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The Accumulated start-stop cycles is a parameter provided by the device sever. The accumulated
start-stop cycles parameter shall not be savable by the application client using the LOG SELECT
command. The parameter value is a 4-byte binary number. The value indicates how many start-stop
cycles the device has detected since its date of manufacture. For rotating magnetic storage device, a
single start-stop cycle is defined as an operational cycle that begins with the disk spindle at rest,
continues while the disk accelerates to its normal operational rotational rate, continues during the
entire period the disk is rotating, continues as the disk decelerates toward a resting state, and ends
when the disk is no longer rotating. The count is incremented by one for each complete start-stop
cycle. No comparison with the value of parameter 0003h shall be performed by the device server.
4.2.9
Application client page (X'0F')
Bit
Byte
0
1
2
3
All of the following parameters have this header.
Page Length will be defined based on the value of Parameter Pointer. (CDB 5-6)
4.2.9.1 General usage application client parameter data (Page 0F, Code 0000-003F)
Bit
Byte
4
5
6
7
8
9
~
~
258
259
C141-E167
7
6
5
0
0
0
7
6
5
(MSB)
X'0000'-X'003F' (Parameter code)
(Application Client Parameter)
DU
DS
TSD
1
0
0
(MSB)
~
~
General Usage Paramter Bytes
4
3
0
1
X'00' (Reserved)
Page Length (MSB)
Page Length (LSB)
4
3
ETC
TMC
0
0
X'FC' (Parameter Length)
4.2 Log Parameters
2
1
0
1
1
1
2
1
0
(LSB)
LBIN
LP
0
1
1
~
~
(LSB)
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