NEC Express 5800 Series User Manual page 70


In Configure mode, SSA creates a new array. The value that you specify for the array option must be the
next available letter or pair of letters in the sequence, according to the number of existing arrays on the
controller. AA follows Z, and BA follows AZ.

In Reconfigure mode, SSA can either create a new array or reconfigure an existing array. In this case,
the value that you specify can identify an existing array, or it can correspond to the next available array
letter or pair of letters in the existing configuration.
ArrayR0
The option ArrayR0 creates a single drive array with a RAID0 volume for each argument. When ArrayR0 is
specified, DriveType is the only other valid command in the array section.
Command options:

X:Y,...: Port: Id for controllers that use Port/Id drive numbering schemes. For Box/Bay numbering
schemes, use Box:Bay.

X:Y:Z,...: Port:Box:Bay for SAS controllers

N: N number of drives will be used

*: Use all unconfigured drives
CachingArray
This option specifies the Caching Array ID.

In Configure mode, SSA creates a new caching array. The value that you specify for the array option
must be the next available array letter in the existing configuration. AA follows Z, and BA follows AZ.

In Reconfigure mode, the array letter identifies an existing array, or it can identify the next available
array letter in the existing configuration to create a new array.
Drive
You can use this option in the input file to specify new physical drives for the array. Use this option to build a
new array or to expand, shrink, or move an existing array.
Observe the following guidelines:

If you are expanding an array, each drive that you add must have a capacity no less than that of the
smallest drive already in the array. The added drives and the existing drives in the array must all be the
same type (for example, SAS or SATA).

If you are moving or shrinking an array, SSA Scripting compares the current drives with the requested
drives, and then determines whether you are moving or shrinking. Shrinking or moving an array is
supported only in Custom method mode.

If the value of the ClearConfigurationWithDataLoss
remove drives from an array.
Custom method mode—To specify the drives to be used in the array (different arrays on the same controller
can use different methods), choose one of the following methods:

To specify individual drives, use the applicable convention (port:ID, box:bay, or port:box:bay).

To specify only the number of drives to use (not which specific drive IDs to use), enter that number as
the value for this option. For example, if you enter drive=3, SSA uses the first three available drives to
build or expand the array that you define in the remainder of the script. SSA automatically determines
which drives are suitable to use.

To use all available drives, enter an asterisk as the value for this option. An array that is configured
using this method cannot have a spare.
option is Yes, you can use the Drive option to
SSA Scripting 70