Tegile Driver

The Tegile Manila driver uses Tegile IntelliFlash Arrays to provide shared filesystems to OpenStack.

The Tegile Driver interfaces with a Tegile Array via the REST API.

Requirements

• Tegile IntelliFlash version 3.5.1
• For using CIFS, Active Directory must be configured in the Tegile Array.

Supported Operations

The following operations are supported on a Tegile Array:

• Create CIFS/NFS Share

• Delete CIFS/NFS Share

• Allow CIFS/NFS Share access

  • Only IP access type is supported for NFS
  • USER access type is supported for NFS and CIFS
  • RW and RO access supported

• Deny CIFS/NFS Share access

  • IP access type is supported for NFS
  • USER access type is supported for NFS and CIFS

• Create snapshot

• Delete snapshot

• Extend share

• Shrink share

• Create share from snapshot

Backend Configuration

The following parameters need to be configured in the [DEFAULT] section of /etc/manila/manila.conf:

[DEFAULT]
Option	Description
enabled_share_backends	Name of the section on manila.conf used to specify a backend. E.g. enabled_share_backends = tegileNAS
enabled_share_protocols	Specify a list of protocols to be allowed for share creation. For Tegile driver this can be: NFS or CIFS or NFS, CIFS.

The following parameters need to be configured in the [backend] section of /etc/manila/manila.conf:

[tegileNAS]
Option	Description
share_backend_name	A name for the backend.
share_driver	Python module path. For Tegile driver this must be: manila.share.drivers.tegile.tegile.TegileShareDriver.
driver_handles_share_servers	DHSS, Driver working mode. For Tegile driver this must be: False.
tegile_nas_server	Tegile array IP to connect from the Manila node.
tegile_nas_login	This field is used to provide username credential to Tegile array.
tegile_nas_password	This field is used to provide password credential to Tegile array.
tegile_default_project	This field can be used to specify the default project in Tegile array where shares are created. This field is optional.

Below is an example of a valid configuration of Tegile driver:

[DEFAULT]

enabled_share_backends = tegileNAS

enabled_share_protocols = NFS,CIFS

[tegileNAS]

driver_handles_share_servers = False

share_backend_name = tegileNAS

share_driver = manila.share.drivers.tegile.tegile.TegileShareDriver

tegile_nas_server = 10.12.14.16

tegile_nas_login = admin

tegile_nas_password = password

tegile_default_project = financeshares

Restart of manila-share service is needed for the configuration changes to take effect.

Restrictions

The Tegile driver has the following restrictions:

• IP access type is supported only for NFS.
• Only FLAT network is supported.

The manila.share.drivers.tegile.tegile Module

Share driver for Tegile storage.

class TegileShareDriver(*args, **kwargs)

Bases: manila.share.driver.ShareDriver

Tegile NAS driver. Allows for NFS and CIFS NAS storage usage.

create_share(*args, **kwds)

create_share_from_snapshot(*args, **kwds)

create_snapshot(*args, **kwds)

delete_share(*args, **kwds)

delete_snapshot(*args, **kwds)

ensure_share(*args, **kwds)

extend_share(*args, **kwds)

get_network_allocations_number(*args, **kwds)

get_pool(*args, **kwds)

shrink_share(*args, **kwds)

update_access(*args, **kwds)