Usually 50% less and with the same performance for HDD and standard SSD (the premium disk has more IOPS for the larger size)Įphemeral disks for smaller VM sizes: Ephemeral disks are really good for VM without local user data - like session hosts using FSLogix. A clean Windows installation has a size of less than 40 Gbyte, and a 64 Gbyte OS disk is usually sufficient - even if FSLogix is used to store personal data.īut what are the advantages of smaller disks? First, they are some reason to use smaller disks, like:Ī smaller disk costs less. So, all of your VM based on that image are deployed with a 128 Gbyte disk - even a “Golden Master” - typically used to build Azure Windows Virtual Desktop images. A Windows 10 image from the marketplace has a size of 128 Gbyte.
