Internal Hard Drive IBM 300GB 3.5" SAS 15000RPM 49Y1856-RFB

The IBM 49Y1856-RFB is an internal hard drive with 300 GB capacity, a 3.5" form factor and a Serial Attached SCSI (SAS) interface. Spinning at 15,000 RPM, this enterprise-class HDD is built for workloads that require high I/O throughput and consistent performance. The drive is intended for integration into rack or tower servers and storage arrays where predictable latency and sustained transfer rates are important.

Advantages

The 300 GB, 3.5" IBM 49Y1856-RFB delivers high rotational speed (15,000 RPM) to reduce access times and improve random I/O performance compared with lower-speed drives. The SAS interface provides robust connectivity and supports enterprise features such as dual-port availability and improved error recovery compared with consumer interfaces. The drive’s form factor and capacity are suitable for mixed storage configurations where a balance between capacity and performance is required.

Suitable for

• Database servers requiring low-latency random reads and writes
• Transaction processing and virtualization hosts
• Mail, directory and authentication servers
• Tiered storage configurations alongside larger capacity drives

Key specifications

• Brand: IBM
• Model / MPN: 49Y1856-RFB
• EAN: 5712505797860
• Capacity: 300 GB
• Form factor: 3.5"
• Interface: SAS (Serial Attached SCSI)
• Rotational speed: 15,000 RPM

How to use

Install the IBM 49Y1856-RFB into a compatible server or storage enclosure that supports 3.5" SAS drives. Follow the server or chassis manufacturer’s instructions for hot-swap or fixed-mount installation, ensuring correct orientation, proper seating of the SAS connector and secure drive mounting. After physical installation, configure RAID or storage volumes according to your operating system or RAID controller guidelines, and verify the drive is recognized in firmware or the host OS before use.

Usage recommendations

Deploy this SAS 15,000 RPM drive in systems where consistent low-latency access and high random I/O are required. Use in RAID arrays with appropriate redundancy for enterprise data protection, and ensure firmware and controller drivers are up to date. Monitor drive health through SMART or vendor management tools and plan replacement based on operating hours and error reports.