Actually, there is only one RAM (and can be created only one RAM device), but RAM data file is stored on system disk.
Previous versions allow to place this file only on system partition.
There was request to be able to specify different partition for RAM (in any case it should be on system physical disk).
So now it possible to select different partitions for storing RAM data. So you see two (or more) ram devices available for selecting. May be it will be better to have one device and have setting with place to store data, instead of multiple RAM devices in list.
In you case you have some hiddent partition on system disk. So you see two RAM devices.
Dec 04, 2008
This is added functionality (may be confusing).
Actually, there is only one RAM (and can be created only one RAM device), but RAM data file is stored on system disk.
Previous versions allow to place this file only on system partition.
There was request to be able to specify different partition for RAM (in any case it should be on system physical disk).
So now it possible to select different partitions for storing RAM data. So you see two (or more) ram devices available for selecting. May be it will be better to have one device and have setting with place to store data, instead of multiple RAM devices in list.
In you case you have some hiddent partition on system disk. So you see two RAM devices.