Can I erase what is stored on the drives and start over

I liked to erase what is already stored on the drives and start over.

Absolutely, if you are on a Mac you could just use the Disk Utility and Erase the drive and it will be empty and ready to accept any new data.

Thank you, I haven’t used it as a back up for sometime because it was near
capacity. Now when I turn it on it will not power up.

If it won’t physically power on at all then check the power adapter and if it is a G-RAID make sure it is 12v and 4 amps. If it is a G-DRIVE it will be 12v and 2 amps.

Thank youbut I got it powered up
I have two other G tech drives And they had to be on before the raid
powered up. I disconnected them from the computer so I didn’t make a
mistake and accidentally erase them. But apparently they are “interrelated”
so I am back to ground zero. Thank you again
Marty S