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SECTION 12: RAID ARRAYS
SECTION 12
RAID Arrays
RAID (redundant array of independent disks) is a storage technology that combines multiple disk drive components into a logical
unit. A RAID array stores data over multiple hard disk drives to provide enough redundancy so that data can be recovered if one disk
fails. The NVR supports RAID types 0, 1, 5, 6 and 10. When a RAID array is created, all data on the HDDs is lost, and the system must
be restarted.
The NVR provides two ways for creating the virtual disk, including one-touch configuration, for creating a RAID 5 array, and manual
configuration, where you can select a different RAID level and specify the HDD configuration.
NOTE
•
The NVR supports creating at most 8 virtual disks.
•
At least 2 HDDs must be installed for RAID 0.
•
At least 2 HDDs must be installed for RAID 1.
•
At least 3 HDDs must be installed for RAID 5. If you install 4 HDDs or above for one-touch configuration, a hot
spare disk will be set as default.
•
At least 4 HDDs must be installed for RAID 6.
•
4/6/8 HDDs must be installed for RAID 10.
•
By default, one-touch configuration creates one array and one virtual disk. If the capacity of the array created by
one-touch configuration is larger than 16TB, two arrays and two virtual disks will be created.
•
By default, one-touch configuration adopts “foreground” initialization (recommended) to initialize the virtual
disk. By using foreground initialization, the virtual disk can be used only after the initialization is complete.
12.1 Create a RAID array
1. With a system without a RAID array, or with HDDs installed in the chassis that are not configured for RAID,open the
Menu |
HDD | General
display. Verify that the drives you want to configure for RAID have “
Normal
” or “
Sleeping
” status.
2. Click the
Advanced
tab, check the box to
Enable RAID
, and then click the
Apply
button at the bottom of the menu.
Summary of Contents for ALI-NVR71128R
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