Your post wrongly assumes that every new drive is empty. Many USB drives people use to shuck comes formated in NTFS from the factory. So no, not every new drive is wipe clean from factory. You can't also guarantee that the disk don't become magnetized if it is exposed to a strong magnetic field prior to installation. And you wrongly assume every drive added is a new empty drive, not a drive prior used in FreeNAS, Openvault etc. Other wrong assumption is that every bit written into the disk is a zero. Look at this topic and see many problems in zeroing that occur because of defective RAM. I'm pretty sure Unraid doesn't verify its cleared drives, so this can led to errors in the parity check if you have a bad RAM stick. As it is now, you can use Erase and Clear Disk to write randomized data into it. It reads the disk prior to write, but if you think it's important to random fill the drive prior to the first (surface) read, it can be easily adapted. It's not written to be a test tool, but in many cases this script behaves like one. I look into the statistics sent and I see loads of disks that have increased pending and reallocated sectors after the preclear, and many disks that fails preclear because of uncorrectable sectors and other hardware problems, so I know it can be a valuable tool. Obviously, if you think the plugin is redundant you can always skip it's use and rely in the built-in Unraid functionality. Enviado de meu SM-G985F usando o Tapatalk