Contec VPC-3100-G Series, Справочное руководство

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Hardware RAID Setup
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VPC-3100-G Series Reference Manual
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3. Mirror Card Operation
You can use the mirror card LEDs to monitor the status of the existing storages in the mirroring
configuration. For details on the mirror card LEDs, see
“LED Status (page89) ”.
1. Operation Flow
During hardware RAID operation, the following statuses exist, and the system is in one of them.
Mirror card status
Status Explanation
Normal The system is performing regular operation and the two drives are functioning
normally.
Reading is performed from one drive, and the same data is written to both
drives.
Faulty One drive has malfunctioned. The system remains capable of operation.
Two drives have malfunctioned. The system has been deactivated.
Replacement Replace the malfunction drive with a good drive.
Rebuilding The system is capable of operation while one drive is being rebuilt.
If the system is restarted during a rebuild, the system resumes from the last
block that was completed Drive replacement can be performed in the following
two modes.
Hot-plug
Replace a drive during operation of the RAID card (with the power on). Even if
the replaced drive is identical to the one prior to replacement, the rebuild is
started.
Cold-plug
Replace a drive while the RAID card is deactivated (with the power off). If a new
drive is not inserted, the rebuild is not performed.