User Manual

SCSI Commands Reference Manual, Rev. J 373
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5.2.24 Utilization log page (0Eh/01h)
5.2.24.1 Utilization log page overview
Using the format shown intable 359, the Utilization log page reports estimates of the rate at which device wear factors (e.g.,
damage to the recording medium) are being used. The parameter codes for the Utilization log page are defined in table 353.
The Utilization log page has the format defined in table 359.
DS bit, SPF bit, PAGE CODE field, SUBPAGE CODE field, and PAGE LENGTH field
The DS bit, SPF bit, PAGE CODE field, SUBPAGE CODE field, and PAGE LENGTH field are described in 5.2.2 and shall be set to the values shown in
table 354 for the Utilization log page.
Table 353 Utilization log page parameter codes
Parameter code Description
Resettable or
Changeable
[a]
Reference
Support
Required
0000h
Workload Utilization
Never 5.2.24.2 Mandatory
0001h
Utilization Usage Rate Based on Date and Time
Never 5.2.24.3 Optional
All others
Reserved
[a] The keywords in this column – Always, Reset Only, and Never – are defined in 5.2.2.3.
Table 354 Utilization log page
Bit
Byte
7 6 5 4 3 2 1 0
0 DS (1b) SPF (1b) PAGE CODE (0Eh)
1 SUBPAGE CODE (01h)
2 (MSB)
PAGE LENGTH (n-3)
3 (LSB)
UTILIZATION LOG PARAMETERS
4
Utilization log parameter [first] (see table 353). . .
. . .
Utilization log parameter [last] (see table 353). . .
n