Data Domain - Moving the Data Domain from one site to another 

Pre‑move Verification

• Confirm sufficient space, power, network connectivity, and Fibre Channel (FC) connections at the new site.
• Run a final AutoSupport collection for reference.
• Ensure all backup applications stop writing to the Data Domain.
• Complete any in‑progress replications and verify they are synchronized.
• Decide if the file system must be encrypted and locked for security.
• Optionally configure a management IP address, netmask, and gateway before shutdown.

Directory Structure and Mtree Usage

• List all mtree definitions and verify which are active.

# mtree list

Active Directory Configuration

• Check that the Active Directory account and realm are reachable from the new location.

# cifs show config

Client Connection Checks

CIFS (Common Internet File System) Clients

• Identify CIFS shares and active connections.

# cifs share show
# netstat

NFS (Network File System) Clients

• Identify NFS exports and active connections.

# nfs show clients
# netstat

FTP and Telnet Access

• Verify whether FTP or Telnet protocols are enabled.

# adminaccess show

Boost Clients.

• List existing Dell EMC Boost client connections.

# ddboost show connections

Firewall Port Verification

• Ensure required ports for CIFS, NFS, replication, Boost, and related services are open at the new site.

Tape Library Connectivity

• Check Virtual Tape Library (VTL) or Data Library Manager (DLM) groups for client accessibility after the move.

# vtl group show all

Network Configuration

Hostname

# net show hostname

Host File

# net hosts show

Static Routes

# route show config

Net Filter (IP Tables)

# net filter show kernel
# net filter show map

Default Gateway, DNS, and Domain Name

# route show gateway
# net show dns
# net show domainname

Network Settings (IP Address, Speed, LACP)

# net show settings

Intelligent Platform Management Interface (IPMI) Configuration

# ipmi show config

Boost Interface Group

# ddboost ifgroup show config all

Network Time Protocol (NTP) Servers

# ntp show config

Mail and Alert Configuration

Mail Server and Administrator Email

# config show mailserver
# config show admin-email

Alert Notification Recipients

# alert notify-list show
# support notification show all

Time Zone

# config show timezone

Location Information

# config show location
# config set location

Replication Configuration

• If the Data Domain is a replication source, verify that the destination can be reached.

# replication show config

Shutdown Procedure

• Confirm that all pre‑move checks are complete.
• Safely shut down the Data Domain system
• Transport the system to the new site.

Post‑move Reconfiguration

• Power on the Data Domain.
• Apply any pending network, DNS, gateway, or LACP changes.
• Update the hostname, host file entries, static routes, and net filter configuration as needed.
• Reconfigure Boost interface groups, NTP, mail settings, alert email recipients, time zone, and location.
• Verify replication connectivity.
• Confirm that all CIFS, NFS, Boost, FTP, Telnet, and tape library clients can write.
• Run a final AutoSupport to capture the new configuration.

Data Domain: How to power-off and move a DD system