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SHR - if parity drive fails what happens

#1
Thank you for your youtube videos and website. I have recently brought a DS920+.
I set up the NAS with SHR as it allows for mix and match drives and easy expansion.
From watching your videos i know if a drive dies its easy to replace.
But i have a few questions i have not been able to find the answer for.
If you would be so kind to answer them for me.

If a drive dies in the NAS i know i can replace it. But while that drive is removed.
Can i still access what is on the nas? eg files, videos and so on.

Now I understand that SHR uses your largest drive as protection/parity you would call it.
But what happens if that drive dies?
Can you still access your files? Or does that mean you can not access them till you replace the drive.
Does this become a 1 point of failiure for SHR if it loses parity vs Raid which has parity
written accross all drives.

Do i need to or can i work out what drive if i have mupltiple drives of the same size
as the largest. Which drive is being used for parity and have that backed up externally or
cloned in some way to give me a drive to swap in if the parity drive was to die.
Any advice you can give on this would be great


Having originally started with standard drives i had two 6gb and two 4tb. I already shucked
two 10TB drives which will go in and replace my two 4tb drives.

Thanks for your time and help.
Regards
Chris from Australia
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SHR - if parity drive fails what happens - by ENQUIRIES - 11-05-2022, 09:30 PM

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