Chapter 5  Troubleshooting
A500: SDLT Hard Read Error
SuperLoader User’s Guide 201
A500: SDLT Hard Read Error 5
Read Error is a recorded event indication the tape drive detected a 
condition in which the drive was not successfully able to read the data 
from a particular location on the media.
Figure 114  Hard Read 
Error/Hard Write Error 
Block Descriptor
Long Word  Byte 03 Byte 02 Byte 01 Byte 00
1
Media ID
2
 Physical Block Number (PBN)
3
      Tape Address 
4-12
13
Media Type Tape Format 
14
 Tape Number
15
       Retry Count
Logical Blk Num 
(LBN)
16
Head Wear Hours BRC Head Wear Hours