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5.4 Checking Operation after Installation and Preparing the HDD for Use
C141-E235 5-15
(4) Control mode parameters
The following parameters are used to control the tagged queuing and error logging.
a. Control mode parameters
Parameter Default value
• Queue algorithm modifier 0 (Execution
sequence of
read/write
commands is
optimized.)
• QErr: Resume or abort remaining suspended
commands after sense pending state
0 (command is
resumed)
• DQue: Disabling tagged command queuing 0 (enabled)
(5) Fibre channel control parameters
Refer to Subsection 4.1.4 "MODE SELECT (15)" of the Fibre Channel Interface Specifications for
details.
Parameter Default value
• DTOLI (Disable Target Original Loop Initialization) 0 (An Initializing LIP is issued
when the HDD enters the
Loop.)
• DTIPE (Disable Target Initiated Port Enable) 0 (The HDD does not have the
Loop Port Enable primitive, so
it enters the loop port.)
• ALWLI (Allow Login Without Loop Initialization) 0 (The HDD carries out
confirmation of the address in
the Loop Initialization
process.)
• RHA (Require Hard Address) 0 (In the Loop Initialization
process, try fixing a soft
address.)
• DLM (Disable Loop Master) 0 (The HDD itself is permitted
to become the Loop Master.)
• DDIS (Disable DIScovery) 0 (Before the INIT restarts
task processing, it must wait
for Address Discovery or
Port Discovery.)
• PLPB (Prevent Loop Port Bypass) 0 (Receiving Loop Port bypass
(LBP)/Loop Port Enable(LPE)
Primitive, it controls Port
Bypass circuit according to the
received Primitive.)
• DTFD (Disable Target Fabric Discovery) 0 (Fabric connection is
enabled.)
Note:
It is prohibited that "1" is specified in DTIPE and PLPB simultaneously.
If DTIPE=PLPB=1 is specified, it responds with CHECK CONDITION (ILLEGAL
REQUEST, VALID FIELD IN THE PARAMETER LIST.)