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Old 01-25-2023, 01:28 AM   #1
Adagio_Leopard
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Wich drive does RAID 1 sync?


Hi!
We upgraded our server from 18.04 to 20.04 last week and we removed one of the drives from the RAID 1 to make an image before starting.
So it's out of sync.

I just want to know if I put it back if it'll sync to the currently running OS?
Not sure if I can hotswop it.

Should I first format it perhaps?

I just really don't want it to sync the old OS back to the drive
 
Old 01-25-2023, 06:08 AM   #2
lvm_
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All RAIDs I know of, md included, treat re-adding a drive in an expected manner - sync to it, not from it.
 
Old 01-25-2023, 06:19 AM   #3
syg00
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Note the reference to "re-adding" - not adding.
Hopefully you have a bitmap, so the whole experience will be a lot less painful.
 
  


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