I have two Lacie SSDs attached to my iMac. One is a 2TB and the other is 4TB. I recently started getting a notice that backups weren't being done to that one. I tried unplugging it, tried a new cable and also tried it on another iMac. No luck. I'm going to guess it failed. I probably have a few TB of drone photos on there along with daily backups from my computer. Nothing that I can't live without but... is there a way to retrieve what is on there? I guess I'll be replacing it soon and will make sure my backup drive has a backup.