The last line of output can be used to identify annex instances; you won't have to do that unless something goes wrong. +Before starting the annex, =condor_annex= will check to make sure that the instances will be able to contact your pool. Contact your machine's administrator if =condor_annex= reports a problem with this step. + {subsection: instance types} Each {link: https://aws.amazon.com/ec2/instance-types/ instance type} provides a different number (and/or type) of CPU cores, amount of RAM, local storage, and the like. If you're not sure, we recommend starting with 'm4.large', which has 2 CPU cores and 8 GiB of RAM. As noted in the example output above, you can specify an instance type with the =-aws-on-demand-instance-type= flag.