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Trying to Add Drives to a Pool Without Data Loss

Joined
Sep 6, 2019
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#1
Sorry if i'm naive in asking this, i'm very new to FreeNAS.
My current setup is a single 3tb drive, with data on it.
I have two other blank 3tb drives that I want to add to the pool, and switch the pool to Raid 1. Would this be possible?
 

garm

FreeNAS Expert
Joined
Aug 19, 2017
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#2
Short answer is No, long answer is that it can be hacked. Search for building a degraded pool.

But seriously don’t do that. Find a way to backup the data and rebuild the pool. It’s way safer
 

anmnz

FreeNAS Guru
Joined
Feb 17, 2018
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#3
I have two other blank 3tb drives that I want to add to the pool, and switch the pool to Raid 1.
What pool configuration are you trying to end up with exactly?

"RAID-1" means mirroring. Are you trying to end up with your three drives in a triple mirror?

You can safely "attach" new drives to your existing drive to create a mirror if that is what you are aiming to do.
 
Joined
Sep 6, 2019
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#4
What pool configuration are you trying to end up with exactly?

"RAID-1" means mirroring. Are you trying to end up with your three drives in a triple mirror?

I didn't understand, I believe what I am actually looking for is raid 5, where I can lose 1 of the 3 drives.
 
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