For many of those who upgraded to Catalina, only to suffer protracted problems with Time Machine backing up to its traditional HFS+ destinations, this is one good reason to upgrade early. That means what in case of restart loop because of lack of free space you need to boot into recovery mode by holding Cmd + R right after machine starts, and go into Restore from Time Machine Backup there: you will have local time machine One of Big Sur’s biggest attractions is that it can now make Time Machine backups to APFS volumes. MacOS High Sierra (10.13) or later have an APFS file system which does disk state snapshots which are accessible as Time Machine backup.Starting with High Sierra, macOS 10.13, it replaced HFS+ on Macs. Distribute This Page: Bookmark & Share Download: PDF Manual The.It became the default file system for iOS 10.3 in March of 2017. If you’re still waiting to decide when to upgrade, this could help make your mind up.No matter the computer problem, we can fix any problem.MacOS 10.13 upgrading problems with no enough space. If you had The My Passport for Mac drive works with Apple Time Machine.4. In this case, it was important as I needed to format the disk, which had previously contained backups from another Apple Silicon Mac.The Mac computer asks if you want to use the WD storage device to back up data. Among them are: Snapshots Create point-in-time and read-only instance of the file system.You don’t have to prepare an APFS volume, as Time Machine will do that for you, but I prefer to make one ready using Disk Utility.
Occasionally, Disk Utility can still return an error claiming that it was unable to unmount the disk properly, so couldn’t format it. Mac won’t start after installing macOS 10.13 High SierraIf you then wish to check that your new disk and its formatting are correct, you can run First Aid on both the disk and container. That is the standard combination of settings for unencrypted APFS format external disks.Next, complete the installation of macOS High Sierra, and restore your files using the Time Machine backup when prompted. In the settings, select Scheme: GUID Partition Map, and Format: APFS, although the latter will be changed later by Time Machine. Select the disk in the list at the left then click on the Erase tool to format it. Connect your external backup disk, and once it has mounted open Disk Utility. ![]() Then exercise the Finder interface to those backups, and the Time Machine app interface too. Use T2M2 to check that those complete without errors. Check that the totalBytes transferred matches the size of the backup data on the disk, and the size expected from other entries in the reports provided.With that initial backup finished correctly, leave Time Machine to complete another couple of automatic backups. In relation to topic 3 above, if that is not possible, does Time Machine in Big Sur make automatic backups of such Virtual Machine files copying only changed blocks, and not the full (usually huge) Virtual Machine files, as happened with Time Machine in macOS 10.15 Catalina and previous versions?1. You said: “That should give you time to set any exclusions, such as Virtual Machine folders, using the Options… button”.Is it possible to make one backup of large files like Virtual Machines with Time Machine, then disable it but retaining such backup, and then manually backup again as required by the user, when such Virtual Machines are truly updated inside? I ask because Time Machine makes backups of such Virtual Machines by default, even when they are not significantly changed, like, for instance, when just opening and closing them, which fills the Time Machine of useless huge backup files of such Virtual Machine disks.4. You said: “In the settings, select Scheme: GUID Partition Map, and Format: APFS, although the latter will be changed later by Time Machine”.As far as I know, the latter will be automatically changed by Time Machine, except if the format is Mac OS Extended (HFS+), in which case it will not be automatically changed for the moment (surely, only APFS will be allowed in the future). That is particularly relevant for big files like virtual machines.2. When Time Machine in macOS 11 Big Sur makes subsequent backups into an APFS disk (once the first one is done), is it much faster, taking much less space than before? I ask because such version of Time Machine saves just block(s) of changed data inside files into APFS disks, instead of saving the whole files. Keep an eye over the coming hours and days to satisfy yourself that your backups are now working correctly, and that you can restore individual items and complete folders from your new backups.1. ![]() In addition to the problem of the VM changing a great deal, there is the problem of backing up a running VM, which TM definitely doesn’t cope with. TM isn’t designed for VMs, and there are much better backup solutions, depending on how often you want backups made. I also think that even if the disk is in HFS+ format, TM will invite you to change to APFS if possible.3. It’s worth formatting your intended backup drive, and silly to use any other format if you want to back up to APFS. There Is Not Enough Space On Time Hine For Backup On High Sierra Movie Or WhateverIt only prompts if it has a different format than HFS+ or APFS, and then it formats as APFS by default. At least with the beta versions that I tested, Time Machine in Big Sur does not reformat or prompt to format other way if the selected Time Machine is formatted as APFS. I think that it can be checked doing a “Time Machine – Back Up Now” (and inspecting the used disk space in the Time Machine disk) and then opening a large virtual machine, closing it (or changing a bit a large file like a movie or whatever), selecting again “Time Machine – Back Up Now”, checking the amount of data and the time that it takes in the “Time Machine – Open Time Machine Preferences”, and the final used disk space whown in the Time Machine disk.2. I don’t know, as I have excluded my VMs from TM backup.1. My passport for mac weight 2tbMy experience in the past is that Time Machine also backups fine virtual machines. Time Machine will continue backing up to existing HFS backup volumes. New local and network Time Machine backup destinations are formatted as APFS by default. After all, that is the main advantage of APFS for backups.1. If the Apple documentation is right, then Time Machine in Big Sur should copy only changed blocks, and not the full (usually huge) Virtual Machine files. SuperDuper and Carbon Copy Cloner (CCC) also work fine with them.4. ![]() Even if TM->APFS were to address some or all of them, wait until this is clearly established, or you could be very disappointed. In any case, this still doesn’t solve the problem of the VM changing while the backup is being made, does it?Moral: if you need to back up VMs, make separate arrangements which address their peculiar problems, and exclude them from TM. Our expectations aren’t always realised, for many different reasons. If you care to study TM logs, you’ll be surprised at how little is backed up by blocks.
0 Comments
Leave a Reply. |
AuthorTrevor ArchivesCategories |