NetApp Clustered Data ONTAP¶
The Shared File Systems service can be configured to use NetApp Clustered Data ONTAP (cDOT) version 8.2 and later.
The driver can work with two types of pools: FlexGroup and FlexVol. By default, it only works with FlexVol, if desired, the FlexGroup pool can be enabled together or standalone.
FlexGroup pool requires ONTAP version 9.8 or later.
The following operations are supported on Clustered Data ONTAP:
Create CIFS/NFS Share
Delete CIFS/NFS Share
Allow NFS Share access
IP access type is supported for NFS.
Read/write and read-only access are supported for NFS.
Allow CIFS Share access
User access type is supported for CIFS.
Read/write access is supported for CIFS.
Deny CIFS/NFS Share access
Create share from snapshot
Create consistency group
Delete consistency group
Create consistency group from CG snapshot
Create CG snapshot
Delete CG snapshot
Create a replica (DHSS=False)
Promote a replica (DHSS=False)
Delete a replica (DHSS=False)
Update a replica (DHSS=False)
Create a replicated snapshot (DHSS=False)
Delete a replicated snapshot (DHSS=False)
Update a replicated snapshot (DHSS=False)
Migrate share server
The operations are not fully supported configuring FlexGroup pool:
Consistency group operations are only supported configuring the driver without any FlexGroup pool.
For FlexGroup share, create more than one replica is only allowed with ONTAP 9.9.1 and newer.
Migration of FlexGroup shares is not allowed.
Migration of share servers containing FlexGroup share is not allowed.
DHSS is abbreviated from driver_handles_share_servers.
Supported Operating Modes¶
The cDOT driver supports both ‘driver_handles_share_servers’ (DHSS) modes.
If ‘driver_handles_share_servers’ is True, the driver will create a storage virtual machine (SVM, previously known as vServers) for each unique tenant network and provision each of a tenant’s shares into that SVM. This requires the user to specify both a share network as well as a share type with the DHSS extra spec set to True when creating shares.
If ‘driver_handles_share_servers’ is False, the manila admin must configure a single SVM, along with associated LIFs and protocol services, that will be used for provisioning shares. The SVM is specified in the manila config file.
L3 connectivity between the storage cluster and manila host must exist, and VLAN segmentation may be configured. All of manila’s network plug-ins are supported with the cDOT driver.
For CIFS shares an external Active Directory (AD) service is required. The AD details should be provided via a manila security service that is attached to the specified share network.
Share access rules for CIFS shares may be created only for existing users in Active Directory.
The time on external security services and storage must be synchronized. The maximum allowed clock skew is 5 minutes.
cDOT supports only flat and VLAN network segmentation types.