A NAS is *way* too easy for even a novice to build to justify buying it as an appliance. Set up a software RAID and filesystem with LVM+XFS or ZFS or bcacheFS. Install the NFS server userspace utilities. Use the in-kernel NFS server. Add a line or two of configuration to /etc/exports.

Done. That’s what, fifteen minutes of work tops?

NextCloud, Plex, Minio (s3, backed by Linstor), NFS CSI driver, Linstor (DRBD), Pacemaker (HA NFS server, backed by Linstor).

Linstor controls the block layer and transport, as well as providing a FS-agnotic replication layer. NFS is used for HDD-backed file storage, and is extremely simple and reliable due to the stateful cluster that controls it. S3 is used by various applications, as it’s easy as hell to implement clients for. S3 has an SSD and HDD tier, as well as an AWS-replicated tier. S3 is where my backups go (Velero).

You can find 12-bay raspberry PI blade chassis that fit in 2U on thingiverse. I had a friend print me one. It’s been wonderful. You can buy them too, of course.

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