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MODE SENSE
0
1
2
M
allows the drive to return its current configuration and report
ODE SENSE
which configuration parameters can be changed through
The mode sense header, block descriptor (optional), and zero or more of the
are sent to the host. Mode pages contain drive configuration parameters.
Some of these parameters are fixed, others are configurable (through the
command). The host should use
MODE SELECT
which drive parameters are configurable and what their current values are
before using mode select to alter them.
Note
See
MODE SELECT
Parameters.If a
immediate reported Load command is executing or close to
completing then the values of some parameters in some mode
pages which depend on the results of the load may be
undefined.
Similarly, the write-protect field in the Mode Parameter Header
will be unstable unless a cartridge is present and medium
removal is prevented.
Pre-Execution Checks:
Illegal Field
Reservation
The page code field must contain a valid mode page code or the value 0 or
the value 3Fh. If it does not then
data will be as described in the Illegal Field Checks.
Command Descriptor Block:
6-Byte Version
7
6
5
Reserved (0)
PC
MODE SENSE
on
page 72
for full descriptions of the Mode
command is issued whilst an
MODE SENSE
Deferred Error
CHECK CONDITION
4
3
Operation Code (1Ah)
DBD
Page Code
1Ah/5Ah
MODE SELECT.
to determine
Unit Attention
status is reported. Sense
2
1
0
Reserved (0)
Commands
91
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