Login as admin and use CLI to select the project ID and update storage quota:
openstack project list +----------------------------------+-------------+ | ID | Name | +----------------------------------+-------------+ | 09f31bbbf0f74e39878a4c9bd2492724 | Jenkins | | 2a1bf13216b64664814c9a27dad95d06 | service | | 30d69308d72b49d2a5b1de9cbc3cae2c | play-ground | | 3598428b5ccb4b91832ddc455eb98c76 | admin | | 400552f5531b44dabe843575641da543 | tts | | 4712acc168284dfba4fa55d084745f83 | IDM | | 48734ec06e16443a81044cce57498894 | Repo | | 7f39d41b3d3b493f940f031bb2321632 | Stage | | a6024170acd045c59ae9f2fb6b14feeb | Search | | a786b2523ba64f34bf517cc7e85aa00a | S3 | | c8a3012e9f064715b6f7b5fd3906fd8e | openshift | | daa269324f5f4e6b9ee6a1aa700841e1 | ONIE-00 | | e2af574ac98540d1888ed84d89c1b552 | sandbox | | f193a967e75644e085fb7f558a97dd9f | IT | +----------------------------------+-------------+ [stack@undercloud rc]$ cinder quota-update --gigabytes 8000 09f31bbbf0f74e39878a4c9bd2492724 +----------------------+-------+ | Property | Value | +----------------------+-------+ | backup_gigabytes | 1000 | | backups | 10 | | gigabytes | 8000 | | per_volume_gigabytes | -1 | | snapshots | 10 | | volumes | 50 | +----------------------+-------+