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this post was submitted on 18 Jun 2024
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Seconding this. For starters, when tempted to go for Raid5, go for Raid6 instead. I've had drives fail in Raid5, and in turn have a second failure during the increased I/O associated with replacing a failed drive.
And yes, setting up RAID wipes the drives. Is the data private? If not, a friendly datahoarder might help you out with temporary storage.
I run RAID5 on one device.... BUT only because it replicates data that's on 2 other local devices AND that data is backed up to a cloud storage.
And I still want it to be RAID 6.
Wut...
I think you're missing the point of RAID here, possibly. Where's the reliability in this?
Not to speak for the person above you. But I believe they are saying they have 1 computer with a raid5 array, that backs up to two different local servers, and then at least 1 of those 3 servers backs up to a cloud provider.
If that is true then they are doing it correctly. It is highly recommended to follow a 3-2-1 storage solution, where you back up to a local backup and a cloud backup for redundancy.
Ahhh, makes sense. That kind of wrecked my brain for a moment.
Lol, sorry, I really tried to make it clear what I was doing, honest, I did! 😄
Yes, I have 3 local devices that replicate to each other, one is RAID5, (well, 2 are, but...not for long). And one of them also does backup to a cloud storage.
Not ideal, because 3 devices are colocated, but it's what I can do right now. I'm working on a backup solution to include friends and family locations (looking to replicate what Crashplan used to provide in their "backup to friends" solution).