Help Hard Drive nearly full

https://forums.adobe.com/people/Nick+Baelz  wrote My hard drive is nearly full. So I have bought a 1tb and 2tb external hard drives. I have backed up the catalog onto the 1tb and restored onto the 2TB. I now plan to use the catalog on the 2TB going forward. Is it safe or recommended to now delete the photo files off my c drive? Thanks Nick

It's safe, since you still have a backup. If you need more than one backup for extra safety, you may keep following backup folders on the 1 TB external drive. Of course, having two backups on two separate drives is a protection against a drive failure.