Chassisname, Clearconfigurationwithdataloss, Licensekey, deletelicensekey – HP Linux Server Management Software User Manual
Page 45: Preferredpathmode, Readcache, writecache
Toolkit utilities 45
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.
ClearConfigurationWithDataLoss
This command is now deprecated.
The default value for this option is No. Clearing the configuration causes data loss because it deletes all
logical volumes and arrays 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.
PreferredPathMode
The setting that you select for this option determines how the preferred I/O path to a particular logical drive
is set for a redundant array controller that is in an active/active configuration.
Not all controllers support this feature, and controllers in an active/standby configuration disregard this
option.
•
Auto is the default setting for new configurations. In this case, the storage system automatically selects
the I/O path from the redundant controller to the logical drive and dynamically load balances all paths.
•
Manual enables you to assign the logical drive to a specific redundant controller. If you select this
setting, use the PreferredPath (on page
) command to specify the path.
If you are reconfiguring a controller and do not specify a setting for this option, the existing setting remains
unchanged.
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 write cache,
as described in the following table.
A "+" indicates that the specified cache ratio is allowed for that type of controller, while a "–" indicates that
the ratio is not allowed.