3DM2™ Online Help

Maintaining Units
3ware RAID controllers include a number of features in the firmware that help maintain the integrity of your drives, check for errors, repair bad sectors, and rebuild units when drives degrade. In addition, 3ware Disk Manager 2 (3DM2) provides tools to let you check unit and drive status, and manually start background maintenance tasks.

| Mac User Note: The 3ware BIOS Manager (3BM) tool is not available for Mac OS X users. Mac users need to use the 3DM2 tool.

3DM2 also lets you review alarms and errors and schedule background maintenance tasks. On Windows systems, the WinAVAlarm utility monitors the controller and will display a message window and give an audible alarm when events occur at or above the threshold you select for it.
Details about these features are described in this section, which is organized into the following topics:

| Checking Unit and Drive Status

| Viewing a List of Drives

| Enclosure Drive LED Status Indicators

| Unit Statuses

| Drive Statuses

| About Degraded Units

| About Inoperable Units

| Locating a Drive by Blinking Its LED

| Alarms, Errors, and Other Events

| Background Tasks

| Scheduling Background Tasks

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