Comment 3 for bug 1201503

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Sidnei da Silva (sidnei) wrote : Re: Add local disk constraint

Also worth noting:

Both ec2 and openstack have a concept of having a separate ephemeral disk attached to the instance as it boots.

For ec2 the number of attached disks and their size varies with instance types:

  http://aws.amazon.com/ec2/instance-types/

For openstack, you can define a single ephemeral disk of varying size, which is attached but not mounted by default afaict.

For azure, it seems like a default temporary disk 'D' is created but I can't find any information about its configurability or default size.

Handling ephemeral disk constraints should be implemented as a separate feature.