Table 5–1 TLZ07 LED Status
Status
Write-Protect LED
Tape/activity LED
No tape loaded
Off
Off
Tape loaded, write-enabled
Off
Green
Tape loaded, write-protected
Amber
Green
No SCSI/drive activity
Write-protect status
Green
SCSI/drive activity
Write-protect status
Activity
Load sequence
Off, goes to write-protect
status quickly with original
version, but delays several
seconds with revised version
due to tape preload.
Flashes green, 1 Hz,
25% on. Goes to
steady green when
done. Indicates drive
activity.
Unload sequence
Write-protect status, goes to
off.
Flashes green, 1 Hz,
25% on. Goes to off
when done.
Reset sequence
Amber or write-protect status
Green, both blink on.
Green, blink on once.
POST enabled:
Lvl 1 (Basic) self-test
Flashes amber, 2 Hz, for
duration of test. Write-
protect status when self-test
completes.
Flashes green, 2
Hz for duration of
test. Normal activity
indications when
self-test complete.
Lvl 2 (Extended) self-test
Write-protect status
Flashes green until
test complete (1 to
4 minutes). Same
as normal activity
indication.
Test complete,
no failure.
Resume normal operation,
write-protect status.
Test failure, drive fault.
Flashes amber, 2 Hz.
Flashes green, 2 Hz.
Power-On with
Self-test disabled:
Flash amber, 2Hz for two
seconds
Flash green, 2 Hz, for
two seconds
Tape fault (media warning,
high error rate)
Change state of LED for 0.5
seconds every two seconds
Activity
Drive fault
Flash amber, 2 Hz
Flash green, 2 Hz, for
both
Cleaning tape inserted (good
tape)
Write-protect status, goes to
off
Flash green during
cleaning cycle
Cleaning tape inserted
(expired tape)
Flash amber, 2Hz
Flash green, 2 Hz
(drive fault)
Using the TLZ07 Cassette Tape Drive 5–3