Tape vs disk vs object: retention tradeoffs
Overview
Each medium has cost, speed, and air-gap profile.
Tape
True air-gap, slow restores, logistics-heavy—still valid for long archival compliance.
Disk
Fast local ops; ransomware risk if online—pair with immutable object tier.
Object/S3-compatible
Scalable; lifecycle policies automate cooling tiers; egress costs on restore.
Consulting talk track
Match medium to legal retention years and access frequency, not habit.
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