HP Serial Attached SCSI (SAS) Hard Drives for HP QuickSpecs Overview

Models 146 GB 15K rpm SAS 3.0 Gb/s Hard Drive EA330AA 73 GB 15K rpm SAS 3.0 Gb/s Hard Drive EA329AA 146 GB 10K rpm SAS 3.0 Gb/s Hard Drive EM173AA

Introduction HP Serial Attached SCSI or SAS as it is referred to, is the logical evolution of the SCSI , 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. Goodbye SCSI bottleneck 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. NOTE: Not all models available in all regions or all models.

Service and Support Serial Attached SCSI Hard Drives have a one-year Limited Warranty or the remainder of the warranty of the HP product in which it is installed. Technical support is available seven days a week, 24 hours a day by phone, as well as in online support forums. Certain restrictions and exclusions apply.

DA - 12496 Worldwide — Version 3 — September 11, 2006 Page 1 HP Serial Attached SCSI (SAS) Hard Drives for HP QuickSpecs Workstations Technical Specifications

146 GB (15K rpm) Capacity 146,815,737,856 bytes Height 1.0 inches; 25.4mm Width 4.0 inches; 101.6mm Interface SAS Synchronous Transfer 3.0 Gb/s Rate (Maximum) Buffer 8 Mbytes Seek Time (typical reads, Single Track 0.27 ms including settling) Average 3.5 ms Full-Stroke 7.4 ms Rotational Speed 15,000 rpm Logical Blocks 286,749,488 – 512 byte blocks Operating Temperature 50° to 95° F (10° to 35° C)

73 GB (15K rpm) Capacity 73,407,856,856 bytes Height 1.0 inches; 25.4mm Width 4.0 inches; 101.6mm Interface SAS Synchronous Transfer 3.0 Gb/s Rate (Maximum) Buffer 8 Mbytes Seek Time (typical reads, Single Track 0.27 ms including settling) Average 3.5 ms Full-Stroke 7.4 ms Rotational Speed 15,000 rpm Logical Blocks 143,374,738 – 512 byte blocks Operating Temperature 50° to 95° F (10° to 35° C)

146 GB (10K rpm) Capacity 146,815,737,856 bytes Height 1.0 inches; 25.4mm Width 4.0 inches; 101.6mm Interface SAS Synchronous Transfer 3.0 Gb/s Rate (Maximum) Buffer 8 Mbytes Seek Time (typical reads, Single Track .3 ms including settling) Average <4.5 ms Full-Stroke <11.0 ms Rotational Speed 10,000 rpm Logical Blocks 286,749,488 – 512 byte blocks Operating Temperature 50° to 95° F (10° to 35° C)

DA - 12496 Worldwide — Version 3 — September 11, 2006 Page 2 HP Serial Attached SCSI (SAS) Hard Drives for HP QuickSpecs Workstations Technical Specifications © Copyright 2006 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

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