You ll need to start with a clean external hard drive in order to make a bootable drive for your cloned backup.
Mirror two external hard drives mac.
Looking to add storage or for a smart way to back up your mac.
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On the standard raid levels mirror is defined as raid 1 and it consists of having an exact bit to bit replica of the data in another hard drive.
Here s what you need to know along with our top rated apple friendly drives.
Select parity to be protected from a single drive failure and have more space but remember that a parity space is noticeably slower than the other options here.
Use spotlight to search for the disk utility app.
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When mirroring a hard drive for restoration you must select a destination drive that has the same if not greater storage capacity as your existing drive.
Usually a mirror setup contains two hard.
Connect your external drive into the appropriate port on your mac.
How to prepare your external drive to use for your clone.
Double click on disk utility to open it.
Select two way mirror to store two copies of your data across the drives or select three way mirror to store three copies of your data across the drives.
The best external hard drives and ssds for mac in 2020.