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HP 300GB 15000rpm SAS 3.0 Gb/s Hard Drive (Open Box Product, Limited Availability, No Back Orders) (EM174AA-OB)


SAS Hard Drives offer data transfer rates of up to 3.0 Gb/s for short bursts. Sustained data transfer rates vary with drive speed, capacity and model but are typically 50 to 90 MB/s in sequential.   Learn more about the product
HP 300GB 15000rpm SAS 3.0 Gb/s Hard Drive (Open Box Product, Limited Availability, No Back Orders)
Price:$247.37
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OnSale Part#: 8217697
Mfr Part#: EM174AA-OB
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HP Serial Attached SCSI (SAS) drives are the high-speed replacement technology for SCSI, combining high-bandwidth fast data transfer rates with better error detection and recovery, thanks to its dedicated bus interface and the latest I/O protocols.

HP Serial Attached SCSI (SAS) is the logical evolution of the SCSI interface, combining SCSI's long-established software advantage with the Serial ATA electrical and physical connection interface. With storage requirements escalating and becoming more complex, factors such as larger capacity, greater density, security, scalability and accessibility are more critical than ever, and the SAS interface and hard disk drives will continue to meet these Enterprise class demands.

As the technology evolves, device support will be further enhanced, making it an even more attractive alternative for high end users who want a solution far superior and more flexible than any other storage technology. The results of aligning the SAS and SATA technologies provide even greater choices to the storage industry.

SAS based hard drives are ideal for projects requiring storage capacity growth, transactional applications and performance oriented requirements where throughput and reliability are an absolute must.

Performance
HP Serial Attached SCSI Hard Drives offer data transfer rates of up to 3.0 Gb/s for short bursts. Sustained data transfer rates vary with drive speed, capacity and model but are typically 50 to 90 MB/s in sequential read operations.

Benefits
Key end user benefits of SAS include

– Serial Attached SCSI (SAS) has attributes and features that will extend it beyond the limited capabilities of parallel SCSI.
– SAS provides a four-wire replacement for the physical cable layer of parallel SCSI
– SAS is a software compatible "drop in" replacement for parallel SCSI. Utilizing the existing SCSI command set for compatibility with existing operating systems & storage middleware
– "Star" topology (point-to-point, no hubs). Each device gets full 3.0 Gb/s bandwidth.
– Minimum device arbitration overhead
– True full duplex communications. Transfers both read and write data simultaneously on 1 port
– Features SMART and Drive Self Test hard drive technologies

Compatibility
The HP Serial Attached SCSI Hard Drives are all compatible with the HP xw4400, xw6400, xw8400 and xw9400 workstations.
Hard Drive
Hard Drive capacity 300 GB
Spindle Speed (RPM) 15000
Hard Drive interface type SAS
Form factor internal
Color Black
Additional Details
Additional details <B>Capacity:</B> 300,000,000,000 bytes<br><B>Synchronous Transfer Rate (Maximum):</B> 3.0 Gb/s<br><B>Buffer:</B> 16 MB<br><br><B>Seek Time (typical reads, including settling)</B><br><B>Single Track:</B> 0.2 ms<br><B>Average:</B> 3.5 ms<br><B>Full-Stroke:</B> 6.7 ms
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