Hey guys I have a question for you. I wanted to erase my macintosh hd in secure erase mode. But it didn't work. Please have a look at the attached picture.
MacBook Pro (Retina, 13-inch,Early 2015), OS X Yosemite (10.10.5)
The startup drive is failing, or there is some other internal hardware fault.
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
I have a contact with the apple staff online. They told me this is because the feature of SSD doesn't need to do secure erase. Here is a reference.
OS X: About Disk Utility's erase free space feature - Apple Support
Macintosh HD Secure Erase failed
