Controller, Cachestate, Clearconfigurationwithdataloss – HP Smart Storage Administrator User Manual
Page 78: Dpoenable, Drivewritecache, Elevatorsortenable
Operations 78
Controller
You must enter a value for this option because it identifies the controller that you want to configure:
•
All—Configure all detected internal and external controllers in the system.
•
Slot N[:N]—Configure the internal controller in slot number N. External controllers can be identified
by appending the Port Number.
•
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.
CacheState
This option enables you to flush the cache or disable flushing of the cache. Values are FlushEnable and
FlushDisable.
You can use this option to prevent stale cache issues.
ClearConfigurationWithDataLoss
Clearing the configuration results in 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.
The values for this option are as follows:
•
Yes: The configuration will be cleared. All arrays and logical drives on the controller will be deleted.
This option will fail if there are mounted logical volumes in the OS.
•
Forced: The configuration will be cleared. All arrays and logical drives on the controller will be
deleted.
•
No: The configuration will not be cleared. This is the default option.
DPOEnable
The DPOEnable option controls the behavior of the controller Degraded Mode Performance Optimization.
This option is used to tune controller performance for video applications and requires the installation of a
valid license key. Command options are Enable or Disable.
DriveWriteCache
This option controls the settings of the write cache for all connected physical disks. For this option, the setting
is Enable or Disable. Not all physical disks or controllers support this option.
ElevatorSortEnable
The ElevatorSortEnable option controls the behavior of the controller cache write Elevator sort algorithm. This
option is used to tune controller performance for video applications and requires the installation of a valid
license key. Command options are Enable or Disable.