard drive
- Bare Drive
- 512e SAS
137,99 US$
0.00172319BTC
På lager
Seagate
Seagate ST4000NM0125 4TB 7200 RPM 512e SAS 128MB 3.5" internal hard drive
A 4 TB enterprise hard drive with 7200 RPM, 128 MB cache and 12 Gb/s SAS for 24×7 bulk-data workloads
- PackagingBare Drive
- Interface512e SAS
- Capacity4TB
- NAND Flash Memory TypeHard Drive
- RPM7200 RPM
- Cache128MB
- 4TB capacity stores bulk enterprise data
- 7200 RPM spindle delivers consistent nearline performance
- 128 MB cache accelerates random I/O workloads
- 12 Gb/s SAS interface enables dual-port redundancy
- 550 TB/year workload rating supports 24×7 operation
Capacity and Interface
This 4 TB enterprise hard drive uses a 12 Gb/s SAS interface with 512e formatting and conventional magnetic recording technology. It is built for 24×7 bulk-data workloads such as replicated storage servers, RAID arrays and high-capacity nearline archives.
Host Compatibility
Verify that your server or storage enclosure provides a SAS 12 Gb/s backplane or controller with 512e sector support. The drive requires a standard 3.5-inch drive bay and draws power from the system backplane rather than a separate connector.
Thermals and Power
The drive is engineered for continuous operation in dense multi-drive chassis with a rated workload of 550 TB per year. Dual processors, ramp-load technology and a humidity sensor maintain stable performance and reliability under sustained enterprise loads.
Fordele
- 4TB capacity stores bulk enterprise data
- 7200 RPM spindle delivers consistent nearline performance
- 128 MB cache accelerates random I/O workloads
- 12 Gb/s SAS interface enables dual-port redundancy
- 550 TB/year workload rating supports 24×7 operation
Specifikationer
| Brand | Seagate |
|---|---|
| Model | ST4000NM0125 |
| Packaging | Bare Drive |
| Interface | 512e SAS |
| Capacity | 4TB |
| NAND Flash Memory Type | Hard Drive |
| RPM | 7200 RPM |
| Cache | 128MB |
| Average Latency | 4.16ms |
| Features | Capacity-Optimized Enterprise Hard Drive for Bulk-Data Applications - 1TB to 8TB*1, 3.5-inch enterprise drive with industry-leading conventional magnetic recording (CMR) technology - Advanced Write Caching feature enables up to 100% performance improvement in random writes over last-generation drive - 12Gb/s SAS and SATA 6Gb/s interfaces in industry-standard formats (512n, 512e and 4Kn) for easy integration into replicated and RAID multi-drive storage servers and systems - State-of-the-art cache, on-the-fly error-correction algorithms, super parity and end-to-end SAS-based data integ |
| Usage | For Enterprise Storage |
| Form Factor | 3.5" |
| Height (maximum) | 26.10mm |
| Width (maximum) | 101.85mm |
| Length (maximum) | 147.00mm |
| Forsendelsesvægt | 0.69 kg |
| Pakkestørrelse | 168 × 146 × 3 mm |
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Seagate
Seagate ST6000NM0095 6TB 7200 RPM 256MB SAS 12Gb/s 3.5" internal hard drive
- Bare Drive
- SAS 12Gb/s
212,99 US$
0.00265978BTC
På lagerSpørgsmål om denne vare
What comes in the box with the ST4000NM0125, and do I need to buy cables or a mounting bracket separately?
The drive is supplied as a bare 3.5" unit only. A SAS data cable, a compatible power connector and any mounting hardware for your chassis must be sourced separately.
Should I choose the 512e SAS version or look for a 512n or 4Kn model for my RAID array?
The 512e format emulates 512-byte sectors on 4K physical sectors, giving broad compatibility with most RAID controllers and operating systems while keeping the 4TB capacity.
How does the 12Gb/s SAS interface and 7200 RPM speed translate to real-world throughput in a 24×7 server?
The 12Gb/s SAS link and 128MB cache support sustained sequential transfers that match the 7200 RPM mechanical limit, while the 550TB/yr workload rating and 4.16ms latency are engineered for continuous multi-drive operation.
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