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Knowledge Base

Software RAID of NVR6128 is degrade

Publication Date:  2015-01-06  |   Views:  421  |   Downloads:  0  |   Author:  y00535108  |   Document ID:  EKB1000063235


Issue Description

It shows that the software RAID is degraded on the NVR Management Page.
Product Name: NVR6128 and NVR6128G2

Alarm Information

RAID is degraded.

Handling Process

1. Upload the detective script hd_tools-1.6.tar.bz2 to the NVR server by sftp.
You could get the script here,

2. Decompress the script with the command below,
     tar -xf hd_tools-1.6.tar.bz2

3. Enter the hd_tool directory, and run the command below
Then it will give the result like below. We can find that the Score of slot 9 is very slow. The critical point is 80. And the current value is much lower than 80. So we can conclude that this disk is faulty and need to be replaced.

Root Cause

HDD is faulty, so RAID will be the status of degraded.


Use the detective script to find the faulty HDD and replace it.


When we find that software raid on the Management Page is degraded, we need to use the script to confim.