ECC RAM(Error-Correcting Code Memory)
Memory that detects and corrects single-bit errors, improving data integrity on always-on servers.
ECC is common on workstation and server platforms like Intel Xeon and AMD Epyc. Consumer CPUs often lack ECC support.
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ZFS
An advanced filesystem and volume manager offering data integrity, snapshots, compression and software RAID.
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.