MODE SELECT 15h/55h
C
omm
an
ds
73
Mode page representation
Certain conventions are used in the following Mode Parameter pages in order to describe the
nature of the parameters. Most parameters are given by name, followed by a number in brackets.
The brackets have the following meanings:
Mode data format
Mode data consists of a 4-byte header, optionally followed by block descriptor and Mode
Parameter pages:
Mode parameter pages
HP Ultrium drives support the following pages:
•
01h “Read-Write Error Recovery mode page” on page 76
•
02h “Disconnect-Reconnect page” on page 78
•
0Ah “Control mode page” on page 79
•
0Fh “Data Compression log page” on page 68
•
10h “Device Configuration page” on page 81
•
11h “Medium Partitions mode page” on page 83
Square brackets [ ]
Square brackets indicate that the parameter may be modified. The number inside the
brackets is the default value for the field—in other words, the power-up or reset
value.
•
M
ODE SELECT
may modify this value by sending the page with a new value in
the field.
•
M
ODE SENSE
(current values) will return the current value of the parameter.
•
M
ODE SENSE
(default values) will return the value in brackets [].
•
M
ODE SENSE
(changeable values) will return a value of all ones.
Round brackets ( )
Round brackets indicate that the parameter is fixed. The number inside the brackets is
the fixed value for the field.
•
M
ODE SELECT
must set the parameter to this value, otherwise
CHECK
CONDITION
will be reported with a sense key of
ILLEGAL REQUEST.
•
M
ODE SENSE
(default values) will return the fixed value.
•
M
ODE SENSE
(changeable values) will return a value of all zeros.
7
6
5
4
3
2
1
0
1
(MSB)
Mode Parameter Header
3
(LSB)
4
(MSB)
Mode Block Descriptor
11
(LSB)
12
(MSB)
Mode Parameter Pages
n
(LSB)
