One is what the iSeries team refers to as direct and it is like pSeries Linux I/O. The I/O device is assigned specifically to the Linux partition and is fully managed by the Linux OS. The lists of devices are linked from the Linux on iSeries web pages at http://www.ibm.com/servers/eserver/iseries/linux/support.html.
The gulag system according to Russian statistics caused 1,053,829 deaths [1] or maybe 1.6 million. The Nazi death camps alone killed 3.2 million people[2] (in a period of 4-5 years 1941-1945), not to mention the endless number of labour and POW camps where millions perished as well.
With this understood, the Soviet Union appears the greatest megamurderer of all, apparently killing near 61,000,000 people. Stalin himself is responsible for almost 43,000,000 of these. Most of the deaths, perhaps around 39,000,000 are due to lethal forced labor in gulag and transit thereto.