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Macworld A few years ago, Apple decided to offer seamless optimization for storage on your Mac. Instead of knowing where every byte (or gigabyte) lived, you could enable optimization in Photos or iCloud Drive. With this feature turned on, your Mac would automatically perform an ongoing tradeoff of available disk storage and iCloud storage. Presuming you have enough iCloud storage, you could have up to 12TB of data stored in the cloud that is accessible on demand from your Mac, even if you only have a 256GB SSD. In practice, it’s more likely you have a 512GB or 1TB SSD and 2TB of iCloud storage…

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