Disable Disk Signature Writing in Windows

 Windows default behaviour is to write to the disk signature of basic disks when they are attached/detected by windows. This can cause merry hell with iscsi volumes, especially those with existing setups. Start diskpart interactively and put in the following:

automount disable

Then:

automount scrub

The first setting disables automounting and the second resets any past configs for disks that have been previously attached. 

Written on March 26, 2010