Azure provides what they call "Azure Temporary disk" at typically /dev/sdb for most instance sizes; it's *not encrypted* and it's ephemeral, but is garanteed to

Azure provides what they call "Azure Temporary disk" at typically /dev/sdb for most instance sizes; it's *not encrypted* and it's ephemeral, but is garanteed to be co-located (at least rack-level) with your CPUs.