Troubleshooting & Diagnostics Diagnostic Information

 

Table 22. DDS Tape Module Drive Error Codes

 

 

Code

Description

 

 

06h

Capstan motor stalled.

07h

During calibration, servo failed to converge to a value within the correct range.

08h

Drum is stationary when it should be rotating.

09h

Drum phase lock lost during a write. The drive failed to maintain drum phase

 

relative to tape, so tracks are starting too early or too late.

0Dh

During a mode movement, 20s elapsed without reaching target position, or 6.4s

 

elapsed without any change in rotary encoder state.

15h

Servo did not see first command.

16h

Drum failed to stop rotating.

17h

Reels stuck while drive in process of threading tape.

18h

Supply reel stuck during capstan or reel-driven tape motion.

19h

Servo ROM checksum failure.

1Ah

Too many reel FG pulses detected from supply reel during capstan or reel-driven

 

tape motion.

1Bh

Take-up reel stuck during capstan or reel-driven tape motion.

1Ch

Too many reel FG pulses detected from take-up reel during capstan or reel-driven

 

tape motion.

1Dh

Attempt to execute download routine failed because download version does not

 

correspond to version of servo firmware.

1Eh

Communication protocol error indicates servo is “busy” when it should not be.

1Fh

Servo cannot respond because it is hung.

20h

Filemark encountered during a read, write, or spacing operation.

21h

Setmark encountered during a read, write, or spacing operation.

22h

Record of unexpected length was read.

23h

Format error in the group just read. MEDIUM ERROR.

24h

Buffer firmware does not know the logical tape position. MEDIUM ERROR.

25h

Parity error on reading data from the buffer. HARDWARE ERROR.

26h

Mismatch in number of bytes transferred to and from SCSI, due to firmware or

 

hardware failure. HARDWARE ERROR.

27h

Illegal machine state detected. HARDWARE ERROR.

28h

Illegal buffer command received. HARDWARE ERROR.

29h

Illegal parameters sent with a valid buffer command. HARDWARE ERROR.

2Ah

Space or Locate failed; position specified is in middle of a compressed entity.

2Bh

Write Setmarks failed because it would cause the number of setmarks in the

 

current partition to exceed 65535. No error is logged to EEPROM. ILLEGAL

 

REQUEST.

 

 

85

Troubleshooting