Adaptec 1420SA User Manual

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Chapter 5: Getting Started
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Choosing a RAID Level
Your HostRAID controller supports these RAID levels.
RAID 0 (Non-redundant Array)—Stripes data across multiple disk drives. Improved 
performance but no redundancy.
RAID 1 Array—Created from two disk drives where one disk drive is a mirror of the other (the 
same data is stored on each disk drive). Redundancy but reduced capacity.
RAID 10 Array—Built from two or more equal-sized RAID 1 arrays, stripes and mirrors data 
across multiple disk drives. Redundancy and improved performance.
Se
 for more information on RAID levels and use the table on 
 to see how many 
disk drives you must connect to your HostRAID controller to support the RAID level you 
want.
Choosing Installation Options
When you install your HostRAID controller, you can choose to create a bootable array and 
then install both operating system and controller driver on that array. Alternatively, you can 
complete a standard installation, where you install the controller driver on an existing 
operating system.
Note: 
Adaptec 1225SA controller does not support bootable devices, hence install this controller 
only on an existing operating system.
Basic Installation Steps
This section describes the installation process. Follow the steps for the installation option 
you’ve chosen.
Installing with an Operating System
You can install your HostRAID controller and the operating system using these steps:
1
Install and connect your controller and disk drives (see 
).
2
Set the boot controller (see 
3
Make the array bootable (see 
4
Install your operating system and the driver (see 
).
5
Install Adaptec Storage Manager and begin to manage your data storage (see 
).
Installing with an Operating System On a Bootable Disk Drive/Array
When you install your HostRAID controller, you can create a bootable disk drive or an array 
and then install both operating system and controller driver on that disk drive or array. 
Alternatively, you can perform the standard installation, and install the controller driver on an 
existing operating system