3.1.17LOG SENSE (4D)

Bit

7

 

6

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

X'4D'

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

LUN

 

 

0

0

 

0

PPC

SP

 

 

 

 

 

 

 

 

 

 

 

2

 

PC

 

 

 

 

Page Code

 

 

 

 

 

 

 

 

 

 

 

 

 

3

0

0

0

0

0

 

0

0

0

 

 

 

 

 

 

 

 

 

 

4

0

0

0

0

0

 

0

0

0

 

 

 

 

 

 

 

 

 

5

 

 

 

 

Parameter Pointer (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

Parameter Pointer (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

Parameter List Length (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

Parameter List Length (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

9

0

 

0

0

0

0

 

0

Flag

Link

 

 

 

 

 

 

 

 

 

 

 

 

 

This command provides a means for the application client to retrieve statistical or other operational information maintained by the device about the device or its logical units.

It is a complementary command to the LOG SELECT command.

The "Parameter Pointer Control (PPC)" bit is not supported. It should be zero.

An "Save Parameters (SP)" bit of zero indicates the device server performs the specified this command and does not save any log parameters. If saving log parameters is implemented, an "SP" bit of one indicates that the device server performs the specified this command and saves all log parameters identified as savable by the "DS" bit to the disc medium.

The "Page Control (PC)" field defined the type of parameter values to be selected (see 3.1.16 for the definition of the page control field).

The "PC" bits are ignored by the drive. The drive assumes that current cumulative parameters are selected.

The "Page Code" field identifies which page of data is being requested. If the page code is reserved or not implemented, the device server terminates the command with CHECK CONDITION status (ILLEGAL REQUEST [=5] / Invalid field in CDB [=24-00]).

The "Page Code" assignments for the log pages are listed below.

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Image 121
Fujitsu MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES specifications LOG Sense 4D, Lun Ppc

MAN3735, MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES, MAN3367, MAN3184 specifications

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