Application Guide

ManualsBrandsHP ManualsComputers & Accessories507283-001 HP 146GB 6G SAS 10K SFF HDD

HP hard disk drive substitutions quality assured,

compatible with customer systems

Scope of this paper.............................................................................................................................. 2

Introduction......................................................................................................................................... 2

Substitute HDD Qualification Procedure.................................................................................................. 2

Spin Speed ..................................................................................................................................... 3

Interface.......................................................................................................................................... 3

Capacity......................................................................................................................................... 4

Summary ............................................................................................................................................ 4

For more information............................................................................................................................ 4

Summary of content (4 pages)

PAGE 1
HP hard disk drive substitutions quality assured, compatible with customer systems Scope of this paper.............................................................................................................................. 2 Introduction......................................................................................................................................... 2 Substitute HDD Qualification Procedure..........................................................................................
PAGE 2
Scope of this paper This document outlines the quality assurance that HP gives to customers regarding hard disk drive (HDD) substitutions. This brief examines three parameters of SCSI hard disk drive technology that have undergone change, explains what the changes mean, and lists how HP ensures compatibility. Like the rest of the technology industry, SCSI hard disk drives continue to evolve to meet the everincreasing needs of the enterprise.
PAGE 3
Spin Speed The rotational speed of the disk, commonly referred to as ‘rpm’, has changed in recent years from 7200 to 10,000, and now to15,000 rpms. Increased spin speed results in reduced mechanical latency, which makes for a higher performing drive. A faster spin speed can also result in a drive that consumes more power and dissipates more heat. However, by reducing the rotating mass of the drive, these effects can be negated.
PAGE 4
Capacity Capacity is the disk drive parameter that has experienced the most growth. Steady increases in areal density have pushed the size of SCSI drives from 4.3GB to 146GB in less than ten years. The amount of data that can be put onto a single platter dictates the minimum capacity point for a given generation of product. Typically, substituting a higher capacity drive for a smaller capacity has no effect on the performance of an application.