This chapter examines a few items of importance for the ongoing maintenance of ISE. It looks at repositories, the different backup types, and patching the ISE deployment.
Simply put, a repository is a location to store files. The repository may be local to ISE or positioned on a remote server. You may have more than one configured, but you certainly need at least one before you can perform backup or upgrade procedures. Repositories store all application upgrade bundles, support bundles, and system backups. It is recommended to have a repository of at least 10GB for small deployments (less than 100 endpoints), 100GB for medium deployments, and 200GB for large deployments.