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A RAID Cannot Be Rebuilt After "PD Missing" Is Displayed

Publication Date:  2015-06-18 Views:  85 Downloads:  0
Issue Description
Hardware configuration:
An E6000 configured with one redundant array of independent disks (RAID) controller card (1078)

Symptom:

The E6000 uses the LSISAS1078 controller card to configure two hard disks with RAID 1 properties. After one hard disk fails and is replaced with a new one, data cannot be synchronized to the new hard disk, and the new hard disk cannot be set to be the hot spare disk, as shown in Figure 1.

Figure 1 Hard disk failed to be set to a hot spare disk

Handling Process
1.  In the Logical View window, FOREIGN is displayed for the new hard disk, as shown in Figure 2. If a hard disk already has RAID configuration, the hard disk is identified as FOREIGN by the LSISAS1078 controller card.

Figure 2 Logical View



2.  After the existing RAID configuration is deleted from the new hard disk, the hard disk can be set to be the global hot spare disk and enters the synchronization state.

Root Cause
RAID configuration exists on the new hard disk before replacement. As a result, data cannot be synchronized to the new hard disk, and the hard disk cannot be set to be the hot spare disk.

Solution
When "PD Missing" is displayed and a hard disk needs to be replaced, check whether the new hard disk already has RAID configuration. If yes, delete the RAID configuration. Otherwise, data cannot be synchronized to the new hard disk.

Suggestions
If "PD Missing" is displayed and a hard disk needs to be replaced, check whether the new hard disk already has RAID configuration. If yes, delete the RAID configuration. Otherwise, data cannot be synchronized to the new hard disk.

END