Symptoms

An attempted restore from the Cloud Tier to Active Tier on Data Domain fails when running an Avamar restore of a cloud tiered backup.The logs show the following: avtier Info : Running ddrmaint recall-backup for client '4cdabxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' avtier Info : Retrieved status message '' avtier Error : Backup 1D73EF45XXXXXX:X failed to recall, reason: Failed to recall backup avtier Info : Retrieved null status message avtier Info : Statistic information: avtier Info : 0 backup recalled successfully: ...... avtier Info : 1 backup recalled unsuccessfully:

Cause

The cloud tier provider is either down, unreachable, or has a severe error that needs resolution.

Resolution

1. Attempt the restore from the command line (Use Step 2 from Avamar: How to recall backups that were migrated to DataDomain Cloud Tier as a reference): avtier --operation=restore --hfsaddr= --hfsport=27000 --path=/clients/ --labelnum= 2. If this shows the failure output: Load the Data Domain ssh keys.Log in to the Data Domain server.Check the health of the server: ddboostuser@ddserver# alerts show current Id Post Time Severity Class Object Message ------- ------------------------ -------- ---------- ---------------- --------------------------------------------------------------------------- xx-xxx Sat Apr 9 14:02:02 2022 CRITICAL Filesystem FilesysType=2 EVT-SPACE-00004: Space usage in Data Collection has exceeded 90% threshold. xx-xxxx Mon Apr 11 10:23:57 2022 CRITICAL Cloud CloudUnit=XXX_XX EVT-CLOUD-00001: Unable to access provider for cloud unit XXX_XX. d. Run the following commands to directly check the status of the cloud tier: ddboostuser@ddserver# filesys show space tier cloud ddboostuser@ddserver# cloud unit list If any error or failure is reported about the cloud unit provider, open a service request with the Data Domain team to assist with resolution.

Support Cases