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Re: mdadm usage



	Hi.

On Wed, Dec 30, 2020 at 09:55:06AM -0500, Marc Auslander wrote:
> Andrei POPESCU <andreimpopescu@gmail.com> writes:
> >
> >Automatic mirroring / synchronizing is unsuitable for backups, because 
> >it will also sync accidental changes to files (including deletions) or 
> >filesystem corruptions in case of power outage or system crash (that may 
> >lead to corrupted files or entire directories "disappearing").
> 
> BUT - once you have hardware reliable storage (raid1) you can do backups
> into the same disks you are backing up!

And what purpose would it serve? IMO it's not a backup unless it's
stored in a way that's inaccessible to the system its taken from (until
it's actually needed of course).

Reco


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