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How to add the new disk to original group.

Publication Date:  2012-09-24 Views:  36 Downloads:  0
Issue Description
A disk is faulty in T3000 RAID group, and there is no hot-backup disk in this RAID group. After changing new disk, the condition indicator is red. The new disk cannot be added to original RAID group.
Alarm Information
Null
Handling Process
Estimation 1: If the changing disk is faulty, change a new disk again, then system can add this disk to original RAID group.
Estimation 2: If the changing disk has RAID information, clean RAID information, then pull out and plug it.
Step 1: Log on MegaRAID storage management with “administrator”.
Step 2: Select “Logical” label to check RAID group condition. The new disk condition is “(Foreign)Unconfigured Bad”, which belongs to the condition of unconfigured. System will take it as “fault disk”.

Step 3: Right-click the new dish, then select “Change to Unconfigured Good”. The condition changes to “(Foreign)Unconfigured Good”. The disk turns to good.

Step 4: Select RAID card, then select “operations”->“Scan For Foreign Configuration” in toolbar to scan “Foreign” information.

Step 5 This time, “Foreign” information has been detected. Select “Clear” in pop-up dialog box and click “OK”.

Step 6: Check “Confirm” in pop-up dialog box, then click “Yes” to clean “Foreign” information.

Now, “Foreign” information has been cleaned successful. Check disk condition, which changes to “Unconfigured Good”.

Step 7: Pull out and plug the disk again. System can identify disk automatically and reconstruct RAID group. According to the size of disk, the reconstruction time is not same from 10 to 20 minutes. The fault disappeared after reconstructed.
Root Cause
Because the condition indicator is red, we judge this disk is faulty or has RAID information. How to added the new disk to original RAID group?
Suggestions
Null

END