Chapter 4 SCSI Commands
MODE SENSE (6) / (10) Command (1Ah / 5Ah)
DLT-S4 Interface Reference Guide
197
Figure 104 TapeAlert
MODE
SENSE
Page — Field
Descriptions
Field
Description
PS
Parameters Savable. Always set to 0.
SPF
SubPage Format. Always set to 0. Indicates that this page uses the page_0 page
format.
Page Code
Identifies the type of
MODE SENSE
page being transferred. A value of 1Ch identifies
this as the TapeAlert Page.
Page Length
Indicates the number bytes in the page, excluding bytes 0 and 1.
Perf
Performance. Always set to 0.
EBF
Enable Background Function. Always set to 0.
EWASC
Enable Warning. Always set to 0.
DExcpt
Disable Information Exception Operations. Default value is 1. When set to 0, the
reporting method specified by the contents of the MRIE field is selected. When set to
1, all information exception operations are disabled and the drive ignores the
contents of the MRIE field. When in this mode, the software polls the TapeAlert Log
page.
Test
Always set to 0.
LogErr
Error Log. Always set to 0.
MRIE
Method for Reporting Informational Exceptions. The drive uses the contents of this
field to report information about exception conditions. Four methods are available:
Value
Method
00h
No reporting of Informational Exception Conditions. The drive does not
report information exception conditions.
03h
Conditionally Generate Recovered Error. This value is the default. The
drive reports informational exception conditions, if reports of recovered
errors are allowed, by returning
CHECK CONDITION
status on the next
SCSI command (except
INQUIRY
and
REQUEST SENSE
commands)
following detection of the condition.