Reservations
Unlike virtual resources on a regular on-demand cloud, physical resources on Chameleon must be reserved before using them for an experiment. Once a reservation has been accepted, users are guaranteed that resources will be available at the time they chose (except in extraordinary circumstances such as hardware or platform failures), which helps to plan large scale experiments.
Chameleon resources are reserved via Blazar which provides Reservation as a Service for OpenStack.
Three types of resources can be reserved: physical bare metal hosts, network segments (VLANs), and floating IPs.
Attention
A note on lease stacking
To prevent resource hoarding and ensure fair access to specialized hardware, Chameleon discourages “lease stacking” or making multiple overlapping reservations. Review our lease stacking policy to align your reservations with community practices for efficient resource use.