Adaptec 2074700-R User Guide - Page 24

Getting Started - raid drivers

Page 24 highlights

Getting Started Getting Started 2 2.1 In order to setup the ICP RAID controller, follow the instructions in the sections below to: • Determine your RAID level and array configuration • Create a RAID driver installation diskette • Install the controller After completing these steps, refer Chapter 3 for quick installation instructions. For more detailed instructions refer to the other installation chapters (Chapter 4 through Chapter 9). Determine the RAID Configuration Begin the installation by completing the worksheet in Table 2-1 to determine the RAID level, the number of disk drives, and the disk drive size for your system. Refer to Section 1.3, RAID Levels for more information about RAID levels and to determine the optimum RAID level solution for your needs. 1. In column 1 of Table 2-1, select a RAID level. 2. In column 2, note the number of disk drives supported for the RAID level you selected. 3. In column 3, record the number of disk drives you will use for the host drive. 4. In column 4, record the capacity, in megabytes (MB), that you will need on each physical drive. You will enter this value as the "Used Capacity per Drive" when you are creating the host drive. Based on the physical drive capacity value and the number of disk drives you will use, the RAID configuration software will calculate the total host drive size for your selected RAID level. The capacity of the smallest drive in the initial RAID array configuration becomes the maximum capacity that the RAID configuration software can use for each hard disk in the host drive. This becomes important when you configure an array with hard disks of potentially varying sizes and you want to ensure that future drives added to the disk array will fit in the array (for example, for replacement purposes). Should a new drive have less than the physical drive capacity used for each disk in the existing disk array, the RAID configuration software could not accept the new drive. 24 Software Installation and User's Guide

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24
Software Installation and User’s Guide
Getting Started
Getting Started
2
In order to setup the ICP RAID controller, follow the instructions in the sections below to:
Determine your RAID level and array configuration
Create a RAID driver installation diskette
Install the controller
After completing these steps, refer
Chapter 3
for quick installation instructions. For more
detailed instructions refer to the other installation chapters (
Chapter 4
through
Chapter 9
).
2.1
Determine the RAID Configuration
Begin the installation by completing the worksheet in
Table 2-1
to determine the RAID
level, the number of disk drives, and the disk drive size for your system. Refer to
Section
1.3,
RAID Levels
for more information about RAID levels and to determine the optimum
RAID level solution for your needs.
1.
In column 1 of
Table 2-1
, select a RAID level.
2.
In column 2, note the number of disk drives supported for the RAID level you
selected.
3.
In column 3, record the number of disk drives you will use for the host drive.
4.
In column 4, record the capacity, in megabytes (MB), that you will need on each
physical drive.
You will enter this value as the “Used Capacity per Drive” when you are creating the
host drive. Based on the physical drive capacity value and the number of disk drives
you will use, the RAID configuration software will calculate the total host drive size
for your selected RAID level.
The capacity of the smallest drive in the initial RAID array configuration becomes the
maximum capacity that the RAID configuration software can use for each hard disk in the
host drive. This becomes important when you configure an array with hard disks of
potentially varying sizes and you want to ensure that future drives added to the disk array
will fit in the array (for example, for replacement purposes). Should a new drive have less
than the physical drive capacity used for each disk in the existing disk array, the RAID
configuration software could not accept the new drive.