Configures one or more gateway local disks as cache for a gateway. This operation is only supported in the cached volume, tape, and file gateway type (see How Storage Gateway works (architecture).
See https://paws-r.github.io/docs/storagegateway/add_cache.html for full documentation.
storagegateway_add_cache(GatewayARN, DiskIds)
[required]
[required] An array of strings that identify disks that are to be configured as
working storage. Each string has a minimum length of 1 and maximum
length of 300. You can get the disk IDs from the
list_local_disks
API.