Troubleshooting A Raid Problem; Offline Array; Degraded Array; Array Degraded Status - American Dynamics Intellex Intellex Ultra Installation And Configuration Manual

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5 Click Save E-mail Settings button.

Troubleshooting a RAID Problem

Caution
Prompt action is needed when the array status becomes degraded. Any new drive failure results in
complete loss of stored data.
The RAID controller sets the array to degraded any time there is a read or write failure when
accessing a drive. Causes could be:
• a failing disk drive
• a defective cable
• a defective RAID controller
• a problem with a system component like the power supply or motherboard
Use the following guidelines to diagnose a degraded array:

Offline Array

An array status is offline when it is not possible for the RAID controller to store or retrieve data.
Usually the data stored is lost and you must rebuild the array. To find out how to recover any
available data, click the 3DM 2 icon on your Windows desktop and go to Help>3DM 2 Online Help.

Degraded Array

A degraded array is the result of one hard drive falling out of the RAID 5, 4-disk array.
• Loss of 2 or more drives causes the array to go offline and data is completely lost.
• A degraded array appears as Critical on the 3Ware 9500S-4LP Bios screen or in the 3DM2
utility in Windows.
Possible Causes:
• An array can become degraded when a hard drive fails, has multiple write errors, or becomes
disconnected from the array for any reason.
• A faulty SATA cable, 3Ware RAID card, motherboard, or power supply.
In case of a degraded array with only one degraded hard drive, the Intellex Ultra still functions,
including recording/playback, while the array rebuilds.

Array Degraded Status

1 Exit the Intellex application and go to the Windows desktop.
2 At the Windows desktop, click Start > Programs > 3ware > 3DM2 > 3DM 2 Web Interface.
3 Go to Login, choose login as Administrator, and type the password 3ware.
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RAID