NEC Express 5800 Series User Manual page 69

The allowable cache ratios depend on the controller model and whether it has battery-backed write cache.
RebuildPriority, ExpandPriority
These options establish the priority for rebuild and expand functions. Rebuild has four possible values: Low,
Medium, MediumHigh, and High. MediumHigh is only available when Rapid Parity Initialization is enabled.
Expand has only three possible values: Low, Medium, and High.
These options are not required.
SurfaceScanDelay
Enter a number between 0 and 30 to specify the duration of the surface scan delay in seconds. This option is
not required. If you do not specify a value for this option, the delay remains unchanged. A value of 0 disables
the scan.
SurfaceScanDelayExtended
Enter a number between 0 and 300 to specify the duration of the surface scan delay in tenths of seconds.
This option is not required. If you do not specify a value for this option, the delay remains unchanged. A value
of 0 disables the scan.
If this parameter and SurfaceScanDelay are both in the input file, this parameter takes precedence.
SurfaceScanMode
This parameter specifies the Surface Scan Mode with the following values:

Idle—The delay interval is set with the normal values from SurfaceScanDelay or
SurfaceScanDelayExtended.

High—The surface scan enters a mode guaranteed to make progress despite the level of controller I/O.

Disabled—No mode is selected.
Video performance options
This option is not supported.
Array category
The Array category has the following options:

Array

ArrayR0

CachingArray

Drive

DriveType

OnlineSpareMode

OnlineSpare

SmartPath

SplitMirror
Array
Enter a letter or pair of letters to identify the array that is to be created or reconfigured, and observe these
additional limitations:
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