120 Product Manual - Disc Drive SCSI-2/SCSI-3 Interface (Vol. 2; Ver. 2), Rev. E
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(1) The specified parameter values in the log counters as of the last update (updated by Log Select
command, Log Sense command or done automatically by the drive for cumulative values).
(2) The saved values if an update has not occurred since last power-on, hard reset condition, or Bus
Device Reset message (assumes saved values are available).
(3) If saved values are not available, the default values are sent if an update has not occurred since the
last power-on, hard reset condition, or Bus Reset message.
[4] Page code field. The page code field specifies the page of data requested by the command (see Table
5.1.3.2-6). If a page code is sent that is not implemented, the drive terminates the command with Check
Condition status. The sense key is set to Illegal Request with the additional sense code set to Invalid
Field In CDB.
Table 5.1.3.3-2. (PAGE CODE 00h) returns the list of log pages that the drive supports.
Table 5.1.3.3-2. Supported Log Pages
Bit
7
6
5
4
3
2
1
0
Byte(s)
0
Reserved
Page Code (00h)
1
Reserved
2
(MSB)
Page Length (n-3) [1]
3
(LSB)
4
:
Supported Page List [2]
n
This page is not defined for the LOG SELECT command.
Notes. [1] The page length field specifies the length in bytes of the following supported page list.
[2] The supported page list field shall contain a list of all log page codes implemented by the
target in ascending order beginning with page code 00h.
[5] Parameter Pointer. This field contains a Parameter Code that specifies that log parameter data be re-
turned to the initiator by the data-in phase starting with the Parameter Pointer code log parameter data
and continuing to the maximum allocation length or to (an including) log parameter data of the maximum
parameter code supported by the drive, whichever is less. If the value of the Parameter Pointer field is
larger than the largest available parameter code that can be returned by the drive on the specified page,
the drive terminates the command with a Check Condition status. The sense key is set to Illegal Request
and the additional sense code is set to Invalid Field In CDB.
[6] Allocation Length. This field informs the drive of the amount of space available for returning log param-
eter data. If the allocation length is too small, the drive sends as much data as can fit in the allocation
length without truncating a log parameter. The initiator can retrieve the rest of the log page information by
setting the parameter pointer to the last returned parameter code and reissuing the log sense command.
This process may be repeated as necessary to retrieve all the available information.
[7] Flag and Link bits are used as previously defined in paragraph 4.2.6.
