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Command Specifications
a.
TST (task set type)
This field specifies the type of task set defined below.
Value
010b-111b
The IDD operates according to "000b". If other value is specified in this
field, the IDD reports a "CHECK CONDITION" status (ILLEGAL
REQUEST [=5] / Invalid parameter in list [=26-00]).
b. Queue algorithm qualifier
This parameter controls the execution order algorithm of a command issued
together with a SIMPLE QUEUE TAG message.
"0000": The IDD executes commands queued from each INIT in the order
"0001": The IDD executes queued commands by the method selected by
"1111": The IDD prohibits to order queued commands.
When other value is specified in this parameter, the IDD reports a CHECK
CONDITION status (ILLEGAL REQUEST [=5] / Invalid parameter in List
[=26-00]).
c.
GLTSD (global logging target save disable) (not supported)
This bit specifies whether or not to permit the saving treatment of peculiar
logging parameter within the IDD.
Since the IDD performs the saving treatment with itself algorithm regardless
of specified value in this bit, disregards the specification in this bit.
d. RLEC (report log exception condition) (not supported)
This bit controls operations in cases where the accumulated value log
parameter reaches the maximum value.
"1": The IDD reports a CHECK CONDITION status (UNIT ATTENTION
"0": The IDD executes the command which is issued next normally.
4-54
Table 4.23 TST
000b
Task set per logical unit for all initiators
001b
Task set per initiator per logical unit
Reserved
in which they were received. However, the command execution
order for the READ, READ EXTENDED and PRE-FETCH
commands may be changed.
the IDD. At this time, the INIT must verify the correctness of the
data through appropriate commands and QUEUE TAG messages.
[=6] / Log counter at maximum [5B-02]).
Description
C141-C012
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