User Manual
DS-73xxHUI-K4, DS-73xxHQI-K4, DS-90xxHUI-K8 DVR User Manual 
UM DS-73xxHUI-K4 DS-73xxHQI-K4 DS-90xxHUI-K8 092017NA  167 
If the number of HDDs you select is not compatible with the requirement 
of the RAID level, the error message box will pop up. 
Figure 226, Error Message Box 
5.  Click Array tab to view the successfully created array. 
Figure 227, Array Settings Interface 
12.1.4  Rebuilding Array 
Purpose 
The working status of an array includes Functional, Degraded, and Offline. By 
viewing the array status, you can take immediate and proper maintenance for 
the disks so as to ensure the 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 will change 
to Functional; if the number of lost disks has exceeded the limit, the working 
status of 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. 










