FAQ Database Discussion Community

Data destroy using shred agains ext4 filesystem [closed]

I'm running shred against blockdevice with couple of etx4 filesystems on it. The blockdevices are virtual drives - RAID-1 and RAID-5. Controller is PERC H710P. command shred -v /dev/sda; shred -v /dev/sdc ... I can understand from shred man(info) page that shred might be no effective on journal filesystems but...