1. Yes, but is more useful to use a backup drive that is obviously
larger than the mac (the backup source. If you start on a 500 GB
drive with a backup of 350 GB for the first backup then you will
have only 150 GB for future backups. You can calculate by your daily
backup Ø size how long it will last before Time Machine must start
to delete the oldest backup(s).
2. I am not sure I understand right.
– If the 1 TB LaCie is your current backup drive for the iMac it
depends how much space is left to use it additionally for mac mini
backups. (see 1.)
– If the 1 TB LaCie is the internal drive of your iMac then it may
work as backup drive for the new mac mini but Time Machine might
require to 'initialise' the disk to enable it as backp volume. This
will delete all data from the disk (the iMac).
I would start with two new backups for both macs. Delete the current
backup drive of the iMac, then do a new = last backup of the iMac
(assuming you won't use the iMac for future work). Then use the same
drive also for backups of the new mac mini. Means, this drive will
contain 1 backup of the iMac and the future backups of the mini.
Also consider:
– If you keep the iMac with its data AND copy all its data to the
new macMini then the iMac is 1 backup of the macMini (or vice versa
the Mini is a copy of the iMac). Thus, in case of limited backup
space, you could exclude your project folders from the iMac backup
(via Time Machine settings) and backup from the iMac the system
files only (in case you need to restore the iMac any time). To
indeed reduce the *total* backup size you need to delete all
existing backups first (or, easier, initialise the iMac's backup
drive before that last backup).
– Alternatively to copying all data from the iMac to the mini you
could copy only the *really* and currently *required* projects and
files … and feel free to copy others later, if ever needed.
Advantage: a.) the first backup for the macMini will be smaller (far
below the 358 GB of the iMac) and b.) the drive of the Mini (512 GB)
last longer for new projects, and same with the backup drive for the
Mini.
– First calculate what data and backup should go where, and avoid to
start deleting a drive or data that are not backupped (unless you
don't want them any more).
thomas
Am 17.11.23 um 16:39 schrieb katmcg: