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50 Zeus
IOPS
3.5-Inch Fibre Channel Solid State Drive Product Manual Rev. 1.0
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 27. 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
Byte
765 4 3210
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 28. 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