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As long as you keep your program for full drive encryption secret, nobody will bother giving / is able to deliver an answer that is valid for all available crypto software.– r2d3Commented Feb 24, 2022 at 14:41
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Not sure I understand @r2d3, if you mean what I am going to use to encrypt the drives - I don't know! In fact suggestions appreciated, the question is primarily about if it is possible. My search terms didn't yield responses to what I am looking for...Then, if it is possible, how to do it...– unsafe_where_trueCommented Feb 24, 2022 at 14:44
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I'm unsure about hardware RAID, but software RAID [ZFS] allows creating a new encrypted dataset alongside non-encrypted datasets, and if you have ~32GB of RAM, you may want to consider using TrueNAS as the NAS OS (TrueNAS is RAM intensive when copying large amounts of data to its shares), otherwise there are Linux distros that support ZFS (software RAID is superior to hardware RAID for a wide variety of reasons]. General FYI: unless using SSDs, encryption will have a large performance impact with mechanical HDDs, so unless actually needed, it's generally not recommended in a non-SSD NAS.– JW0914Commented Feb 24, 2022 at 16:24
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@r2d3 - presumably PopOA / Linux and "all data" imply he is planning on using LUKS.– davidgoCommented Feb 24, 2022 at 18:31
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2Im not aware that LUKS (Linux full disk encryption ) can encrypt an in-use disk. The easiest solution may be the rebuild the NAS.– davidgoCommented Feb 24, 2022 at 18:32
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