Chapter 5: RAID Monitoring and Maintenance

Array Offline

When a disk drive fails on a non-fault-tolerant array (RAID 0) for any reason, the Array goes Offline. The array cannot read or write data. All of the data on the array will be lost unless the failed drive is restored to operation.

A fault-tolerant array (RAID 1, 0+1 and 5) will go Offline if two disk drives fail.

An Array Offline icon displays in Tree View and the alarm (if enabled) beeps quickly to call your attention to the condition.

Figure 81. An Array in Offline condition highlighted in Tree View (left) and shown in red in Information View (right).

Your first action is to identify which disk drive has failed. Follow the procedure described for Array Critical above.

When you have identified the failed drive, check its connections and run the drive manufacturer's diagnostic program in an effort to restore the drive to operation.

There is no Rebuild function for a non-fault-tolerant array.

Delete Array

To delete an array:

1.Right-click on the icon of the Array you want to delete.

2.Select Delete from the popup menu.

3.Click OK in the confirmation dialog box.

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Promise Technology Version 4.4 user manual Array Offline, Delete Array