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A bit off-topic, but I've just bought a small 2-bay synology NAS and I'm wondering if I should go ext4 or btrfs for my family photos/videos. I like the idea of data safety features like checksums & scrubbing, but ext4 seems more robust & tested. Which did you go with?

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btrfs works fine in Synology's implementation. Please keep in mind that RAID is not a backup. You can backup to a cloud service or to a friend's house with its own Synology.

Thanks, I was hoping it would. I understand that raid is not backup. I have two external drives and will probably also use a cloud service for off-site. I was also considering htl blurays for archives, but we'll see. The NAS will become the central storage hub so we don't keep files scattered around on family laptops and smartphones.

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