
Zeus
IOPS
3.5-Inch Fibre Channel Solid State Drive 57
MODE SENSE (10) COMMAND (5Ah)
The MODE SENSE (10) command provides a means for a target to report parameters to the initiator.
It is complementary to the MODE SELECT (10) command. Byte 9 is ignored.
Table 39. Mode Sense (10) Command (5Ah)
A Disable Block Descriptors (DBD) bit of zero indicates that the target may return zero or more block
descriptors in the returned MODE SENSE data, at the target's discretion. A DBD bit of one specifies
that the target shall not return any block descriptors in the returned MODE SENSE data. The page
control (PC) field defines the type of mode parameter values to be returned in the mode pages. The
page code specifies which mode page to return.
Bit
Byte76543210
0 Operation Code (5Ah)
1
000
Reserved DBD Reserved
Reserved
2 PCF Page Code
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7 (MSB)
Allocation Length
8 (LSB)
9 Control
Table 40. Page Code Field Descriptions for Mode Sense (10)
Page Code Description Subclause
00h
Vendor-specific (does not require page format)
01h - 1Fh
See specific device types
20h - 3Eh
Vendor-specific (page format required)
3Fh
Return all mode pages
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