Datasheet

A-7
Adaptec RAID Configuration Utility
Assigning Array Properties
The ACU can be used to assign array properties only prior to array
creation. (After the array is created, you need to use Adaptec
Storage Manager.) To assign properties to the new array:
1 In the Array Properties menu, select an array type and then
press Enter. The display shows only the array types available
for the number of drives selected.
The maximum number of drives allowed and minimum
number of drives required depends on the RAID level, as
described in the table below.
2 Type in an optional label for the array and then press Enter.
3 Enter the desired array size. The maximum array size available
based on the segments you selected is displayed automatically.
If you want to designate a different array size, type the desired
array size and select MB (megabytes), GB (gigabytes), or TB
(terabytes) from the drop-down list. If the available space from
the selected segments is greater than the size you specify, the
remaining space is available for use in other arrays.
4 Select the desired stripe size. The allowable stripe sizes are 16,
32, and 64 KB (the default). The default stripe size provides the
best overall performance in most network environments.
5
Specify whether you want to enable read and write caching for the
array.When
Enabled (the default), caching is enabled, providing
maximum performance. When
Disabled , caching is disabled.
Caution: When caching is Enabled, there is a potential for
data loss or corruption during a power failure.
Caching should usually be enabled to optimize performance,
unless your data is highly sensitive, or unless your application
performs completely random reads, which is unlikely.
RAID Level Maximum Drives Allowed Minimum Drives Required
Simple volume 4 1
RAID 0 4 2
RAID 1 2 2
RAID 5 4 3
RAID 10 4 4
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