On 05/31/2017 08:04 AM, m.roth at 5-cent.us wrote: > I've got an old RAID that I attached to a box. LSI card, and the RAID has > 12 drives, for a total RAID size of 9.1TB, I think. I started shred > /dev/sda the Friday before last... and it's still running. Is this > reasonable for it to be taking this long...? Was the system booting from /dev/sda, or were you running any binaries/libraries from sda? Often you'll be able to shred the device you boot from, but you won't get a prompt back when it's done.