System Hardware Overview

 

 

 

SCSI Disk Subsystem

In a standard configuration, one 9-GB 7,200-RPM Ultra-Wide SCSI disk

 

drive and four identical 9-GB 10,000-RPM Ultra-Wide SCSI disk drives are

 

installed in the external and internal drive bays of the Intergraph StudioZ. No

 

bays are available to install additional drives. The 9-GB 7,200-RPM system

 

disk drive is formatted with three partitions for storage of operating system

 

files, project files, and audio files. Four 9-GB 10,000-RPM disk drives are

 

formatted as a striped set for video file storage.

 

 

 

Disk striping is a hardware capability that speeds up data I/O from disk

 

storage. The computer divides the data into pieces and spreads the pieces

 

across the disks in the striped set. Because the computer transfers data to

 

multiple drives in chunks smaller than it would transfer to a single drive, data

 

transfer is accelerated.

 

 

 

 

 

Each of the Adaptec 2940 SCSI Controller cards handle data I/O for two video

 

storage drives. The Adaptec 7880 SCSI Controller, located inside the

 

Intergraph StudioZ, handles data I/O for the system disk drive. The Adaptec

 

controllers provide a maximum theoretical sustained data transfer rate of 40

 

MB per second. With disk striping, this rate is increased to about 50 MB per

 

second.

 

 

 

 

 

 

The following table summarizes disk drive information. Note that the CD-

 

ROM is assigned drive letter G.

 

 

 

 

 

 

 

 

 

 

 

Drive

Label

Size

Function

Format

 

 

 

 

 

 

 

 

C:\

System

2 GB partition

Stores operating

File Allocation

 

 

 

 

system software

Table (FAT)

 

 

 

 

 

 

 

 

E:\

Audio Storage

4 GB partition of C:\

Stores audio files

NT File System

 

 

 

 

 

(NTFS)

 

 

 

 

 

 

 

 

F:\

Projects

3 GB partition of C:\

Stores project-

NTFS

 

 

 

 

related files

 

 

 

 

 

 

 

 

 

 

D:\

Video Storage

4 each 9 GB

Stores video files

NTFS

 

 

 

(striped)

 

 

 

 

 

 

 

 

 

 

System Specifications For details on the Intergraph StudioZ hardware configuration, see Intergraph’s online System Reference document provided on disk in the WIN32APP\SYSREF directory.

System Guide

19

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Microsoft DHA025600 manual Scsi Disk Subsystem, Transfer is accelerated, Drive Label Size Function Format

DHA025600 specifications

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