User's Manual
DLT2000/DLT2500/DLT2700 Cartridge Tape Subsystem B-1 
Appendix B 
Definition of Vendor Unique Sense Data 
Information 
B.1 In This Appendix 
Appendix B lists the internal status codes with their descriptions. 
B.2 Internal Status Code 
The internal status code is located at byte offset 18 of the request sense data and may be 
available after certain types of failures. 
_________________________ Note _____________________________ 
This byte has two formats: a byte code, and a bit flags format. The bit flags 
format is used when there is no internal status code to report, and can be 
distinguished by bit 7 being set. 
___________________________________________________________ 
Table B-1 Internal Status Code   
Dec Hex Description 
0 0 No meaning 
1  1  Reed-Solomon Error Correction Code recovery 
2  2  Read or write block retry (soft retry) 
3  3  Reposition command aborted 
4  4  Controller has stopped reading 
5  5  No control or data buffers available 
6  6  Target delivered in read ahead 










