Chapter 5  Troubleshooting
A503: SDLT Drive-Servo Error
SuperLoader User’s Guide 207
Table 33   Drive Servo 
Error Field 
Descriptions
6
Physical Block Number (PBN)
7-11
12
Power on Hours (LSW) Power on Hours (MSW)
13
Head Wear Hours
14
POST Flags (MSW)
15
POST Flags (LSW)
16-36
Field Description
Description
Value
Calibration Failure 0x15
Drive Command 
Time Out 
0x09
Controller to 
Drive Interface
0x0A
Drive Command 
Time Out
0x21
Drive Event  0x20
Drive Error Code: Error code from Servo processor
Major Error Code
Description Possible Action
0000h-001Fh Power on Self Test 
Error
Check Power
Check Post Flags