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Silver 3.5 inch SAS hard drive bare unit with circuit board visible

Seagate

Seagate Cheetah 15K.7 ST3450857SS 450GB 15000RPM 6Gbps 16MB 3.5" SAS internal hard drive

SKU CH-8950-CXB89

A 3.5 inch SAS hard drive spinning at 15000 RPM with 450GB capacity and 16MB cache for high-performance desktop storage

  • 450GB capacity stores up to 500,000 photos
  • 15,000RPM spindle delivers 204MB/s sustained transfer
  • 6Gbps SAS 2.0 interface moves data at 6GB/s
  • 16MB cache accelerates random I/O performance
  • 5-inch form factor fits standard desktop bays

High-performance SAS hard drive

The Seagate Cheetah 15K.7 ST3450857SS is a 3.5-inch internal hard drive built for enterprise workloads. It spins at 15000 RPM and connects through a 6 Gbps SAS 2.0 interface with a 16 MB cache. The drive delivers a sustained transfer rate up to 204 MB per second and offers 450 GB of capacity. It is supplied as a bare drive only.

Suited for transactional servers not for capacity

This drive fits database servers, transactional systems and high-I/O applications that benefit from low latency and high spindle speed. Builders who need more storage space per drive or who lack a SAS host adapter should look at alternative architectures. It is not intended for quiet desktop use or external enclosures without proper signal support.

15000 RPM spindle speed decides fit

The 15000 RPM rotation rate is the single specification that determines whether this drive matches the workload. It provides the random-access performance required for heavy OLTP and similar I/O-bound tasks. Systems requiring lower power draw or higher areal density should evaluate different drive classes.

Highlights

  • 450GB capacity stores up to 500,000 photos
  • 15,000RPM spindle delivers 204MB/s sustained transfer
  • 6Gbps SAS 2.0 interface moves data at 6GB/s
  • 16MB cache accelerates random I/O performance
  • 5-inch form factor fits standard desktop bays

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 3.5-inch SAS drive and what step is often missed?

Mount the bare drive in a 3.5-inch bay, connect the SAS data and power cables to a SAS 2.0 controller, and enable the drive in the controller BIOS; the step often missed is configuring the SAS initiator or RAID array before the OS sees the volume.

What maintenance or replacement will the ST3450857SS need later?

As a 15000 RPM mechanical drive with 16 MB cache, it has no user-serviceable parts; plan to replace the unit when SMART attributes report reallocated sectors or when sustained throughput drops below the 204 MB/s rating.

What limit appears first during sustained use of the 450 GB Cheetah 15K.7?

The 204 MB/s sustained transfer ceiling is reached before the 6 Gbps SAS 2.0 interface saturates, so continuous sequential workloads hit the media throughput limit first.

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