Users Guide

Related concepts

Create Virtual Disk Express Wizard

Enabling The Controller Alarm

Does my controller support this feature? See Supported Features.

To enable the alarm on the controller, select the Enable Alarm task. When enabled, the alarm sounds in the event of a device failure.

Related concepts

Using Alarms To Detect Failures

Disabling The Controller Alarm

Does my controller support this feature? Supported Features.

Select the Disable Alarm task to disable the alarm on the controller. When disabled, the alarm does not sound in the event of a device

failure.

Turning Off The Controller Alarm

Does my controller support this feature? See Supported Features.

Select the Quiet Alarm task to turn off the controller alarm. However, the controller alarm remains enabled for future device failure.

Testing The Controller Alarm

Does my controller support this feature? See Supported Features.

Select the Test Alarm task to test whether the controller alarm is functional. The alarm sounds for about 2 seconds.

Setting The Rebuild Rate

Does my controller support this feature? See Supported Features.

The Set Rebuild Rate task allows you to change the rebuild rate for a controller.

During a rebuild, the complete contents of a physical disk are reconstructed. The rebuild rate, configurable between 0% and 100%,

represents the percentage of the system resources dedicated for rebuilding failed physical disks. At 0%, the rebuild has the lowest priority

for the controller, takes the maximum time to complete, and is the setting with the least impact to system performance. A rebuild rate of

0% does not mean that the rebuild is stopped or paused.

At 100%, the rebuild is the highest priority for the controller, minimizes the rebuild time, and is the setting with the most impact to system

performance.

On the PERC controllers, the controller firmware also uses the rebuild rate setting to control the system resource allocation for the

following tasks:

• Performing A Check Consistency

• Background Initialization. See Cancelling Background Initialization

• Full Initialization. A BIOS setting determines whether a full or fast initialization occurs. See Format, Initialize, Slow And Fast Initialize

• Reconfigure. See Virtual Disk Task: Reconfigure (Step 1 of 3)

Related concepts

Rebuilding Redundant Information

To Change The Rebuild Rate

To locate Set Rebuild Rate In Storage Management

Controllers