Error Codes

Error Codes

If the tape library experiences a problem while running, it reports the SCSI ASCIASCO bytes to the host computer and posts an error code on the operator panel (see Figure 16).
In addition to an error code, UnSafe or DRIVERS HOT might be shown on the operator panel.
UnSafe is shown when the front door is opened.
DRIVERS HOT is shown when the motor driver exceeds its maximum operating temperature.
Either UnSafe or DRIVERS HOT cause the tape library to immediately turn off all motor power.
As a result, error codes reported in conjunction with UnSafe or DRIVERS HOT actually represent secondary errors.

+-------------------+ | INIT ERROR: 18 | | Home X Axis | | RS232 Diagnostic | | Interface Enable | +-------------------+
Figure 16. Example of an Error Code

(below) Figure 17 lists the error codes, descriptions of the errors, probable cause ot the errors, and the module or assembly that you can replace to correct the error (see the Note at the bottom of the table for a list of terms used in the descriptions).
The tape library has four major modules or assemblies that you can replace:

Tape drive modules
Controller
Power supply
Base tape library

The base tape library is one in which the tape drives, controller, and power supply have been removed.
Other replaceable components that can contribute failure, but do not necessarily appear as an error code are:

Drive-to-drive and drive-to-controller SCSI cables
SCSI terminator
Bar code reader
Tape library display
Tape cartridge magazine

Errors with codes less than 128 are hard errors. Errors greater than 128 are informational.

-Attention- For many of the error codes listed in (below) Figure 17 (especially those which have a probable cause involving mechanical or shuttle binding), it is important to thoroughly inspect the shuttle path for correctable causes.
The inspection procedure is listed in the MAPs. A thorough inspection may also reveal obvious mechanical or electrical problems that can only be repaired by replacing the base tape library, which, if listed in Figure 17, is usually last in the Replaceable Component column.
The order of the FRU or replacement component tor each error code is not associated with the probability of failure.

Figure 17. Tape Library Error Codes

Error Code Error Description (see Note) Probable Cause Replaceable Component 1 Servo controller did not come ready in time. Controller 2 Servo controller command sequence error. Controller 3 Servo controller did not initialize. Controller 4 Internal software error. Controller 5 Difference between desired position and actual position exceeded tolerance. See ASCQ bytes on the host to identity axis. ASCQ=: OxA1 refers to X-axis OxB1 refers to rack OxC1 refers to Z-axis Mechanical binding of axis Controller Power supply Base tape library 6 Motion controller position overflowed. Controller 7 Move in progress timed out. Controller 8 Servo controller reported BUSY too long. Controller 9 Z-axis position overflowed during pick or place. Controller 10 Pick operation timed out. Controller 11 Homing of rack took too long. Controller 12 During homing of rack, the difference between the rack actual and desired location exceeded tolerances. Rack binding Main motor Rack home sensor Rack clutch Controller Power supply Base tape library 13 Rack position overflowed during rack homing. Controller 14 Home of normal force actuator took too long. Normal force arm binding Normal force home sensor Controller base tape library 15 Gate actuator hung on magazine cell gate. Gate actuator movement. Remove magazine and check the gate actuator on shuttle for proper movement. Magazine 17 Home of X-axis took too long. Controller 18 During homing of X-axis the difference between the actual and desired location exceeded tolerances. Controller Power supply Base tape library 19 X-axis position overflowed during homing. Controller 20 Internal software error. Controller 21 X-axis controller address overflowed during magazine present detection. Controller 22 X-axis difference between desired and actual position exceeded tolerance during magazine present detection phase. Excessive binding in X-axis Main motor Controller Power supply Base tape library 23 Magazine present detection took too much time. Controller 24 X-controller address overflowed while moving to element. Controller 25 Difference between actual and desired position exceeded tolerances during move to element. Shuttle binding to rails Controller Power supply Base tape library 26 Move to element taking too much time. Controller 29 Difference between actual and desired position exceeded tolerances during cartridge latch into drive. Shuttle binding on rails Drive Controller Power supply Base tape library 30 Controller address overflowed during cartridge latch into drive. Controller 31 Cartridge latch took too long. Controller 35 During cartridge retract, the difference between the actual and desired location exceeded tolerances. Z-wheels binding Z-motor Power supply X-clutch Controller Power supply Base tape library 36 Z-axis position overflowed during cartridge retract. Controller 37 Cartridge retract took too long. Controller 38 Picker lost cartridge and was unable to recover moving cartridge to picker home. Normal force belt dirty Shuttle alignment Cartridge present sensor Base Tape Library 39 While centering the cartridge in the shuttle, the difference between the actual and desired location exceeded tolerances. Normal force binding Main motor Controller Power supply Base tape library 40 Position overflowed during cartridge centering. Controller 41 Cartridge centering took too long. Controller 42 Drive A handle did not open. Upper tape drive module Tape drive A module Controller Power supply 43 Drive A handle did not close. Tape drive A module Controller Power supply 44 Drive B handle did not open. Tape drive B module Controller Power supply 45 Drive B drive handle did not close. Tape drive B module Controller Power supply 47 While placing a cartridge, the difference between the actual and desired location exceeded tolerances. Shuttle binding Main motor Controller Power supply Base tape library 48 Position overflowed during cartridge placing. Controller 49 Placing took too long. Controller 50 Could not center cartridge in shuttle. Shuttle binding Controller Base tape library 51 While homing the rack with a cartridge in the shuttle, the difference between the actual and desired location exceeded tolerances. Rack binding Main motor Rack clutch Controller Power supply Base tape library 52 While homing the rack with a cartridge in the shuttle, the difference between the actual and desired location of the rack exceeded tolerances. Rack binding Main motor Controller Power supply 129 The tape library was unable to unlatch cartridge from magazine after 20 retries. Replace Magazine 130 Drive A was not unloaded prior to command to remove cartridge from drive A. Host software error 131 Drive B was not unloaded prior to command to remove cartridge from drive B. Host software error 143 The tape library was instructed to remove a cartridge from an empty element. Host software error 144 In remote diagnostic mode, an out of range element was selected as either the source or destination. Operator 145 The tape library was UnSafe when a motion command was initiated. If this occurs with the unit in the safe condition check the front panel interlock. 146 The drive interposer dropped during extraction of cartridge. The tape library reinserted the cartridge into the same drive. Informational 149 The serial EEPROM was unable to be read on power up. Controller 152 Internal software error. Controller 153 Internal software error Controller 154 No cartridges in the tape library while starting confidence tests. Operator 155 During a place-move recovery following unsafe or power-out recovery, the destination cell (magazine) was removed by user. Remove the cartridge from the shuttle. 156 Pick was attempted from empty cell. Host software error Cartridge present sensor Base Tape Library 157 Internal self test DRVLDULD detected drive inactive too long. Drive error SCSI connection bad

Error Code	Error Description (see Note)	Probable Cause	Replaceable Component
1	Servo controller did not come ready in time.		Controller
2	Servo controller command sequence error.		Controller
3	Servo controller did not initialize.		Controller
4	Internal software error.		Controller
5	Difference between desired position and actual position exceeded tolerance. See ASCQ bytes on the host to identity axis. ASCQ=: OxA1 refers to X-axis OxB1 refers to rack OxC1 refers to Z-axis	Mechanical binding of axis	Controller Power supply Base tape library
6	Motion controller position overflowed.		Controller
7	Move in progress timed out.		Controller
8	Servo controller reported BUSY too long.		Controller
9	Z-axis position overflowed during pick or place.		Controller
10	Pick operation timed out.		Controller
11	Homing of rack took too long.		Controller
12	During homing of rack, the difference between the rack actual and desired location exceeded tolerances.	Rack binding Main motor Rack home sensor Rack clutch	Controller Power supply Base tape library
13	Rack position overflowed during rack homing.		Controller
14	Home of normal force actuator took too long.	Normal force arm binding Normal force home sensor	Controller base tape library
15	Gate actuator hung on magazine cell gate.	Gate actuator movement. Remove magazine and check the gate actuator on shuttle for proper movement.	Magazine
17	Home of X-axis took too long.		Controller
18	During homing of X-axis the difference between the actual and desired location exceeded tolerances.		Controller Power supply Base tape library
19	X-axis position overflowed during homing.		Controller
20	Internal software error.		Controller
21	X-axis controller address overflowed during magazine present detection.		Controller
22	X-axis difference between desired and actual position exceeded tolerance during magazine present detection phase.	Excessive binding in X-axis Main motor	Controller Power supply Base tape library
23	Magazine present detection took too much time.		Controller
24	X-controller address overflowed while moving to element.		Controller
25	Difference between actual and desired position exceeded tolerances during move to element.	Shuttle binding to rails	Controller Power supply Base tape library
26	Move to element taking too much time.		Controller
29	Difference between actual and desired position exceeded tolerances during cartridge latch into drive.	Shuttle binding on rails Drive	Controller Power supply Base tape library
30	Controller address overflowed during cartridge latch into drive.	Controller
31	Cartridge latch took too long.		Controller
35	During cartridge retract, the difference between the actual and desired location exceeded tolerances.	Z-wheels binding Z-motor Power supply X-clutch	Controller Power supply Base tape library
36	Z-axis position overflowed during cartridge retract.		Controller
37	Cartridge retract took too long.		Controller
38	Picker lost cartridge and was unable to recover moving cartridge to picker home.	Normal force belt dirty Shuttle alignment Cartridge present sensor	Base Tape Library
39	While centering the cartridge in the shuttle, the difference between the actual and desired location exceeded tolerances.	Normal force binding Main motor	Controller Power supply Base tape library
40	Position overflowed during cartridge centering.	Controller
41	Cartridge centering took too long.		Controller
42	Drive A handle did not open.	Upper tape drive module	Tape drive A module Controller Power supply
43	Drive A handle did not close.		Tape drive A module Controller Power supply
44	Drive B handle did not open.		Tape drive B module Controller Power supply
45	Drive B drive handle did not close.		Tape drive B module Controller Power supply
47	While placing a cartridge, the difference between the actual and desired location exceeded tolerances.	Shuttle binding Main motor	Controller Power supply Base tape library
48	Position overflowed during cartridge placing.		Controller
49	Placing took too long.		Controller
50	Could not center cartridge in shuttle.	Shuttle binding	Controller Base tape library
51	While homing the rack with a cartridge in the shuttle, the difference between the actual and desired location exceeded tolerances.	Rack binding Main motor Rack clutch	Controller Power supply Base tape library
52	While homing the rack with a cartridge in the shuttle, the difference between the actual and desired location of the rack exceeded tolerances.	Rack binding Main motor	Controller Power supply
129	The tape library was unable to unlatch cartridge from magazine after 20 retries.		Replace Magazine
130	Drive A was not unloaded prior to command to remove cartridge from drive A.	Host software error
131	Drive B was not unloaded prior to command to remove cartridge from drive B.	Host software error
143	The tape library was instructed to remove a cartridge from an empty element.	Host software error
144	In remote diagnostic mode, an out of range element was selected as either the source or destination.	Operator
145	The tape library was UnSafe when a motion command was initiated.		If this occurs with the unit in the safe condition check the front panel interlock.
146	The drive interposer dropped during extraction of cartridge. The tape library reinserted the cartridge into the same drive.	Informational
149	The serial EEPROM was unable to be read on power up.		Controller
152	Internal software error.		Controller
153	Internal software error		Controller
154	No cartridges in the tape library while starting confidence tests.	Operator
155	During a place-move recovery following unsafe or power-out recovery, the destination cell (magazine) was removed by user.		Remove the cartridge from the shuttle.
156	Pick was attempted from empty cell.	Host software error Cartridge present sensor	Base Tape Library
157	Internal self test DRVLDULD detected drive inactive too long.	Drive error SCSI connection bad

Note: The following terms are used in the Error Description column of this table.

Gate actuator. A metal arm used to unlatch cartridges from the magazine. Located on the lower right front of the shuttle assembly.

Main motor. As viewed from the front of the library, the drive motor located behind the key switch and on the right of the library.

Normal force arm. A metal rocker arm assembly, with two rollers that move cartridges in and out of the shuttle.
As viewed from the front of the library, located on the left side of the shuttle assembly.

Normal force home sensors. Two sensors that detect whether the normal force arm homes in the direction of the magazine or the DLT drive.
The two interrupter-type sensors are located at the left front and rear sides of the shuttle assembly.

Normal force motor. A small motor that drives the normal force arm. Located on top of the shuttle assembly.

Normal force wheels. Located on each end of the normal force arm, the small wheels that slide cartridges in and out of the shuttle assembly.

Passthru mechanism. A second shuttle mechanism that passes cartridges between the upper and lower units. Not available.

Passthru drive motor. Located on top of the passthru mechanism, in the top unit of the library. Not available.

Rack arm. A black, plastic 'tongue' that determines whether a cartridge is present in a drive.
The rack slides in and out of the shuttle on the Z axis. As viewed from the front of the library, located on the left of the shuttle assembly.

Rack home position. The position that the rack is in when the rack arm is retracted completely into the shuttle assembly.

Rack home sensor. An optical interrupter-type sensor. Located on the back of the shuttle assembly and directly under the rack arm.

Rack clutch. A mechanism that determines the Z-axis direction of the rack arm.
Located at the top rear of the shuttle assembly, and positioned slightly below the normal force motor.

X-axis. The axis of motion that the shuttle assembly moves along.
As viewed from the front of the library, this is a left-to-right movement.

X-axis clutch. As viewed from the front of the library, located on the right, behind the main drive motor.

X-axis home position. As viewed from the front of the library, the far left of the library.
When the X-axis is homed, the shuttle is behind the bar code reader assembly.

Z-axis. The axis of motion that the tape cartridge moves along.
As viewed from the front of the library, this is a front-to-back movement.

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