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There will come a day when future Macs probably will not be able to read HFS-formatted drives.Īn extreme example: the 1890 census of the United States was stored on Hollerith cards, the precursor to computer cards. Similarly, older drives were formatted using HFS Apple’s current drive format is APFS. You need to find a utility (there are several) to convert older PICT images into modern JPEG images. For example, the original Macintosh image format was PICT, which cannot be used by modern Macs. Q: Do you need to “refresh” your drives to prevent them from freezing up?Ī: Older drives from a decade or more ago had “stiction” problems caused by the lubricant in the drives, but that really isn’t an issue today. I, for example, save my Time Machine backups to a drive on an Apple Time Capsule, but I save archives on bare hard drives I insert into a “drive toaster,” such as the NewerTech Voyager drive dock. Not only should these be on separate media, but ideally the media should be kept in different locations.
TEXT EDIT PREVIEW MAC ARCHIVE
An archive is a place where you store 13 years of photos of your children.ĭo not put your Time Machine backup and your archive on the same drive. They’d never backed them up, and suddenly, they were gone.Ī backup is to rescue you from an unanticipated event, such as a hard drive crash or, if you have a laptop, the theft or loss of your laptop.

One of my relatives lost a phone, and with it, all their photos of their children. The phone has contacts for everyone they care about, it has photos of vacations and momentous events, it has apps for banking and dating and games to play in boring meetings. A recent poll asked 18-to-30-year-olds which would be more traumatic: getting dumped by a significant other or losing their phone? Most people said: losing their phone. It is impossible to overemphasize the importance of having backups or archives. An archive should be disconnected and stored apart from your computer. The whole point of an archive is to have something stored elsewhere - a relative’s house, a bank safe deposit box - so that if something happens, you will have a copy of whatever was stored on the archive.Ī backup drive should be connected to your computer at all times. An archive is a snapshot of everything that is then removed from proximity to the computer and stored somewhere else. A backup is just that: a backup of everything, including things you forgot to backup. Q: Should I have Time Machine backup to two different drives and alternate them?Ī: That sounds like you are trying to do an archive rather than a backup. When you do the first Time Machine backup, it takes a long time, because everything is new, but after that, only new or changed files are added, and backups are quite quick. Q: If Time Machine backs up everything, continuously, won’t the backup drive fill up quickly?Ī: Time Machine backs up every hour, and while it does back up everything, it does a “differential” backup, backing up things that are changed or new. They are mounted in cases designed for the purpose, and the cases tell the drive when the computer goes to sleep, and when it wakes up. These are “enterprise” drives, designed to be left on all the time, and they come with five-year warranties. In contrast, I have three RAIDS with a total of 12 drives in them. This isn’t really a problem if the drive is used as a Time Machine backup drive.
TEXT EDIT PREVIEW MAC MAC
From the computer’s point of view, the drive was disconnected, and your Mac puts up a scary message.
TEXT EDIT PREVIEW MAC SOFTWARE
If the computer goes to sleep, the drive goes to sleep, without any hardware or software support to wake it up again when the computer wakes up. These drives are not designed to be left on all the time. Essentially, the consumer does the manufacturer’s quality control: if the drive works, great! If it doesn’t, they’ll replace it. These drives are great as Time Machine backup drives, but they are not top-of-the-line drives they usually have a one-year warranty rather than a multi-year warranty, and were not burned-in at the factory to make sure they work properly. Q: Why do I get an error message that my drive is disconnected when it is still connected?Ī: I’m guessing you have a USB drive that you bought from Costco or off Amazon or Best Buy or something. The March 2021 focused on two essential but overlooked utilities on the Mac, TextEdit and Preview.
