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One way is to have a pool of two or three removable flash devices, with only one plugged in at a time, the others in safe places elsewhere. Automate nightly da
by everybodyknows 7y ago
One way is to have a pool of two or three removable flash devices, with only one plugged in at a time, the others in safe places elsewhere. Automate nightly date-stamped copy to the card of just your essential data. At some interval that strikes a balance between convenience and safety, cycle the cards. You'll also need a scheme for pruning older backups to recover storage.
- pkaye 7y agoIn that case, understand the SSDs these days don't have great retention specs when not powered. Its one of the drawbacks of using smaller transistors and multi-level cell technology to increase capacity. When powered up they can do a background scan to scrub the data though.
- wtallis 7y ago> understand the SSDs these days don't have great retention specs when not powered. The standard for consumer-grade SSDs is retention of at least a year after the drive is worn out. When the drive has been used only lightly (which is likely to be the case for a backup drive), retention will generally be several times longer. Flash memory is still not a good choice as an archival medium, but it's not like your bits are going to fade away as quickly as a rechargeable battery.