Clare Controls 16-Channel NVR with PoE, Руководство пользователя

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Chapter 10: RAID
Network Video Recorder User Manual 125

Global Hot Spare: It is used as the hot spare for any array created in the
system.

Array Hot Spare: It is used as the hot spare for the specified array only.
(e.g., RAID 5)
14. Click OK to finish the settings.
Note: When the auto-rebuild function is enabled, the hot spare disk is
automatically used to rebuild the array when the virtual disk is in Degraded
status.
Rebuilding array
The working status of array includes Functional, Degraded, and Offline. By
viewing the array status, you can perform immediate and proper maintenance for
the disks to ensure high security and reliability of the data stored in the disk
array.
When there is no disk loss in the array, the working status of array changes to
Functional. When the number of lost disks has exceeded the limit, the working
status of array changes to Offline. In other conditions, the working status is
Degraded. If the virtual disk is in Degraded status, you can restore it to functional
by rebuilding the array.
Automatically rebuilding the 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.
Before you start
Enable the Auto-rebuild in the Firmware Settings interface
(Menu > HDD > RAID > Firmware) and ensure the hot spare disk has been
configured.
To automatically rebuild an array:
1. Enter the Array Settings interface (Menu > HDD > RAID > Array).
The status of the array is Disk Loss. If the hot spare disk is configured and
Auto-rebuild function is enabled, the hot spare disk is automatically used for
array rebuilding.