Configuring GPFS mounted directory as Glance data directory

You can configure GPFS back-end storage on the controller or a compute node.

About this task

First, you must install and set up a General Parallel File System (GPFS) on your controller and compute nodes, as applicable. For more information, see the General Parallel File System product information.

After GPFS is set up, you can configure IBM® Cloud Manager with OpenStack to use GPFS.

Procedure

  1. In the controller node, mount the GPFS device to a local directory.
    You can also check whether a GPFS device is mounted. To do so, run the mount command. For example:
    [root@Controller ˜]# mount
....
/dev/gpfs on /gpfs type gpfs (rw,mtime,dev=gpfs)
  2. Ensure the user glance has permission to read and write to the GPFS mounted directory.
  3. In the Chef environment, set the override attribute openstack.image.filesystem_store_datadir = "<GPFS mounted dir>", and update the environment.
  4. Finally, update the topology.
    For instructions on updating the topology, see Updating a deployed topology.