IBM H4S, Setup, Operator, And Service Manual

Page: 42 / 141

Table 3-1. Meaning of Status Lights and Single-character Display (SCD) (continued)
If the green
Ready
Status Light
is...
and the
amber Fault
Status Light
is...
and the SCD
is...
and the SCD Dot
is...
Meaning
Off Flashing
Amber (twice
per second)
Off On There is a drive dump in flash memory.
1
Power should not be removed from the drive until the microcode update is complete. The drive indicates that the
update is complete by resetting and performing POST.
Unload Button
The Unload Button (
1
in “Front panel of the drive” on page 1-2) performs the
following functions:
Table 3-2. Functions that the Unload Button performs
Unload Button Function How to Initiate the Function
Rewind the tape into the
cartridge and eject the
cartridge from the drive
Press the Unload Button once. The Status Light flashes green while the drive is
rewinding and unloading.
Note: During a rewind and eject operation, the drive does not accept SCSI commands
from the server.
Place the drive in
maintenance mode
Ensure that the drive is unloaded. Then, within two seconds, press the Unload Button
three times. The drive is in maintenance mode when the Status Light becomes solid
amber and
0
appears in the SCD.
Note: While in maintenance mode, the drive does not accept SCSI interface
commands.
Note: If you attempt to enter Maintenance Mode with a cartridge in the drive, the drive
will rewind and eject the cartridge. Remove the cartridge and repeat the steps for
entering Maintenance Mode.
Scroll through the
maintenance functions
While in maintenance mode, press the Unload Button once per second to increment
the display characters by one. When you reach the character of the diagnostic or
maintenance function that you want (see “Diagnostic and Maintenance Functions” on
page 3-7), press and hold the Unload Button for three seconds.
Exit maintenance mode
Press the Unload Button once per second until
0
displays. Then press and hold the
Unload Button for three seconds. Maintenance mode is exited when the Status Light
becomes solid green and the SCD becomes blank.
Force a drive dump (part of
the maintenance mode)
Attention: If the drive detects a permanent error and displays an error code, it
automatically forces a drive dump (also known as a save of the firmware trace). If you
force a drive dump, the existing dump will be overwritten and data will be lost. After
you force a drive dump, do not turn off the power to the drive or you may lose the
dump data.
Choose one of the following procedures:
v If the drive is in maintenance mode (Status Light is solid amber), refer to “Function
Code 4: Force a Drive Dump” on page 3-12.
v If the drive is in operating mode (Status Light is solid or flashing green), press and
hold the Unload Button for ten seconds.
If captured dump data exists, the drive places it into a dump area (for information
about retrieving the data, see “Procedure 1: Determining Firmware Level and
Capturing Drive Dump” on page 5-1).
3-4
TS2240 Tape Drive Setup, Operator and Service Manual