User Manual

SCSI Commands Reference Manual, Rev. J 317
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5.2.5 Background Operation log page (15h/02h)
5.2.5.1 Background Operation log page overview
Using the format shown in table273, the Background Operation log page reports parameters that are specific to background
operations.
DS bit, SPF bit, PAGE CODE field, SUBPAGE CODE field, and PAGE LENGTH field
The disable save (DS) bit, the subpage format (SPF) bit, the PAGE CODE field, the SUBPAGE CODE field, and the PAGE LENGTH field are described
in 5.2.2.1.
SPF bit, PAGE CODE field, and SUBPAGE CODE field
The SPF bit, the PAGE CODE field, and the SUBPAGE CODE field shall be set to the values shown in table 283 for the Background Operation log
page.
The parameter codes for the Background Operation log page are listed in table 284.
Table 283 Background Operation log page
Bit
Byte
7 6 5 4 3 2 1 0
0 DS (1) SPF (1b) PAGE CODE (15h)
1 SUBPAGE CODE (02h)
2 (MSB)
PAGE LENGTH (n-3)
3 (LSB)
Background Operation parameter
4
Background Operation parameter [first] (if any). . .
. . .
Background Operation parameter [last] (if any). . .
n
Table 284 Background Operation log page parameter codes
Parameter code Description
Resettable or
Changeable
[a]
Reference
Support
Required
0000h
Background Operation
Never 5.2.5.2 Mandatory
All others
Reserved
[a] The keywords in this column – Always, Reset Only, and Never – are defined in 5.2.2.3.