HP Array Configuration Utility User Guide (416146-001, January 2006)

Scripting in ACU 35
Controller
You must enter a value for this option because it identifies the controller that is to be configured.
• All—Configure all detected controllers in the system identically.
• Slot [N]—Configure the internal controller in slot number N.
• WWN [N]—Configure the external controller that has the World Wide Name N.
• SerialNumber [N]—Configure the shared storage controller that has serial number N.
• IOCabinet[N],IOBay[N],IOChassis[N],Slot[N],Cabinet[N],Cell[N]—Configure
the controller in the Integrity server that has the slot path information defined by this sequence of
identifiers.
ClearConfigurationWithDataLoss
The default value for this option is No. Clearing the configuration causes data loss because it deletes all
logical drives on the controller. If you clear a configuration, you can write commands later in the script file
to create a new configuration from the liberated drive capacity.
LicenseKey, DeleteLicenseKey
These options enable you to enter a 25-character license key to activate or uninstall some controller
features. Hyphens can be entered, but are not required.
ChassisName
Enter the user-defined character string that identifies the controller. Any of the following characters can be
used in the string:
a–z, A–Z, 0–9, !, @, #, *, (, ), ,, -, _, +, :, ., /, [space]
You do not need to use quotation marks around the string, but doing so allows the string to begin with a
space character. However, the string cannot end with a space character.
Currently, only shared-storage controllers such as the RA4x00, MSA1000, and Smart Array Cluster
Storage support the ChassisName option. The RA4x00 controller uses a 24-character string, while other
applicable controllers use a 20-character string.
ReadCache, WriteCache
Enter a number between 0 and 100 to specify the percentage of cache that is to be allocated to drive
reads or writes. The default value for both options is 50. The allowable cache ratios depend on the
controller model and whether it has battery-backed cache, as described in the table ("Allowable cache
ratios" on page 35).
Allowable cache ratios
NOTE: Y indicates that the specified cache ratio is allowed for that type of controller, while -- indicates that
the ratio is not allowed.
Read:write
ratio
RA4x00 with
16MB cache
RA4x00 with
48MB cache
All other controllers with
battery-backed cache
All other controllers
without battery-backed
cache
100:0 Y Y Y Y
90:10 Y Y -- --
80:20 Y Y -- --
75:25 -- -- Y --