Old HDD - New Instantiation?

goral

Cadet
Joined
Apr 10, 2020
Messages
9
Hi.
I have FreeNAS with one HDD. HDD is nearly full.
I plan to add 2xHDD 6GB as RAID1 And make backup instead of pay for online backup (I hope it will be possible, to use instead of online backup).
I plan to clean install TrueNAS. Actual installation was for testing purpose.
Then I plan to make RAID1 and setup backup.
I want also add existing HDD to new installation is possible to just add old HDD without loosing data? Or need be formatted?
Thanks.
 
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