HP ProLiant DL280 Configuring Arrays on HP Smart Array Controllers Reference G - Page 55

Optimizing controller performance for video, Creating a logical drive, Syntax, Example commands

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=> ctrl slot=4 add lk=9876543210222224444466666 Optimizing controller performance for video On some controller models, you can optimize the controller performance for video. To use this features on an HP Smart Array G6 or G7 controller, a registered SAAP ("About SAAP" on page 8) license key is required. Syntax: modify dpo=enable elevatorsort=disable irp=enable queuedepth=automatic mnpd=60 where the target is any valid controller. The queuedepth parameter can also have a numerical value from 2 to 32, and the mnpd parameter can have any value from 0 (disabled) to 60. To disable the video performance optimization feature, reverse the disable and enable values noted above, set the queue depth to automatic, and set mnpd to 0, as in the second example command. Example commands: => ctrl slot=5 modify dpo=enable elevatorsort=disable irp=enable queuedepth=16 mnpd=25 => ctrl slot=3 modify dpo=disable elevatorsort=enable irp=disable queuedepth=automatic mnpd=0 Creating a logical drive Syntax: create type=ld [parameter=value] is usually a controller, but it can be an array if you are creating an additional logical drive on an existing array. If you want to create a logical drive on a group of physical drives that are not yet assigned to an array, you do not have to build the array first. In the CLI, unlike in the GUI, the array is created automatically at the same time as the logical drive. The standard parameters used when creating a logical drive are described in the following table. If you do not specify a particular parameter, the CLI uses the appropriate default value. Parameter drives raid numberparityg roups ss Acceptable values all|allunassigned 0|1|1adm|1+0|1+0adm|5|50|6|60|? 2|# 8|16|32|64|128|256|512|1024|default |? Comments The default setting is all. The default setting is the highest RAID level that the controller model and number of drives can support, except 50 or 60 (which must be specified deliberately). The default value is 2. Units are KB.* The default setting depends on the RAID level. HP Array Configuration Utility 55

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HP Array Configuration Utility
55
=> ctrl slot=4 add lk=9876543210222224444466666
Optimizing controller performance for video
On some controller models, you can optimize the controller performance for video.
To use this features on an HP Smart Array G6 or G7 controller, a registered SAAP ("
About SAAP
" on page
8
) license key is required.
Syntax:
<target> modify dpo=enable elevatorsort=disable irp=enable
queuedepth=automatic mnpd=60
where the target is any valid controller.
The
queuedepth
parameter can also have a numerical value from 2 to 32, and the
mnpd
parameter can
have any value from 0 (disabled) to 60.
To disable the video performance optimization feature, reverse the disable and enable values noted above,
set the queue depth to automatic, and set
mnpd
to 0, as in the second example command.
Example commands:
=> ctrl slot=5 modify dpo=enable elevatorsort=disable irp=enable
queuedepth=16 mnpd=25
=> ctrl slot=3 modify dpo=disable elevatorsort=enable irp=disable
queuedepth=automatic mnpd=0
Creating a logical drive
Syntax:
<target> create type=ld [parameter=value]
<target>
is usually a controller, but it can be an array if you are creating an additional logical drive on an
existing array.
If you want to create a logical drive on a group of physical drives that are not yet assigned to an array, you
do not have to build the array first. In the CLI, unlike in the GUI, the array is created automatically at the same
time as the logical drive.
The standard parameters used when creating a logical drive are described in the following table. If you do
not specify a particular parameter, the CLI uses the appropriate default value.
Parameter
Acceptable values
Comments
drives
[#:]#:#,[#:]#:#,...|[#:]#:#–[#:]#:#
|all|allunassigned
The default setting is
all.
raid
0|1|1adm|1+0|1+0adm|5|50|6|60|?
The default setting is the highest RAID
level that the controller model and
number of drives can support, except
50 or 60 (which must be specified
deliberately).
numberparityg
roups
2|#
The default value is 2.
ss
8|16|32|64|128|256|512|1024|default
|?
Units are KB.*
The default setting depends on the
RAID level.