방법1) config 파일에 로컬 파일경로를 설정
filesystem_store-datadirs=""
http://egonzalez.org/multiple-store-locations-for-glance-images/



방법2) --store 옵션적용
root@con-206-22:~# glance --os-image-api-version 2 help image-create |grep "\-\-store"
root@con-206-22:~# glance --os-image-api-version 1 help image-create |grep "\-\-store"
usage: glance image-create [--id <IMAGE_ID>] [--name <NAME>] [--store <STORE>]
  --store <STORE>       Store to upload image to.

Configuring Glance Storage Backends

There are a number of configuration options in Glance that control how Glance stores disk images. These configuration options are specified in the glance-api.conf configuration file in the section [glance_store].

• default_store=STORE

Optional. Default: file

Can only be specified in configuration files.

Sets the storage backend to use by default when storing images in Glance. Available options for this option are (file, swift, rbd, sheepdog, cinder or vsphere). In order to select a default store it must also be listed in the stores list described below.

• stores=STORES

Optional. Default: file, http

A comma separated list of enabled glance stores. Some available options for this option are (filesystem, http, rbd, swift, sheepdog, cinder, vmware_datastore)

http://serverascode.com/2016/07/08/glance-multiple-backend-stores.html