CramHQ stores satellite telemetry as block blobs. Mission analysts rarely touch data after seven days, but during anomaly reviews they must load any 30-day window from the preceding year into analytics before the next shift. Older data is kept only for audit sampling. Accidental overwrites have occurred. Which recommendation best balances protection, cost, and restore timing?
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Cold is an online access tier with millisecond access while lowering storage cost for rarely used data. Archive is appropriate only after the one-year review horizon, and versioning plus soft delete protects against overwrite and deletion mistakes.