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TurboTier configuration failed while configuring TurboTier with Dell Data Domain

TurboTier configuration failed while configuring TurboTier with Dell Data Domain

Problem description

When configuring a newly deployed CloudCache R4 appliance with Dell Data Domain storage, the TurboTier configuration fails to complete. The setup wizard displays the following error:TurboTier configuration failed This issue occurs during the initial storage configuration phase when CloudCache validates the storage target endpoint.

Cause

The failure is caused by a Domain Name System (DNS) resolution failure on the CloudCache appliance. The CloudCache R4 appliance requires valid Fully Qualified Domain Name (FQDN) resolution to establish and authenticate communication with Dell Data Domain. Even if direct IP reachability is functional, failure to resolve the Data Domain's FQDN causes the TurboTier setup script to abort.

Traceback

Error message observed in the Druva Management Console:

TurboTier configuration failed

Diagnostic findings:

  • IP reachability: Successful (ping/telnet over IP works).

  • FQDN resolution: Failed (nslookup / ping <FQDN> returns unresolvable host).

  • Affected component: CloudCache (TurboTier-R4).

Resolution

To resolve the issue, add an explicit host entry for the Dell Data Domain storage system on the CloudCache appliance:

  1. Log in to the CloudCache appliance terminal/CLI as an administrative user.

  2. Open the /etc/hosts file using a text editor (e.g., sudo vi /etc/hosts or sudo nano /etc/hosts).

  3. Add a new entry mapping the Dell Data Domain IP address to its FQDN:

    <Data_Domain_IP_Address>    <Data_Domain_FQDN>    <Data_Domain_ShortName>

    Example:

    192.168.10.50    datadomain01.corp.example.com    datadomain01

  4. Save the changes and exit the editor.

  5. Return to the Druva Management Console and re-trigger the CloudCache TurboTier configuration.

Verification

  1. From the CloudCache appliance CLI, run a ping or name resolution query against the FQDN:

    Bash

    ping -c 4 <Data_Domain_FQDN>

    Verification: Ensure the output shows packets being transmitted and received with zero packet loss.

  2. Verify reverse lookup using getent:

    getent hosts <Data_Domain_FQDN>

    Verification: The command must return the configured IP address matching the /etc/hosts entry.

  3. Complete the TurboTier setup wizard in the Druva Management Console and confirm the storage status transitions to Configured / Active.

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