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InfoScale™ 9.0 Storage Foundation Cluster File System High Availability Administrator's Guide - Linux

Last Published: 2025-04-14

Product(s): InfoScale & Storage Foundation (9.0)

Platform: Linux

Configuring OpenStack

OpenStack is a cloud operating system that controls large pools of computer, storage, and networking resources in a data center. OpenStack provides a dashboard that lets you provision resources using a web interface.

Veritas InfoScale is integrated with the following OpenStack components:

Cinder - is a block storage service for OpenStack. Cinder provides the infrastructure for managing volumes in OpenStack. Cinder volumes provide persistent storage to guest virtual machines (known as instances) that manage OpenStack compute software.
Manila - lets you share file systems with virtual machines on OpenStack.

Figure: Veritas InfoScale with OpenStack Cinder

Configuring Cinder

Ensure that a CFS filesystem exportable through CNFS is configured.
Run the following command
cfsshare display
An output similar to the following indicates it is configured correctly.
```
		CNFS metadata filesystem : /locks
  Protocols Configured : NFS
  #RESOURCE MOUNTPOINT PROTOCOL   OPTIONS
  share1   /vx/fs1     NFS rw,sync,no_root_squash,no_subtree_check
```
A Virtual IP address is used to export CFS through NFS in the OpenStack controller.

On the OpenStack cluster, edit cinder.conf as under

[infoscale-1]
volume_driver=<Name of the InfoScale Cinder driver>
volume_backend_name=<NFS share name. >
nfs_shares_config=<File to share details as vip:/exported_dir>
nfs_mount_point_base=<Mount point for the 
                      share to be  mounted on OpenStack Cinder. >
nfs_sparsed_volumes=<True - to Preallocate or sparse files>
nfs_mount_options= <Mount options for OpenStack Cinder to use 
                                                  for NFS mount>
:
[DEFAULT]
:
enabled_backends = lvmdriver-1,infoscale-1

Edit /etc/cinder/Infoscale_share_hdd and add <Virtual IP address>/<mountpoint of the cfsshare volume>.
Copy /opt/VRTS/openstack/drivers/veritas_cnfs.py to cinder/cinder/volume/drivers/.
Run the following commands to assign write permissions to NFS mount point on the OpenStack controller node.
setfacl -m u:stack:rwx /cinder/cnfs/cnfs_sata_hdd
chmod -R 777 /etc/cinder/infoscale_share_hdd
Run the following command to restart cinder service.
/etc/init.d/openstack-cinder-volume restart
Review output as under
```
Stopping openstack-cinder-volume: [ OK ]
Starting openstack-cinder-volume: [ OK ]
```
After you restart the OpenStack Cinder driver, the latest configuration file is introduced. The OpenStack cinder log files are at /var/log/cinder/volume.log.
Run the following commands to create a Volume type on the OpenStack controller node and map it to InfoScale.
cinder type-create <New Volume type>
cinder type-key <New Volume type> set volume_backend_name=INFOSCALE_HDD

Any cinder operation performed on the new volume type results in an operation on the NFS mountpoint. Following table describes the mapping of Openstack commands to Infoscale operations.

Table: Mapping of OpenStack commands to InfoScale operations

OpenStack command	InfoScale operation
Creation of a Cinder volume	File creation on NFS mountpoint
Deletion of a Cinder volume	File deletion on NFS mountpoint
Creation of snapshot of a Cinder volume	Hardlink creation of file
Deletion of snapshot of a Cinder volume	Deletion of file
Creation of Cinder volume from existing snapshot of Cinder volume	Hardlink creation of file
Creation of cloned Cinder volume	Hardlink creation of file If cloned volume size is not same as source volume, resize file
Growing of existing Cinder volume	Extending file size

OpenStack Cinder does not allow you to share a block device simultaneously between virtual machines. Using OpenStack Manila, you can share a single file system between multiple virtual machines. OpenStack Manila provides a shared file system as a service. Infoscale is integrated with OpenStack Manila through an OpenStack Manila driver that lets you share Veritas Access file systems with virtual machines on OpenStack.

Figure: OpenStack with Manila

Configuring Manila

As a prerequisite, CFS filesystem must be configured by using cfsshare. Run the following command.
cfsshare display
Output similar to the following indicates a successful configuration.
```
  CNFS metadata filesystem : /locks
  Protocols Configured : NFS
```

On the OpenStack cluster, edit manila.conf as under

[vinf-share]
share_driver= manila.share.drivers.veritas.veritas_infoscale_manila.
 InfoscaleShareDriver
driver_handles_share_servers = False
share_backend_name = vinf-share
vinf_server_ip = <Infoscale REST server IP address>
vinf_port = <Infoscale REST port, default is 5637>
vinf_user = <Infoscale REST administrator user>
vinf_passwd = <Infoscale REST administrator user's password> 
vinf_dg = <Infoscale diskgroup on which CNFS cfsshare is configured>
vinf_domain = <Infoscale domain>
vinf_share_path = <path on Infoscale cluster
                      where cfsshare is mounted> 
:
[DEFAULT]
:
enabled_backends = lvmdriver-1,vinf-share
:

Copy /opt/VRTS/openstack/drivers/veritas_infoscale_manila.py to manila/manila/share/drivers/veritas/ in the home directory of OpenStack user.
Restart manila services after configuration.
On the OpenStack controller node, run the following commands to create a share type for va-backend1 and associate the share type to a share backend.
manila type-create <new-backend> False
manila type-key <new-backend> set driver_handles_share_servers=false share_backend_name=vinf-share

Table: Mapping of Manila commands to InfoScale

Manila command	InfoScale operation
Creation of a share	Creation of InfoScale Volume Creation of CNFS cfshsare on Volume
Deletion of a share	Deletion of CNFS cfsshare Deletion of Volume used for cfsshare
Creation of snapshot of a share	Creation of InfoScale Volume Creation of snapshot of a shared Volume on a newly created Volume.
Deletion of snapshot of a share	Deletion of InfoScale Volume on which snapshot resides
Creation of share from a snapshot of share	Creation of new InfoScale Volume Creation of snapshot of existing snapshot of share Creation of CNFS cfsshare from this new Volume
Growing / Shrinking an existing manila share	Growing / Shrinking shared Volume