Isilon Driver
The EMC manila driver framework (EMCShareDriver) utilizes EMC storage products
to provide shared filesystems to OpenStack. The EMC manila driver is a plugin
based driver which is designed to use different plugins to manage different EMC
storage products.
The Isilon manila driver is a plugin for the EMC manila driver framework which
allows manila to interface with an Isilon backend to provide a shared
filesystem. The EMC driver framework with the Isilon plugin is referred to as
the “Isilon Driver” in this document.
This Isilon Driver interfaces with an Isilon cluster via the REST Isilon
Platform API (PAPI) and the RESTful Access to Namespace API (RAN).
Requirements
- Isilon cluster running OneFS 7.2 or higher
Supported Operations
The following operations are supported on an Isilon cluster:
Backend Configuration
The following parameters need to be configured in the manila configuration file
for the Isilon driver:
- share_driver = manila.share.drivers.emc.driver.EMCShareDriver
- driver_handles_share_servers = False
- emc_share_backend = isilon
- emc_nas_server = <IP address of Isilon cluster>
- emc_nas_server_port = <port to use for Isilon cluster (optional)>
- emc_nas_login = <username>
- emc_nas_password = <password>
- emc_nas_root_dir = <root directory path to create shares (e.g./ifs/manila)>
Restart of manila-share service is needed for the configuration changes to take
effect.
Restrictions
The Isilon driver has the following restrictions:
- Only IP access type is supported for NFS and CIFS.
- Only FLAT network is supported.
The manila.share.drivers.emc.driver Module
EMC specific NAS storage driver. This driver is a pluggable driver
that allows specific EMC NAS devices to be plugged-in as the underlying
backend. Use the Manila configuration variable “share_backend_name”
to specify, which backend plugins to use.
-
class EMCShareDriver(*args, **kwargs)
Bases: manila.share.driver.ShareDriver
EMC specific NAS driver. Allows for NFS and CIFS NAS storage usage.
-
allow_access(context, share, access, share_server=None)
Allow access to the share.
-
check_for_setup_error()
Check for setup error.
-
create_share(context, share, share_server=None)
Is called to create share.
-
create_share_from_snapshot(context, share, snapshot, share_server=None)
Is called to create share from snapshot.
-
create_snapshot(context, snapshot, share_server=None)
Is called to create snapshot.
-
delete_share(context, share, share_server=None)
Is called to remove share.
-
delete_snapshot(context, snapshot, share_server=None)
Is called to remove snapshot.
-
deny_access(context, share, access, share_server=None)
Deny access to the share.
-
do_setup(context)
Any initialization the share driver does while starting.
-
ensure_share(context, share, share_server=None)
Invoked to sure that share is exported.
-
extend_share(share, new_size, share_server=None)
Is called to extend share.
-
get_network_allocations_number()
Returns number of network allocations for creating VIFs.
The manila.share.drivers.emc.plugins.isilon.isilon Module
Isilon specific NAS backend plugin.
-
class IsilonStorageConnection(*args, **kwargs)
Bases: manila.share.drivers.emc.plugins.base.StorageConnection
Implements Isilon specific functionality for EMC Manila driver.
-
allow_access(context, share, access, share_server)
Allow access to the share.
-
check_for_setup_error()
Check for setup error.
-
connect(emc_share_driver, context)
Connect to an Isilon cluster.
-
create_share(context, share, share_server)
Is called to create share.
-
create_share_from_snapshot(context, share, snapshot, share_server)
Creates a share from the snapshot.
-
create_snapshot(context, snapshot, share_server)
Is called to create snapshot.
-
delete_share(context, share, share_server)
Is called to remove share.
-
delete_snapshot(context, snapshot, share_server)
Is called to remove snapshot.
-
deny_access(context, share, access, share_server)
Deny access to the share.
-
ensure_share(context, share, share_server)
Invoked to ensure that share is exported.
-
extend_share(share, new_size, share_server=None)
Extends a share.
-
get_network_allocations_number()
Returns number of network allocations for creating VIFs.
-
setup_server(network_info, metadata=None)
Set up and configures share server with given network parameters.
-
teardown_server(server_details, security_services=None)
Teardown share server.
-
update_share_stats(stats_dict)
TODO.
