Exabyte EXB-8505 8mm manual LKey for m3, LED states during operation

4 Requirements for Use

Different LED combinations indicate the tape drive’s operating state, as follows:

When the top (amber) LED is on or flashing, the tape drive either has an error or needs to be cleaned.

When the middle LED is on or flashing, SCSI bus activity is occurring. The middle LED can be green or amber, as follows:

∙When this LED is amber, the tape loaded in the tape drive is in compressed format (8500c or 8200c).

∙When this LED is green, the tape loaded in the tape drive is in uncompressed format (8500 or 8200).

When the bottom (green) LED is on or flashing, tape motion is occurring.

Table 4-3shows the various combinations of LEDs that may occur to

indicate different operating states during tape drive operation.

m

Top

l

m

m

m

m

l

Table 4-3LED states during operation

Middle

j

j

j

j

Tape Drive State

j

j

POST

POST

Failed

Ready–

Ready–

Normal

High-

SCSI

Error

Time to

Cleaning

(1st

(to com-

POST

no tape

tape

tape

speed

bus

clean

tape

part)

pletion)

loaded

loaded

motion

tape

reset

loaded

motion

LED

fast

slow

fast

(errors)

LED

(green)

irregular

irregular

irregular

irregular

irregular

irregular

irregular

irregular

irregular

irregular

(SCSI)a

j

l

m

j

j

Bottom

l

mb

m

m

l

j

LED

slow

fast

fast

slow

(motion)

aGreen–EXB-8500 or EXB-8200 uncompressed format tape. Amber–EXB-8500c or EXB-8200c compressed format tape.

bIf a tape is loaded, the bottom LED will flash slow and then fast during the second part of the power-on self-test.

lKey for Table 4-m3		j
The LED is on.	The LED is off.	The LED is flashing:

slow = 1 flash/second (0.94 Hz) jfast = 4 flashes/second (3.76 Hz)

irregular = Rate of flash varies with SCSI bus activity. If the tape drive is not connected to the bus, the LED will be off.

May 1994	EXB-8205 and EXB-8505	4-13
	(Standard and XL)