Configuring an array, Introduction – HP Smart Array 6i Controller and 128MB BBWC User Manual
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9
Configuring an Array
In This Section
Introduction ....................................................................................................................................
Comparing the Utilities ................................................................................................................
Using ACU ...................................................................................................................................
Using ORCA ................................................................................................................................
Introduction
HP provides two utilities for manually configuring an array on a Smart Array
controller:
•
ACU—A versatile, browser-based utility that provides maximum control
over configuration parameters
•
ORCA—A simple ROM-based configuration utility that runs on all
operating systems
NOTE: To copy a particular array configuration to several other servers
on the same network, use ACR or the scripting capability of ACU. ACR
is provided in the SmartStart Scripting Toolkit, available on the HP
Whichever utility you use, the following limitations apply:
•
For the most efficient use of drive space, do not mix drives of different
capacities within the same array. The configuration utility treats all physical
drives in an array as if they have the same capacity as the smallest drive in
the array. The excess capacity of any larger drives is wasted because it is
unavailable for data storage.
•
The probability that an array will experience a drive failure increases with
the number of physical drives in the array. If you configure a logical drive
with RAID 5, keep the probability of failure low by using no more than 14
physical drives in the array.
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