Digital Video Recorder User Manual 
 
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Chapter 13 RAID 
   
This chapter is applicable for DS-7300/8100/9000HUHI-F/N series DVR. 
13.1  Configuring Array 
Purpose 
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 DVR supports the disk array that is realized by software. You can enable the RAID function on 
your demand. 
   
The DS-7300/8100/9000HUHI-F/N series DVR support the RAID0, RAID1, RAID5, RAID6 and RAID 10 
array types.   
Before you start 
Please install 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. 
Introduction 
The DVR can store the data (such as record, picture, log information) in the HDD only after you 
have created the array or you have configured network HDD (refer to Chapter14.2 Managing 
Network HDD). Our device provides two ways for creating array, including one-touch configuration 
and manual configuration. The following flow chart shows the process of creating array.