HP
HP 512547-B21 146GB 15000 RPM SAS 6Gb/s 2.5" SFF laptop hard drive
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.
Highlights
- 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
Specifications
| Brand | HP |
|---|---|
| Series | Enterprise |
| Model | 512547-B21 |
| Interface | SAS 6Gb/s |
| Capacity | 146GB |
| Average Seek Time | 2.58ms |
| RPM | 15000 RPM |
| Features | HP 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. |
| Usage | Ideal for Servers |
| Form Factor | 2.5" SFF |
| Shipping weight | 0.91 kg |
| Package size | 311 × 259 × 198 mm |
Questions about this item
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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