IBM System Storage TS3310, Maintenance Information

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T144: I/O Station Door Sensor Stuck
Description GUI Description: An I/E (or I/O) station sensor switch is reporting incorrect
sensor status and may be stuck.
Explanation: The library controller detected that an I/O station sensor is not
reporting a valid status. The problem may be caused by a stuck sensor in the
I/O station lock assembly with a control module or expansion module. Door
open and close state changes are not detected reliably, and premature I/O
station teach operations may occur, or no teach and inventory operation may
be triggered at all.
Detection Scenarios When processing a state change on either of the two sensor switches, if the
sensor switch causing the interrupt is activated, the opposite sensor switch is
checked to see if it is activated too. If they are both active, one sensor switch
is stuck.
Root Cause
v A sensor switch is obstructed by foreign material.
v
A sensor switch is binding or sticking.
v
A sensor switch is broken.
Possible FRU Replacement I/O Station Lock Assembly
Resolution See “DR025: Resolve Stuck I/O Station Sensor” on page 6-69.
T145: Media Removal Notification
Description The library detected an expected cartridge removal from a configured I/E (or
I/O) area element.
Explanation The library is configured for Media Security Notification and detected an
expected removal of media. Media removal is expected whenever an
exported cartridge has been physically removed by an operator from an I/O
area element.
Detection Scenarios After I/O elements have been inventoried, the library determined that a
previously exported cartridge is no longer present.
Root Causes An exported cartridge has been removed from the library.
Resolution Perform “DR106 - Resolve Media Security Notification” on page 6-91.
T146: Media Removal Warning
Description The library detected an unexpected cartridge removal from the library.
Explanation The library is configured for Media Security Notification and detected an
unexpected removal of media. Media removal is not expected if the cartridge
is no longer found in previously configured storage and drive elements, as
well as the medium changer (picker) element itself. Media removal is also
not expected from configured I/O area elements, unless the tape cartridge
had been moved to such element by robotic motion.
Detection Scenarios After an inventory operation, the library determined that a previously
configured, but not exported, tape cartridge is no longer present.
Root Causes A tape cartridge has been removed from the library without having been
properly exported by the robot.
Resolution Perform “DR106 - Resolve Media Security Notification” on page 6-91.
6-58
TS3310 Tape Library Maintenance Information
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