Virtual Data Movers

1. Virtual Data Movers Upon completion of this module, you should be able to: Describe Virtual Data Mover and its benefits and operations Create and manage Virtual Data Movers on a VNX system Virtual Data Movers

2. Virtual Data Movers Lesson 1: Virtual Data Mover Overview During this lesson the following topics are covered: VNX Virtual Data Mover (VDM) feature overview Benefits that VDMs provide to CIFS and NFS file storage VDM operations Virtual Data Movers

3. VDM Root File System Virtual Data Mover Virtual Data Mover Overview • A “software” Data Mover • Supports: • Multiple CIFS servers • An NFS server for single domain namespace • Access data file system(s) and: • Shares for CIFS servers • Exports for NFS server • A “virtual container” • Holds configuration data for CIFS and NFS servers, shares and exports • Portable - can be moved or replicated to another physical Data Mover NFS Server CIFSServer Data File System Virtual Data Movers

4. Configuration held within each VDM • Root file system: root_fs_<vdm_x> • Mounted data file systems • CIFS server specific data: • CIFS server configurations • Local Group DB • Kerberos Information • CIFS share DB • Home directory information • Audit and event logs • Secmap • NFS server specific data: • NFS server endpoint and exports • Name resolvers and STATD hostname NFS Server CIFSServer Secmap CIFS Server names and interfaces Local Groups database Kerberos Information CIFS share database Home Directories Event logs NFS server endpoint and namespace STATD hostname NFS exports Interfaces Virtual Data Mover root_fs_vdm_1 data_FS Virtual Data Movers

5. Data Mover Feature & Configuration Information Virtual Data Movers

6. Virtual Data Mover Benefits • Ease of management of CIFS servers • Server isolation and security • Independent CIFS configurations on the same Data Mover • Load balancing • Migration and replication solution • NFS multiple domain solution Virtual Data Movers

7. root_fs_vdm_1 DataFS Mount / / Mount /share Configuration Files Virtual Data Mover Operational Virtual Data Mover • The physical Data Mover has the VDM root file system mounted • The VDM’s NFS and CIFS servers are available on interfaces • The VDM has the data file system mounted to its root file system NFS Server Interface CIFSServer NFS Server Interface Interface CIFSServer Root File System Interface Interface / NIS, DNS & NTP Client Interface /root_vdm_1 /DataFS /export Physical Data Mover Virtual Data Movers

8. Moving a VDM Storage > Shared Folders > CIFS > VDMs > Properties • VDM is moved to another physical Data Mover • VDM unmounts data file systems • VDM unloads from source physical Data Mover • VDM loads on target physical Data Mover • VDM mounts data file systems Virtual Data Movers

9. Unloading a VDM Storage > Shared Folders > CIFS > VDMs > Properties • VDM Stops running on physical Data Mover • Data file system(s) must be unmounted from VDM • VDM NFS/CIFS servers stop • Data Mover unmounts VDM root file system • VDM stops access to Data Mover resources Virtual Data Movers

10. Virtual Data Movers Lesson 1: Summary During this lesson the following topics were covered: VNX Virtual Data Mover (VDM) feature overview Benefits that VDMs provide to CIFS and NFS file storage VDM operations Virtual Data Movers

11. Virtual Data Movers Lesson 2: Create and Manage Virtual Data Movers During this lesson the following topics are covered: Virtual Data Mover creation VDM states VDM Implementation considerations for: Naming Internationalization NFS Portability Virtual Data Movers

12. Storage > Shared Folders > CIFS > VDMs > Create Creating a VDM via Unisphere Virtual Data Movers

13. VDM States • Loaded – normal operational state • Unloaded – inactive state • Mounted – read-only state Virtual Data Movers

14. Summary of VDM States Virtual Data Movers

15. VDM Naming Considerations • VDM names must be unique • Avoid VDM name conflicts within VNX and if replicating to another VNX system • Renaming a VDM renames its root file system. Replicator Virtual Data Movers

16. Internationalization Mode Considerations • When created, VDM is set to internationalization mode of source physical Data Mover • When VDM is moved or replicated, target Data Mover internationalization mode must match VDM’s mode ASCII Unicode Unicode Unicode Virtual Data Movers

17. Considerations for NFS on VDMs • VDM supports NFSv3 and NFSv4 over TCP protocol • UDP not supported • Supports a single NFS domain naming space per VDM • NFS configuration on VDMs is performed with CLI only • Refer to Configuring Virtual Data Movers on VNXdocument NFSv3/v4 TCP Virtual Data Movers

18. VDM Portability Considerations • Networks and network services for source and target Data Movers • DNS/LDAP/NIS, NTP • Interface names for NFS and CIFS servers • Disk volumes and file systems DNS NTP NIS LDAP Virtual Data Movers

19. Virtual Data Movers Lesson 2: Summary During this lesson the following topics were covered: Virtual Data Mover creation VDM states VDM Implementation considerations Virtual Data Movers

20. Summary Key points covered in this module: • A Virtual Data Mover (VDM) is a VNX software-based Data Mover • Considerations for implementing VDMs include: • Naming • Internationalization • Portability Virtual Data Movers