Mode data format, Mode page representation, Mode parameter pages – HP Q153090901 User Manual
Page 73
MODE SELECT 15h/55h
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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.
•
MODE SELECT may modify this value by sending the page with a new value in
the field.
•
MODE SENSE (current values) will return the current value of the parameter.
•
MODE SENSE (default values) will return the value in brackets [].
•
MODE 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.
•
MODE SELECT must set the parameter to this value, otherwise CHECK
CONDITION will be reported with a sense key of ILLEGAL REQUEST.
•
MODE SENSE (default values) will return the fixed value.
•
MODE 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)