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Small silver 2.5 inch enterprise SAS hard drive with hot-plug carrier

HP

HP 512547-B21 146GB 15000 RPM SAS 6Gb/s 2.5" SFF laptop hard drive

SKU CH-6KV2-W7F9B MPN 512547-B21

146 GB 15,000 RPM SAS 6 Gb/s 2.5" SFF drive with 2.58 ms seek time for high-transaction server workloads

  • InterfaceSAS 6Gb/s
  • Capacity146GB
  • Average Seek Time2.58ms
  • RPM15000 RPM
  • FeaturesHP SAS Enterprise and Midline hard drives deliver high perfo
  • UsageIdeal for Servers
  • 15,000 RPM spindle speed accelerates server transaction processing
  • SAS 6Gb/s interface delivers 600 MB/s peak throughput
  • 58 ms average seek time reduces latency for high-I/O workloads
  • Hot-pluggable 2.5" SFF form factor enables drive swaps without downtime
  • REACH certified and 15.87 oz lightweight design supports dense server deployments

146 GB 15 000 RPM SAS drive

This HP Enterprise 2.5-inch SFF drive delivers 146 GB of storage on a SAS 6 Gb/s interface. Its 15 000 RPM spindle speed and 2.58 ms average seek time target high-transaction server workloads. The drive is sold new and supports hot-plug installation in compatible bays. It is built for environments that demand consistent I/O throughput around the clock.

Hot-plug 2.5″ SFF form factor

The 2.5-inch SFF form factor fits standard hot-plug drive carriers, allowing replacement without powering down the chassis. A SAS backplane or controller providing a 6 Gb/s link is required. The compact 0.6-inch height leaves vertical space for additional drives in dense server enclosures. No separate power adapter is needed beyond the backplane connection.

Sustained 600 MB/s transfer rate

Under continuous load the drive maintains a maximum external transfer rate of 600 MB/s (4.7 Gbit/s). The 15 000 RPM spindle keeps latency low during extended random-access patterns typical of database and virtualization workloads. Enterprise-grade firmware and REACH-compliant materials support 24×7 operation without thermal throttling. The 15.87 oz weight reflects a robust mechanical assembly designed for constant vibration.

Points forts

  • 15,000 RPM spindle speed accelerates server transaction processing
  • SAS 6Gb/s interface delivers 600 MB/s peak throughput
  • 58 ms average seek time reduces latency for high-I/O workloads
  • Hot-pluggable 2.5" SFF form factor enables drive swaps without downtime
  • REACH certified and 15.87 oz lightweight design supports dense server deployments

Caractéristiques

BrandHP
SeriesEnterprise
Model512547-B21
InterfaceSAS 6Gb/s
Capacity146GB
Average Seek Time2.58ms
RPM15000 RPM
FeaturesHP SAS Enterprise and Midline hard drives deliver high performance solutions for hosting high transaction based applications. Available in HP hot plug carriers or non-hot plug. HP SAS Enterprise and Midline hard drives come in both 2.5-inch (SFF) and 3.5-inch (LFF) industry standard form factors and are available in a variety of capacity points to meet a wide range of requirements. The SAS interface was designed and engineered for high availability, enterprise-class data storage where performance, reliability and data integrity are crucial.
UsageIdeal for Servers
Form Factor2.5" SFF
Poids d’expédition0.91 kg
Dimensions du colis311 × 259 × 198 mm

Questions sur cet article

At what spindle speed does this 15000 RPM drive hit its sustained throughput ceiling?

The 15000 RPM spindle and 600 MB/s external transfer rate define the sustained ceiling; the 2.58 ms average seek time shows the latency floor under continuous load.

How much heat and noise does the 15.87 oz SAS 6Gb/s unit add when running 24/7 in a server bay?

At 15.87 oz in a 0.6" x 3.1" x 5.4" hot-pluggable SFF form factor the drive fits dense server bays; enterprise SAS mechanics are built for 24x7 operation.

Which server backplane and controller do I already need for this 2.5" SAS 6Gb/s drive to work?

A 2.5" SFF SAS backplane with a 6Gb/s SAS controller or RAID card is required; the drive is hot-pluggable and designed for HP server carriers.

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