Alpha Microsystems SCSI Dokumentacja Pobierz pdf (Strona 6)

Page 2 Installation Instructions: SCSI Disk Drives

3.0TOOLS REQUIRED

For most installations, the only tools you will need are:

A #2 phillips-head screwdriver.

A pair of needle-nose pliers, used for removing or installing SCSI drive ID

jumpers.

An ohm meter, used to verify the signal ground on the disk drive is not

shorted to chassis ground (not required in Series 90 Applications).

4.0HANDLING SCSI DISK DRIVES

Disk drives can be damaged easily when handled improperly:

1.Leave the SCSI drive in the anti-static bag it was shipped in until you are

ready to install it.

2.Never handle a disk drive unless you are properly grounded. This will

prevent a static charge from damaging the drive before you even have it

installed.

3.Disk drives are extremely sensitive to shock, especially when handled

outside the system environment. When setting a drive on a work bench,

exercise extreme caution; whenever possible try to set the drive on a

padded anti-static surface.

5.0CONFIGURING YOUR SCSI DISK DRIVE

There is a separate appendix for each manufacturer/model of SCSI drive sold and

supported by Alpha Micro in the back of this document. The drives are shown with their

jumpers configured as shipped from the factory. You should carefully go over the

information applicable to the SCSI drive you are installing. The illustrations also

highlight the differences in jumper configurations between AMOS and Series 90

applications. Most of the configuration information shown in the table above each disk

drive is applicable only when the drive is used with the AMOS operating system. The

"number of logicals", "bitmap size", and "format interleave" specifications are not

applicable to Series 90 computers.

SCSI disk drives used in AMOS 680X0 based computers must be installed with the

drive’s signal ground isolated from the computer’s chassis ground. Before installing

your new disk drive, see Section 10 (in this document) dealing with drive isolation in

AMOS based products.

PDI-00436-20, Rev. A15

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Alpha Microsystems SCSI Dokumentacja Strona 6