NAS(Network-Attached Storage)
A dedicated storage device connected to your network that lets multiple devices store and access files centrally.
A NAS (Network-Attached Storage) provides shared storage over protocols like SMB and NFS. You can build one yourself with TrueNAS or OpenMediaVault, or buy a turnkey unit from Synology or QNAP. Most NAS setups use RAID or ZFS to protect against drive failure. Remember: a NAS provides availability, not backups — you still need offsite copies.
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RAID(Redundant Array of Independent Disks)
A method of combining multiple drives so they act as one, improving performance and/or protecting against drive failure.
ZFS
An advanced filesystem and volume manager offering data integrity, snapshots, compression and software RAID.
SMB(Server Message Block)
A network file-sharing protocol used by Windows, macOS and Linux to access shared folders.
NFS(Network File System)
A Unix-native network file-sharing protocol offering high performance between Linux systems.