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4. Click on the "OK" button to create an array.
5. You can click on the "Array" tab to view the successfully created array.
NOTE:
- If you choose RAID 0, at least 2 HDDs must be installed.
- If you choose RAID 1, 2 HDDs need to be con
fi
gured for RAID 1.
- If you choose RAID 5, at least 3 HDDs must be installed.
- If you choose RAID 6, at least 4 HDDs must be installed.
- If you choose RAID 10, the number of HDDs installed should be even in the range of 4 to 16.
- If the number of HDDs you select is not compatible with the requirement of the RAID level, an error message
box will appear.
14.3. Rebuilding an Array
The working status of the array includes "Functional", "Degraded" and "Offline". By viewing the array status, you
can take immediate and proper maintenance for the disks to ensure the high security and reliability of the data
stored on the disk array.
If there is no disk loss in the array, the working status of the array will change to "Functional". If the number of
lost disks has exceeded the limit, the working status of the array will change to "Offline". In other conditions, the
working status is "Degraded".
When the virtual disk is in "Degraded" status, you can restore it to "Functional" by array rebuilding.
Before you start:
Please make sure the hot spare disk is configured.
Steps:
1. Enter the Physical Disk Settings interface to con
fi
gure the hot spare disk.
2. Select a disk and click the “Edit” button to set it as the hot spare disk.
NOTE: Only global hot spare mode is supported.
14.3.1. Automatically Rebuilding an Array
When the virtual disk is in "Degraded" status, the device can start rebuilding the array automatically with the hot
spare disk to ensure the high security and reliability of the data.
Steps:
1. Enter the Array Settings interface: Menu> HDD> RAID> Array
The status of the array is "Degraded". Because the hot spare disk is configured, the system will automatically
start rebuilding it.
NOTE:
If there is no hot spare disk after rebuilding, it is recommended to install a HDD into the device and set is as a hot
spare disk to ensure the high security and reliability of the array.
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