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Silver 3.5 inch bare drive with SAS connector and enterprise label

Seagate

Seagate Cheetah 15K.7 ST3450857SS 450GB 15000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive

SKU CH-5N2P-EZ50M MPN ST3450857SS

A 450 GB enterprise hard drive spinning at 15000 RPM with a SAS interface for server workloads

  • PackagingBare Drive
  • InterfaceSAS 6Gb/s
  • Capacity450GB
  • NAND Flash Memory TypeEnterprise
  • RPM15000 RPM
  • Cache16MB

Options 450GB

  • 15000 RPM spindle cuts average latency to 2ms for rapid data access
  • SAS 6Gb/s interface delivers sustained transfers up to 204MB/s for heavy workloads
  • 16MB cache buffers bursts to smooth random I/O in server arrays
  • Third-generation perpendicular recording packs 450GB into a 3.5-inch form factor
  • Self-encrypting design with FIPS 140-2 certification secures data at rest

Enterprise SAS 6Gb/s Drive

The Seagate Cheetah 15K.7 ST3450857SS is a 450GB 3.5-inch internal hard drive built for server workloads. Its 15000 RPM spindle speed and 16MB cache serve transaction processing, email and decision-support applications. The SAS 6Gb/s interface connects directly to compatible enterprise backplanes and controllers. This bare drive is supplied new without retail packaging.

SAS 6Gb/s Interface Limits

The SAS 6Gb/s link caps sustained throughput at the bus level, so the drive’s 204MB/s maximum transfer rate cannot be exceeded. Average latency sits at 2ms with seek times of 3.4ms read and 3.9ms write. Ultra320 SCSI models exist in the same family but use a different connector and protocol. Systems without SAS ports cannot use this drive.

450GB Capacity and Headroom

At 450GB the drive holds operating systems, databases and log files for small-to-medium arrays. Third-generation perpendicular recording and Powertrim technology keep power draw in check during sustained I/O. Self-encrypting drive options with FIPS 140-2 certification address compliance needs. Larger datasets or long-term archival will require additional spindles or higher-capacity media.

Points forts

  • 15000 RPM spindle cuts average latency to 2ms for rapid data access
  • SAS 6Gb/s interface delivers sustained transfers up to 204MB/s for heavy workloads
  • 16MB cache buffers bursts to smooth random I/O in server arrays
  • Third-generation perpendicular recording packs 450GB into a 3.5-inch form factor
  • Self-encrypting design with FIPS 140-2 certification secures data at rest

Caractéristiques

BrandSeagate
SeriesCheetah 15K.7
ModelST3450857SS
PackagingBare Drive
InterfaceSAS 6Gb/s
Capacity450GB
NAND Flash Memory TypeEnterprise
RPM15000 RPM
Cache16MB
Average Seek Time3.4ms
Average Write Time3.9ms
Average Latency2ms
FeaturesThird-generation perpendicular recording
Sustained data rate of up to 204MB/s
Industry’s highest 3.5-inch drive reliability
Powertrim technology optimizes power consumption
Self-encrypting drive (sed)2 and FiPs 140-2 certifi ed sed3 cut it drive retirement costs and protect data. FiPS options meet government encryption compliance standards
Ultra320 SCSI interface models available
Business and transaction processing
Email and decision support
Storage area networks (san)
Network attached storage (nas)
Internet and e-commerce
Security compliance-driven it organizations
UsageIdeal for Servers
Form Factor3.5"
Poids d’expédition1.36 kg
Dimensions du colis165 × 121 × 36 mm

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Questions sur cet article

Should I choose the 450 GB 15 000 RPM model or a lower-capacity version for my server?

The 450 GB capacity combined with 15 000 RPM and 16 MB cache delivers the highest transaction throughput in the Cheetah 15K.7 line, making it the preferred choice for database and email workloads.

What does the 204 MB/s sustained rate mean once the drive is installed in a server?

In a SAS 6 Gb/s backplane the drive can stream sequential reads and writes at up to 204 MB/s, so large backup jobs or SAN replication tasks saturate the pipe before the drive becomes the bottleneck.

How does the SAS 6 Gb/s interface cap real-world performance?

The 6 Gb/s link supports the drive's 204 MB/s sustained throughput with headroom for command overhead, while the dual-port SAS architecture provides path redundancy for high-availability clusters.

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