- Hewlett-Packard Tool Storage User Manual
Troubleshooting & Diagnostics 
Diagnostic Information 
85 
Troubleshooting
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. 










