Stage an Image
The stage option is useful if you are using a low-bandwidth connection. On low bandwidth connections, manually staging a software image before deploying the image helps prevent the image deployment from timing out because of a slow connection. On high-bandwidth connections, you can choose to stage the image along with the image deployment.
When you stage a software image, the checksum of the image in Juniper Security Director is verified with the checksum of the image in the device. If the checksum of the image on the device does not match with the checksum in Juniper Security Director, the image copied on to the device is deleted and the image is copied again.
An administrator or a user with the privileges to add, stage, and deploy software images can stage an image.
You must stage or copy a software image onto a device before upgrading the software running on the device.