- ページ 15

ストレージ Digital Equipment SA106のPDF 使用および設置マニュアルをオンラインで閲覧またはダウンロードできます。Digital Equipment SA106 17 ページ。 Storage subsystem

4–2 Operation

Table 4–1 lists the function and state of each control/indicator:

Table 4–1 SA106 and TA867 Controls and Indicators

Control

/Indicator

Port Select A

Port Select B

Fault

Ready

Unit number

TZ867

Figure 4–1 shows the SA106 conﬁguration.

Function/State

In the enable (in) position, PORT SELECT A allows the HSC to

access port A. Under microprogram control, the HSC can then

cause port A to go on line.

Placing Port Select A in the disable (out) position with port A on

line causes serious errors at the HSC.

Port Select A lights when port A is on line (ready to receive any

command or data).

The deﬁnition of Port Select B for port B is the same as the

deﬁnition of Port Select A for port A.

The fault indicator lights when a potentially fatal error has been

detected in the formatter. Even though an error has occurred, the

formatter still attempts to communicate with the HSC.

With a fatal error present, press the Fault switch to clear the

error.

The ready indicator lights after the SCSI/STI adapter successfully

completed its power-on self-tests (POST).

DSA unit number

See the Tx867 Series Magazine Tape Subsystem Owner's Manual