External hard drive is extremely slow backup

We have an external hard drive connected to our iMac. Time Machine used to store backups, but something happened and he stopped to save on 16 February the hard disk became full and when the reader become unalterable for Time Machine could not delete older backups.

I contacted Apple to see what we should do. Apple told me to format the external hard drive, so I did. Then I put the time Machine to start back up again to do.

Time Machine now seems to be back up to him, but he tells me that he will take 25 days. It will also very slowly.

Are there still problems with the hard drive? What should we do? Is it actually backup? It will still save it slowly or right the first time?

Thank you!!!

Look at the hard disk in the sidebar of the Finder and see if a new Time Machine file has been created on the drive. If so, I'd let the backup race. Since reformat you the drive, Time Machine needs to backup the entire computer. Initial estimates of the remaining time are usually very inaccurate. Once the initial backup is complete, backup will go much quicker. See questions 7 and 29 in the article below.

Time Machine FAQ

Tags: Mac OS & System Software

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