Integrating IBM Storage Scale Cinder driver with Red Hat OpenStack Platform 16.1

Integrate the IBM Storage Scale file system Cinder driver with Red Hat® OpenStack Platform (RHOSP) 16.1.3 as follows.

The following are the prerequisites before you start integrating IBM Storage Scale Cinder driver with RHOSP:

  • OpenStack Provider Network: 192.168.24.x/24
  • IBM Storage Scale CES Network: 10.0.0.x/24
  • All the overcloud nodes have access to IBM Storage Scale CES Network.

The IBM Storage Scale volume driver, named gpfs.py, enables the use of IBM Storage Scale in a fashion similar to that of the NFS driver. With the IBM Storage Scale driver, instances do not access a storage device at the block level. Instead, volume backing files are created in the IBM Storage Scale file system and mapped to instances, which emulate a block device. ​The Image service can also be configured to store glance images in the IBM Storage Scale file system.

In a scenario, when both compute and controller nodes are not running IBM Storage Scale software and do not have access to IBM Storage Scale file system directly as a local file system, the NFS export is created on the volume path and make it available on the controller and compute nodes.​ ​ This deployment mode is usually referred to as ​ Remote IBM Storage Scale Access​. For more information, see IBM Storage Scale volume driver - Mode 3.