How to use N+1 hot spare in NVR
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How to rebuild RAID5 when degraded
Hikvision NVR supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and RAID 5 is the most
As for RAID 5, if one HDD is broken, the RAID5 will be in degraded mode, and we can rebuild
RAID5 to recover data. If there are two HDDs broken, the RAID5 will be offline.
Note: RAID function is now supported by DS-9600NI-I series and DS-96000NI-I series NVR.
NVR, Four HDDs at least
1) If Global Hot Spare HDD is set before:
1. The degraded RAID 5 will rebuild automatically.
2. Then, user should replace the broken HDD with a new one, and plug it into HDD cabinet. Set its type as
Global Hot Spare in Storage→RAID→Physic Disk. Just in case that another HDDs will be broken.