Disk Utility
Disk Utility
The Disk Utility contains information about various activities conducted using the Disk Utility Application. This includes the date and time of the beginning of each session. You can also see information for every step of a process. This can be useful if there is an error while creating an image or formatting a disk. This is also useful because it may help find a time when a disk or drive was formatted or “wiped”.
Copy and Paste this into the terminal to open the log with the console application.
open /Users/$USER/Library/Logs/DiskUtility.log