User`s guide

Appendix D: Using the ACU for DOS ● 87
Array Definition Block Keywords
The array definition block always begins with the keyword Array and ends with the keyword
End. The other required array definition keywords are Drives and Type.
Array definition keywords and descriptions are listed in this table.
Array Keyword
Array is a required keyword, indicating the start of an array definition block. The syntax is
Array=<label> , where label is an optional alphanumeric string.
For example:
Array=MyData
Drives Keyword
Drives is a required keyword, specifying the devices to use in creating the array. There is no
default value.
A disk drive is identified by its channel number, ID (target), and LUN, separated by colons; for
example,
0:0:0 or 0:1:0 . Separate multiple disk drive identifiers with commas.
Prior to creating any new arrays, the ACU initializes any drives specified by the
Drives
keyword. If a disk drive is specified in more than one array definition block in a script, it is
initialized only once.
Caution:
Any disk drive specified within the script file is initialized, which destroys any
data on that disk drive.
For example:
Drives=0:0:0
Drives=0:0:0,0:1:0,0:2:0
Keyword Required ? Description
Array Yes Indicates the start of an array definition block. No default. See page 87.
Drives Yes Specifies the disk drives used in creating the array. No default. See
page 87.
End Yes
Indicates the end of an array definition block. No default. See page 88.
HotspareDrives No Specifies hot spares to assign to the array. No default. See page 88.
InitializeAll No Indicates whether to initialize all the drives connected to the
controller. Default is No. See page 88.
Method Yes Indicates the method (Build/Verify, Clear, or Quick Init) to use when
creating a redundant array. Default is Build. See page 89.
ReadCache No Indicates whether read caching is enabled for this array. Default is
Yes. See page 89.
Size No Specifies the size of the array. Default is Maximum. See page 89.
StripeSize No
Specifies size of contiguous I/O, in bytes. Default is 256 . See page 89.
Type Yes Indicates the type of array to create. No default See page 90.
Wait No Indicates whether the ACU should wait for the new array’s Build/
Verify or Clear to complete before continuing. Default is Yes. See
page 90.
WriteCache No Indicates whether write caching is enabled for this array. Default is
Yes. See page 90.
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