Rescan scsi

To rescan your scsi disks (to look if a disk has been added) you can reread your scsi device by giving the following command:

echo "- - -" >/sys/class/scsi_host/host0/scan

It's very handy if you added a disk in VMware, don't want to reboot and have no flashy thingy disk-tools.

If you added space to your first disk you need to rescan your disk with:

echo 1 > /sys/block/sda/device/rescan