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!

  • hendrik@palaver.p3x.de
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    6 hours ago

    I’m fine with RAID5. Though I’ve seen the case where one drive failed and another one had several bad sectors and maybe was at the brink of failure, too. We were able to rebuild the RAID and replace both drives succesively but lost a few files. I think chances are slim, though. And even with RAID6, chances are your house burns down or lightning hits the neighborhood or a thief breaks in and takes the entire server. Or you or someone deletes stuff. So it doesn’t really replace a backup in any case. I’d say RAID5 is fine for home use. Take backups of your most important files.