PowerVault ML6000 Maintenance Guide 351
T178
T178 - Tape Drive Connection Failure
Description GUI Description: The library detected that Ethernet communication to a tape
drive has failed.
Explanation: A tape drive that is mounted in a drive sled is controlled via
serial communication by the drive sled controller. If the tape drive is also
supporting an Ethernet connection, tape drive control may also be performed
via this interface, without drive sled controller involvement. If a tape drive
Ethernet connection is used by the library and communication is lost, this
ticket is generated to report the issue.
Detection Scenarios LCB cannot communicate with the tape drive via tape drive Ethernet interface.
Root Causes • Tape drive powered off.
• Drive not connected to EEB.
• Drive not connected to LCB (if EEB is not installed).
• EEB not connected/operational (separate ticket T177 also shown).
• Internal drive sled Ethernet routing/connection failure.
• LCB Ethernet hub is not working correctly.
Service Resolution
Steps
Perform DR131 - Resolve Tape Drive Connection Failure
on page 417.
Possible CRUs/FRUs None
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