28
LTO-5 Half-Height SAS Tape Drives
Understanding LED sequences
The LED sequences in the following table relate to the Clean, Tape Error, Drive
Error and Ready LEDs. The LTO–5 tape drive also has an Encryption LED that
describes encryption status. This is described separately in
"Encryption LED"
on page 31
. The meaning of different patterns of LEDs, without encryption
enabled, is as follows:
LED Sequence
Cause
Action required
All LEDs OFF.
Drive may not have
power, may be
faulty or may have
been power cycled
or reset during a
firmware upgrade.
Check the power cord connection
and replace the cable if necessary.
If the power supply is present and
all LEDs remain off, power cycle
the server. If it still fails, call for
service.
Ready and Clean
OFF. Drive and Tape
FLASH.
The drive has failed
to execute power-
on self test (POST).
Power cycle the server.
If the error condition reappears,
call for service.
Ready is ON.
The drive is ready
for operation.
None. This is normal.
Ready FLASHES.
The drive is
carrying out a
normal activity
(read, write).
None.
If the drive is upgrading firmware,
do not power cycle the server.
Ready FLASHES-
steady
ONFLASHES.
The drive is in
OBDR mode. This
mode is not
supported by
Fujitsu.
To leave OBDR mode, power cycle
the server.
Ready FLASHES
fast.
The drive is
downloading
firmware.
None.
Do not power cycle the server.
Table 3: Clean, Tape, Drive and Ready LED sequences