I had the last version of Proxmox installed on my cluster. Since I didnt have anything important, I just started over and installed 7.0 on every node in my cluster. I was having problems with joining them all together. Through my research it seems that I had too much information left over on my sas drives from last install and that seemed to be what was causing my problems. So here I ma trying to find a way to write zero's to all the sas drives. I havent been able to find a method that works though. I've tried booting gparted live, wipemydisks, active kill disk etc... The only device any of these programs finds is the usb that i have the wiping software installed on. Is there a way for me to wipe all drives inside the server? I pulled the drives to wipe them individually, but I didn't realize the connector was different on sas drives and even though I built my own connector, neither windows or Linux is able to ID what i have attached through USB. SO i either need a way to wipe internally or I need some type of driver for Win10 or Linux to recognize my sas drives? I'd rather wipe in the servers because , even though I am just going to write zero's , it is going to take a very long time for me to wipe 26 hard drives one at a time. I also should note that I do not have matching servers. I am running a hillbilly cluster that includes a R610, DL360g5, DL380G7, ML330G6 and two PC's that were converted to Proxmox. I can wipe the PC hard drives , no problem, but I have 4 servers. Any help, like usual, will be reciprocated once I have learned the basics, as servers are all new technology to me...thanks for taking some of your valuable time to assist me.