GPFS driver uses IBM General Parallel File System (GPFS), a high-performance, clustered file system, developed by IBM, as the storage backend for serving file shares to the manila clients.
Create NFS Share
Delete NFS Share
Create Share Snapshot
Delete Share Snapshot
Create Share from a Share Snapshot
Allow NFS Share access
Currently only ‘rw’ access level is supported
Deny NFS Share access
Install GPFS with server license, version >= 2.0, on the storage backend.
Install Kernel NFS or Ganesha NFS server on the storage backend servers.
If using Ganesha NFS, currently NFS Ganesha v1.5 and v2.0 are supported.
Create a GPFS cluster and create a filesystem on the cluster, that will be used to create the manila shares.
Enable quotas for the GPFS file system (mmchfs -Q yes).
Establish network connection between the manila host and the storage backend.
Manila driver configuration setting¶
The following parameters in the manila configuration file need to be set:
share_driver = manila.share.drivers.ibm.gpfs.GPFSShareDriver
gpfs_share_export_ip = <IP to be added to GPFS export string>
If the backend GPFS server is not running on the manila host machine, the following options are required to SSH to the remote GPFS backend server:
gpfs_ssh_login = <GPFS server SSH login name>
and one of the following settings is required to execute commands over SSH:
gpfs_ssh_private_key = <path to GPFS server SSH private key for login>
gpfs_ssh_password = <GPFS server SSH login password>
The following configuration parameters are optional:
gpfs_mount_point_base = <base folder where exported shares are located>
gpfs_nfs_server_type = <KNFS|GNFS>
gpfs_nfs_server_list = <list of the fully qualified NFS server names>
gpfs_ssh_port = <ssh port number>
Restart of manila-share service is needed for the configuration changes to take effect.
The driver does not support a segmented-network multi-tenancy model but instead works over a flat network where the tenants share a network.
While using remote GPFS node, with Ganesha NFS, ‘gpfs_ssh_private_key’ for remote login to the GPFS node must be specified and there must be a passwordless authentication already setup between the manila share service and the remote GPFS node.