The traditional 3-2-1 backup rule—three copies of data, on two different media types, with one copy stored offsite—is being reinterpreted by users as technology changes, with CDs largely abandoned in favor of external drives and cloud services like iCloud and Google Cloud. Reporting notes that cloud sync settings can sometimes delete files from the cloud when removed locally, and that offsite backups can still be vulnerable to ransomware if the storage device remains networked.
engadget.com
· 2026-10-10
A storage guide outlines how heat, humidity, and magnetic fields can damage hard drives over time, and notes that even undisturbed drives can fail due to seized mechanical parts or degraded capacitors. It recommends backing up all important data before archiving a drive, verifying the transfer, and following the 3-2-1 backup rule: three copies of data on two different mediums with one stored offsite.
engadget.com
· 2026-09-15
A hobbyist developer detailed a personal project to implement the classic 3-2-1 backup strategy—three copies of data, on two different media, with one copy offsite—entirely using free, self-managed tools. The effort was sparked by frustration with paying for cloud storage like Google One just to access files they already own, and involved syncing a Minisforum mini-PC, a Lenovo laptop, external hard drives, and mobile devices.
smarmelling.com
· 2026-08-31
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