Appendix C: Using the ARC Utility ● 71

●The ACU allows you to use drives of different sizes in a RAID 1 or RAID 0. However, during a build operation, only the smaller drive can be selected as the source drive.

●When migrating from single volume to RAID 0, migrating from a larger drive to a smaller drive is allowed. However, the destination drive must be at least half the capacity of the source drive.

●It is not recommend that you migrate or build an array on Windows dynamic disks (volumes), as it will result in data loss.

5When you are finished, press Done.

Managing Arrays

Select the Manage Arrays option to perform these tasks:

●Rebuilding Arrays (next section)

●Viewing Array Properties on page 71

●Deleting Arrays on page 72

●Enabling/Disabling Write Cache on page 72

Rebuilding Arrays

Note: Rebuilding applies to Fault Tolerant arrays (RAID 1) only.

By replacing a failed drive of a RAID 1 array with a new drive, you can rebuild to get the array to Optimal status and assume fault tolerance. You can perform a rebuild in the following ways:

Note: If no spare exists and a hard disk drive fails, you need to create a spare before you can rebuild an array. See Adding/Deleting Hot Spares on page 72 before continuing your rebuild.

●System Shutdown Rebuild

You can power off the computer and replace the failed drive with a new one (of equal or greater capacity). When the system is booted, you can assign the new drive as a spare, and this will start the Rebuild task. All the data from the good drive is copied to the new one, and the original RAID 1 array is recreated.

●Manual Rebuild

a From the Main Menu, select Manage Arrays. From the List of Arrays, select the array you want to rebuild.

b Press Ctrl+R to rebuild.

Viewing Array Properties

To view the properties of an existing array:

1From the ACU menu, select Manage Arrays.

2From the List of Arrays dialog box, select the array you want to view, then press Enter.

The Array Properties dialog box appears, showing detailed information on the array. The physical disks associated with the array are displayed here.

3Press Esc to return to the previous menu.

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Adaptec 58300, 44300, 48300, 1220SA, 1420SA, 1225SA, 1430SA manual Managing Arrays, Rebuilding Arrays, Viewing Array Properties
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1430SA, 1225SA, 1420SA, 1220SA, 48300 specifications

Adaptec, a prominent name in the world of storage solutions, offers a diverse array of RAID controller cards aimed at enhancing data storage and management in both consumer and enterprise markets. Among its acclaimed products are the Adaptec 1220SA, 1430SA, 44300, 1225SA, and 1420SA. These cards ensure increased data protection, improved performance, and greater scalability.

The Adaptec 1220SA is a robust SATA RAID controller designed for small to medium-sized businesses. It supports RAID levels 0, 1, 1E, 5, and 10, providing flexibility for users to optimize data redundancy and performance. With the capability of handling up to four SATA drives, it guarantees an efficient and reliable setup while minimizing potential data loss. The controller also features an intuitive web-based management interface, making it easier to administer and configure.

The Adaptec 1430SA extends similar functionality with enhanced features. It is designed to accommodate up to eight SATA drives and supports the latest 3 Gbps SATA technology. This model includes optional battery backup for preserving critical data during unexpected power outages, ensuring that users maintain data integrity and protection at all times.

In the enterprise domain, the Adaptec 44300 shines as a high-performance RAID controller. It offers support for 12 SATA drives, which allows for expansive storage scalability, crucial for data-intensive applications. The advanced RAID features include support for RAID 6, providing dual parity data protection. The controller is built with a powerful processor and memory, allowing for faster data processing and enhanced throughput.

The Adaptec 1225SA is another noteworthy model. Designed for entry-level RAID applications, it offers a balanced combination of performance and reliability. Supporting up to four SATA drives, the 1225SA is particularly well-suited for environments where uptime is critical, delivering functionalities such as hot-swapping. This feature allows users to replace failed drives without shutting down the system, significantly reducing downtime.

Lastly, the Adaptec 1420SA caters to users who require a cost-effective but reliable storage solution. With support for RAID 0, 1, and JBOD, it is a versatile option for enthusiasts and small businesses. The controller can manage up to two SATA drives, making it ideal for basic applications where simplicity and efficiency are paramount.

Collectively, these Adaptec controllers showcase cutting-edge RAID technology and storage management features, reinforcing their position as reliable options for users ranging from home users to enterprise-level organizations seeking optimal data storage solutions.
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