How to transfer Time Machine backup to the new external hard drive

I'm upgrading to a 1 hard external to the Western reader to with 5 TB of Seagate.  This is because Time Machine has used the 1 TB drive.  How can I transfer the files from backup Time Machine from the old to the new drive so that backups continue to have access to the old files.

Although the documentation Apple says you can copy Time Machine backups in the Finder, it is very slow and sometimes does not.

This technique works only if the volume that you copy to the same size or larger that that you are copying to.

First of all, please open the Time Machine preference pane and click the Select Disk... button. You may be able to unlock the settings first, by clicking on the padlock icon in the lower left corner of the window. Log in as administrator.

Remove the volume you want to copy in the list of backup destinations. Then turn off Time Machine.

Launch disk utility, open the built-in Help and search for the term 'Double '. Follow the instructions. All existing data on the destination volume will be deleted. That shouldn't be a problem, because you do not want to mix non-sauvegarde and backup data on the same drive anyway.

If the volume you are copying has been encrypted by Time Machine, you must first unlock it. Click the release button in the toolbar of the disk utility window.

Turn Time Machine back on and select the new volume as a backup destination. Alternatively, you can continue to use the old volume, if you wish. Both will be alternated when both are available.

ATTENTION: If you copy the volume is corrupted, as shown by the ERD or first aid in disk utility, while corruption is copied to the new drive. Do not copy data from a damaged on a faulty disk volume. Put aside the reader and do not use until you don't know that you no longer need the data. Then securely erase it and bring it to a recycling center. Do the same if the restore operation fails with "disk errors."

Tags: Mac OS & System Software

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