User Manual

UM DS-90xxHUHI-F8/N User Manual 041717NA 124
18. RAID Setup
18.1. Configuring Array
RAID (redundant array of independent disks) is a storage technology that combines multiple disk drive components
into a logical unit. A RAID setup stores data over multiple hard disk drives to provide enough redundancy so that
data can be recovered if one disk fails. Data is distributed across the drives in one of several ways called “RAID
levels,” depending on what level of redundancy and performance is required.
The NVR supports software-based disk array. You can enable the RAID function at your demand.
NOTE: DS-73xxHUHI-F4/N Series DVRs support RAID 0, RAID 1, RAID 5,
RAID 6, and RAID 10 array types.
18.1.1. Before You Start
I
nstall the HDD(s) properly and it is recommended to use the same enterprise-level HDDs
(including model and capacity) for array creation and configuration so as to maintain reliable and
stable running of the disks.
18.1.2. Introduction
The NVR can store the data (such as record, picture, log information) in the HDD only after you
have created the array or you have configured a network HDD (refer to ChapterError! Reference
source not found. Error! Reference source not found.). Our device provides two ways for
creating an array, including one-touch configuration and manual configuration. The following flow
chart shows the process of creating an array.
Figure 198 RAID Working Flow