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Dell PowerVault ML6000 Maintenance Guide

Dell PowerVault ML6000
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338 Troubleshooting the Tape Library
T139
T139 - Robotics Communication Loss
Description This RAS ticket is generated by the Model 1 (GA) robot (to determine which
your library contains, see How to Determine Which Robot Your Library
Contains on page 165).
GUI Description: The library controller firmware lost communication with the
robotics subsystem.
Explanation: The library has lost communication with the Model 1 robotics
subsystem. This RAS ticket is generated if the library had previously
established a communication link with the robotics subsystem, but that link
has now been lost and cannot be reestablished.
Detection Scenarios The library firmware did establish communication with the robotics subsystem,
but encountered a communication failure during operation, and
communication could not be re-established.
Root Causes An intermittent door-open condition disconnecting power from the robot.
Damaged module terminator or module-to-module cable with bent or broken
pins.
A cable spool or connection problem.
A picker assembly hardware failure.
A Y-carriage assembly connection problem.
An LCB serial communication link failure.
Service Resolution
Steps
1 Perform DR093 - Resolve Robotics Communication Error
on page 408.
2 Check to see if there is a main door open condition, which may be caused
by an open door or a defective or loose module terminator or module-to-
module cable.
3 Inspect the module terminators and module-to-module cables for loose
connectors or damage (bent or broken pins). If damaged, replace the part.
Reseat the terminators and cables.
Possible CRUs/FRUs Note: Read and perform all resolution steps before dispatching any parts.
Dispatch the first part listed below for replacement. If this does not solve the
problem, dispatch the second part, and so on, in order. Dispatch only one part
(or set of parts) at a time.
1 Module Terminators and Module-to-Module Cables
2 Cable Spool
3 Robot Assembly (Replace entire robot. Order both the Picker Assembly and
the Y-carriage Assembly and replace as a single unit.)

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Dell PowerVault ML6000 Specifications

General IconGeneral
BrandDell
ModelPowerVault ML6000
CategoryStorage
LanguageEnglish

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