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Commands154
Stream Commands Sense data descriptor
Drive Error Code Sense data descriptor (Vendor Specific)
Cleaning Needed Sense data descriptor (Vendor Specific)
Sense data management
The drive maintains three sets of sense data for every initiator on the bus. For a single host the
following sense data is maintained:
• Current sense
• U
NIT ATTENTION sense
• D
EFERRED ERROR sense
Unless otherwise stated, all the following descriptions apply to the sense data for a single host
whose command is being executed.
Current sense
Current sense is the data that is returned in response to a REQUEST SENSE command. It is modified
or updated in the following circumstances:
7 6 5 4 3 2 1 0
0 Descriptor Type (04h)
1 Additional Length (02h)
2–3 Reserved (0)
4 Mark EOM ILI Reserved (0)
7 6 5 4 3 2 1 0
0 Descriptor Type (80h)
1 Additional Length (02h)
2–3 Reserved (0)
4 Mark EOM ILI Reserved (0)
4
Drive Error Code
11
7 6 5 4 3 2 1 0
0 Descriptor Type (81h)
1 Additional Length (02h)
2–3 Reserved (0) CLN (1)
4 Reserved (0)