HP StorageWorks Command View SDM Installation and User Guide (T1086-96023, February 2005)

Command Line User Interface 145
Command Line User Interface
-q <value> <FruLocation> Set the Queue Full Threshold to <value>. For the VA 7400 and VA 7100
arrays, <value> must be in the range of 0 to Max Queue Threshold,
which can be determined using the armdsp -s command. If “0” is used, it
will set the Queue Full Threshold to its default value, which varies by
firmware revision.
For the VA 7110 and VA 7410 arrays, <value> must be in the range of 1
to Max Queue Threshold. There is no default value for these arrays.
The Queue Full Threshold determines the size of the queue used to store
host commands. When this value is reached, the array will return Queue
Full status to subsequent host requests.
Increasing the size of the queue may reduce the incidence of Queue Full
status, but it may also result in longer response times because a command
will have to sit in the queue longer before being serviced. If time-outs and
long response times are occurring, it may be necessary to reduce the size
of the queue.
The <FruLocation> value is supported on HP15 firmware and later
(VA7100/7400) and A000 or greater (VA7410/7110). On the VA
7410, it identifies the specific host port for which the Queue Full
Threshold will be set. For example, to set the value for host port 1 on
controller 2, enter M/C2.H1. On the VA 7100 and VA 7400 arrays, the
<FruLocation> value is ignored and the threshold is set for all ports.
-r {on | off | true | false} Change the apparent state of read cache on (true) or off (false). This
switch only changes the read cache setting presented to the operating
system and does not affect the operation of the array, which always has
read cache enabled. This switch is provided for operating system
interpretability.
-R [full | partial] Perform either a full or partial reset of the array. If no parameter is
supplied, a full reset is performed.
Full reset can be used to reset the array in environments where the Fibre
Channel Target Reset task management function is not possible. A full
reset should also be used when the array is in an unknown state. A full
reset includes memory tests.
Partial reset can be used to reset the array in environments where the
Fibre Channel Target Reset task management function is not possible. A
partial reset does not include memory tests.
-s {shut | start} Shutdown (shut) or restart (start) the array. A shutdown takes the array
offline, making all data on the array unavailable to the host. A restart
brings the array back online.