
62 Zeus
IOPS
3.5-Inch Fibre Channel Solid State Drive
EVENTS CURRENT VALUES
The LOG SENSE and LOG SELECT commands will report the previously detailed events. The LOG
SENSE command will only report the current values. As current values are only supported by the
LOG SELECT command is only available to reset the values as described in the following sections.
Commands issued with values that are not supported or are invalid are terminated with a CHECK
CONDITION status, with the sense key set to ILLEGAL REQUEST and the additional sense code set
to INVALID FIELD IN CDB. Commands that supply parameter pages that are unsupported or contain
unsupported fields will be terminated with CHECK CONDITION status, with the sense key set to
ILLEGAL REQUEST and the additional sense code set to INVALID FIELD IN PARAMETER TEST.
The log pages that are supported by these commands are constructed from small log parameter
tables which each have the same defined style. The following is an example of a log parameter table.
Table 44. Log Parameter Table Example
The parameters of the table are as follows:
Bit
Byte76543210
0 (MSB)
Parameter Code
1 (LSB)
2 DU DS TSD ETC TMC Format & Linking
3 Parameter Length (n - 3)
4
Parameter Value
n
Name Description
DU Disable Update Bit If set to 0, the device shall update this parameter
according to the user-specific levels. If set to 1, the device
shall not update this parameter.
DS Disable Save If set to 1, the saving of the parameter is disabled. A value
of 0 indicates that the value may be saved.
TSD Target Save Disable If set to 0, the parameter is saved by the device at vendor-
specific intervals. If set to 1, implicit saving is disabled.
ETC Enable Threshold Comparison If set to 1, a comparison between the current and
threshold value is made whenever the parameter is
updated. Set to 0 if no comparison is made.
TMC Threshold Meet Criteria Defines the basis for which comparisons are made.
Format & Linking Specifies how the parameter value is represented.
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