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Silver 2.5 inch bare hard drive with SAS connector

Seagate

Seagate Savvio 15K.3 ST9300653SS 300GB 15000 RPM 64MB SAS 2.5" laptop hard drive

SKU CH-E2BT-VRA4W MPN ST9300653SS

A 300 GB 2.5 inch SAS hard drive spinning at 15000 RPM with 64 MB cache for server workloads

  • PackagingBare Drive
  • InterfaceSAS 6Gb/s
  • Capacity300GB
  • Cache64MB
  • Average Latency2ms
  • RPM15000 RPM
  • 15000 RPM spindle speed cuts average latency to 2 ms
  • 64 MB cache boosts random read and write throughput
  • SAS 6 Gb/s interface supports high-bandwidth server workloads
  • 300 GB capacity in 2.5 inch form factor doubles Tier 1 storage density
  • 15 mm height fits standard enterprise drive bays

Enterprise 300GB SAS drive

The Seagate Savvio 15K.3 ST9300653SS is a new 300GB 2.5-inch internal hard drive with a SAS 6Gb/s interface. It spins at 15000 RPM and includes a 64MB cache for enterprise workloads. The bare-drive form factor measures 15mm in height, 70.1mm in width and 100.45mm in length.

Suited for server tiers, not laptops

This drive is built for server environments that demand high spindle speed and SAS connectivity. It suits administrators who need 300GB of Tier 1 storage in a 2.5-inch bay with 15mm clearance. Buyers whose chassis only accepts 2.5-inch drives thinner than 15mm or whose backplanes lack SAS support should look elsewhere.

15000 RPM spindle speed

The 15000 RPM rotation rate is the single specification that determines whether this drive meets the performance envelope of the target array. It delivers the low 2ms average latency and the sequential throughput gains quoted for the Savvio 15K.3 series. If the application requires a slower spindle or a different interface, this model will not fit the requirement.

Highlights

  • 15000 RPM spindle speed cuts average latency to 2 ms
  • 64 MB cache boosts random read and write throughput
  • SAS 6 Gb/s interface supports high-bandwidth server workloads
  • 300 GB capacity in 2.5 inch form factor doubles Tier 1 storage density
  • 15 mm height fits standard enterprise drive bays

Specifications

BrandSeagate
SeriesSavvio 15K.3
ModelST9300653SS
PackagingBare Drive
InterfaceSAS 6Gb/s
Capacity300GB
Cache64MB
Average Latency2ms
RPM15000 RPM
FeaturesDoubles Tier 1 data storage capacity (up to 300 GB)
Provides up to 21% improvement in sequential data read/write performance over prior generation
Delivers up to 3% faster random read and up to 4% faster random write performance vs. prior generation, and up to 10% faster random read and up to 8% faster random write performance vs. legacy 3.5-inch 15K drives
Improves scalability and reliability with 6Gb/s SAS interface support
Supports Protection Information (PI) to help ensure data is not changed from what the user created—from the moment the data is created throughout the life of th
UsageIdeal for Servers
Form Factor2.5"
Height (maximum)15mm
Width (maximum)70.1mm
Length (maximum)100.45mm
Shipping weight0.20 kg
Package size220 × 136 × 23 mm

Questions about this item

Does the 64 MB cache on the ST9300653SS require any periodic maintenance or replacement?

The 64 MB cache is a solid-state buffer integrated into the drive controller and has no serviceable parts or replacement schedule.

What limit appears first when the 15000 RPM drive runs under sustained heavy workloads?

The 15 mm height and 15000 RPM spindle speed mean thermal output reaches the enclosure limit before the SAS 6Gb/s interface saturates.

How much noise and heat does the 2.5 inch 15000 RPM unit produce when running all day in a server?

At 15000 RPM the drive generates noticeable whine and measurable heat; adequate airflow across the 100.45 mm length is required for continuous operation.

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