Yes I found this 1.13 Petabyte file while repairing an iMac
There had been backup problems….

A Petabyte is 10¹⁵ (1000000000000000) or a thousand billion bytes to you and me.
If this data were mp3 files it could playback for over 2000 years…

Did not have more than a million gigabyte drives spare, so took alternative action.

After some grief, the disk was repaired and the data (c.250mb) recovered.