this post was submitted on 06 Feb 2025
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Hey everyone. So I'm trying to decide which RAID should I choose for my 6trays NAS. I have 4 x 16TB HDDs, 1x8TB HDD and another one 500GB ssd that I will use as a containers' docker folder usage. I will be using the NAS to store Media files (movies, tv series, photos, music etc.) and also documents. Currently I have the 2 16tb as RAID 1 that only the Media files are stored and I am in between either creating another RAID 1 with the remaining 2 16Tbs or adding them to the other 2 to create a RAID 5 and have a bigger storage pool Have you had any incident where 2 HDDs were lost-damaged simultaneously (as RAID 5 forgives loss of only 1 drive) or not?

In addition I was thinking of having the 8TB HDD as a standalone to backup the documents and maybe the photos and the docker setups.

Does this make sense to anyone that uses similar setup?

Thanks for your inputs!

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[–] 01189998819991197253@infosec.pub 2 points 20 hours ago

I use raid5 on an HP server, and am dealing with 2 drive failures, because HP's qc is garbage. Raid6 would have saved me here, but it's not really likely to have 2 drives fail simultaneously, so... yeah.

I recommend looking into 321 backup, too. Raid isn't a backup solution, but it seems you already understand that and are trying to do that.