Dahua NVR hdd replacement

j4co

Pulling my weight
Joined
Jan 17, 2016
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The Netherlands
i have currently 3 hdd’s in my 5416-4ks2 nvr. This is 2 x 6 TB purple, and one 4 TB seagate survailance.

The 2 x 4 TB purple of my previous NVR i want to place inside the new NVR and than remove the one seagate.
If i just take it out, i might loose historical data i perhaps need.

Is there a scenario that i make the seagate read only, wait for like 3 weeks so i know there is no new video anymore recorded on that hdd and than swap it out and add hdd #4 ?

Is this a valid migration path ?

Since i got almost a month of recording time now, i can also buy 2 * 6TB units or even 2 * 8 TB units to expand somewhat, but the migration scenario does not change i guess.
 
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