Hello Members who have upgraded to macOS High Sierra 10.13, Time Machine and APFS: What You Need to Know
If your Mac has all-flash storage, you’ll automatically be converted to APFS. The new file system is already in use across iOS, tvOS, and watchOS. What this new file system means for Apple’s backup solution, Time Machine. Your Time Machine will still work with APFS, but there are some facts you should know about how it functions Time Machine and APFS Do Play Nice, Sorta Apple has recently published a support article <https://support.apple.com/en-gb/HT208018> for system administrators regarding APFS and macOS High Sierra. The most important thing to know about Time Machine and APFS is that you’ll still be able to back up your data after converting your Mac to APFS. You don’t need to change any settings to back up APFS-formatted disks. With that said, Time Machine share points have to utilize SMB instead of AFP. Since Apple has deprecated AppleTalk Filing Protocol, APFS only supports SMB and NFS share points. Hopefully you don’t have too many AFP share points to change. Here are a few other things you should probably know about APFS and how it works with your Mac. Your Mac converts FileVault drives APFS Encrypted volumes, too. Boot Camp cannot currently read from or write to APFS-formatted volumes, but it is compatible with macOS High Sierra. Apple deprecated AFP, so volumes formatted as APFS cannot offer share points over the network with that protocol. You have to use SMB or NFS. ---- Time Machine supports APFS as a source and not a destination. You can't backup to an APFS destination disk and Time Machine will inform you that the disk needs to be HFS+ if you attempt to do this. Right now, there's nothing you need to or should do. Your internal disk has been converted to APFS and your backup disk is still on HFS+, so Time Machine will function as it always has, and will continue to inherit previous backups despite the difference in format. On a future date when Time Machine supports APFS destinations, you can convert your backup disk. —— Until Time Machine is updated, it does not support APFS on the backup disks. Apple needs to resolve the linkage to folders first. Hard links to directories are not supported in Time Machine, Apple will need to reprogram TM. I'm sure when they have Time Machine updated, they will make the change to APFS seamless. Cheers, Ronni 13-inch MacBook Air (April 2014) 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz 8GB 1600MHz LPDDR3 SDRAM 512GB PCIe-based Flash Storage macOS High Sierra 10.13
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