User's Manual

DLT4000 SCSI Interface
DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 8-33
Parameter Value
This field is the actual value of this log parameter.
Parameter
Code Description
00h Errors corrected with substantial delays
01h Errors corrected with possible delays
02h Total rewrites or rereads
03h Total errors corrected
04h Total times correction algorithm processed
05h Total bytes processed
06h Tortal uncorrected errors
8000h Vendor Unique
Figure 8-16 Parameter Codes Supported
Parameter codes 00h, 01h, and 04h will always return a value of zero.
_________________________ NOTE ____________________________
Parameter value for code 05h will be 8 bytes; the parameter length will be
set to 8.
___________________________________________________________
Error Detection Summary in Log Select Pages
The host should issue a LOG SENSE command to initialize host software which
allows:
• Correct determination of the pages the drive uses
• Determination of the parameter codes and length of each parameter
The following conditions constitute errors in the parameter block that will cause the
drive to return CHECK CONDITION with the sense data set to ILLEGAL REQUEST
and additional sense code INVALID FIELD IN PARAMETER LIST:
• If a page header is received with unsupported page codes
• Incorrect log page length is specified in the page header
• An illegal parameter code within a valid page code
• Parameter codes for a supported page are not sent in ascending order
• LP bit is set to 1 in the parameter control byte
• DS bit is set to zero in the parameter control byte
• TSD bit is set to zero in the parameter control byte