Unload Button
The Unload Button (1 in Figure 35 on page 66) performs the following functions:
Table 10. Unload Button Functions
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 LED 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, press and hold the Unload
Button for 6 seconds. The drive is in maintenance mode when the
Status LED becomes solid amber and 0 appears in the SCD.
Notes:
1. While in maintenance mode, the drive does not accept SCSI
interface commands.
2. 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 72),
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 LED 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 LED is solid amber),
refer to “Function Code 4: Force a Drive Dump” on page 74.
v If the drive is in operating mode (Status LED 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.
Reset the drive Press and hold the Unload Button until the drive begins the reset
procedure (Status LED will be amber).
Note: If a tape cartridge is loaded in the drive the drive will
unload the tape. Repeat the reset procedure after the tape is
unloaded. The drive saves a dump of the current drive state, then
reboots to allow communication. Do not cycle power as this will
erase the contents of the dump.
Chapter 6. Half High LTO-5 Tape Drive 71
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