Chapter 5  Troubleshooting
A503: SDLT Drive-Servo Error
206 SuperLoader User’s Guide
Cause  5 This error could be due to an internal communication error.
Suggested 
Actions 5
Following is a list of suggested actions:
• Power cycle the unit.
• If the problem repeats, perform an SuperLoader Random Access test.
• If problem repeats, replace the DCA.
A503: SDLT Drive-Servo Error 5
The Drive Servo Error occurs when the SDLT tape drive experiences 
Servo errors. There errors will result in Tape Drive Read/Write Errors.
Figure 117  Drive 
Servo Error Block 
Descriptor
Parity Error 0x20
Framing Error  0x40
Long Word  Byte 03 Byte 02 Byte 01 Byte 00
1
Log Type
2
3
Drive Error Code Drive Status (MSW)
4
Drive Status (LSW)
5
Track Number
Description Value