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Dell Storage Manager 2020 R1 Administrator's Guide

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About Multitenancy

Multitenancy enables a single physical FluidFS cluster to be partitioned into several separate service entities (tenants) and manage each one individually. FluidFS supports up to 100 tenants. When multitenancy is enabled, the user interface is optimized and includes the tenants view.

Network connections – Each tenant utilizes exclusive IP addresses (virtual IPs). Users who have access to the tenant’s VIP can only see that tenant’s NFS exports, SMB shares, and so on.

Authentication and user repositories – Each tenant utilizes its own authentication and user repositories. Each tenant can define and use the following settings:
  • DNS configuration – The DNS configuration of the default tenant serves the cluster services (such as NTP).
  • Active Directory – Each tenant can join a different Active Directory. Two tenants can also join the same Active Directory (with separate tenant computer objects in Active Directory).
  • LDAP or NIS
  • Local users and groups
  • User mapping
Reusing of same name in different tenants – Multitenancy supports using the same SMB share name and the same local user or group name.

Volume Replication – Administrators can define between which tenants volume replication is allowed.

Managing tenants – FluidFS v6 added a new type of administrator called tenant administrators. A tenant administrator has the ability to:
  • See (but not update) all of the general cluster settings
  • Manage tenants they have been granted Tenant Administrator access to, including all the NAS volumes that belong to those tenants
  • Receive email events that are relevant to the entire cluster and to the tenants they have been granted Tenant Administrator access to, such as power-down events

Using Multitenancy With Existing Features

Multitenancy interoperates with the following existing FluidFS features:

Antivirus – SMB shares are isolated to their tenant. If any shares have antivirus enabled, they utilize the virus scanners that are defined at the clusterwide level.

File Access Notifications – File access notifications are set at a clusterwide level in FluidFS. If multitenancy is in use, only one tenant can utilize the external audit server feature. Separation of file access notifications between different tenants requires multiple FluidFS clusters. Alternatively, you can use SACL auditing, which is separated between tenants for file access notifications.

NDMP Backup – You can back up any of the volumes using any of the VIPs (or physical controller IPs), regardless of multitenancy. Separation of NDMP between different tenants requires multiple FluidFS clusters.

Replication and Disaster Recovery – The cluster administrator has the ability to create a partner relationship between the tenants on the source system and the tenants on the remote system.

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