Avamar: Data Domain backup fails with Error 5005 (no room left)

Summary: Avamar backups to Data Domain fail with error 5005, DDR result code: 1, desc: no room left. The issue occurs when the Data Domain disk staging area is not configured or is disabled, causing Avamar to fail while creating the required staging directory. ...

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Symptoms

The following are observed when back-up fails:
  • Avamar backup jobs fail during execution.
  • Backup logs report errors related to directory creation on Data Domain.
  • The Avamar system cannot create the required staging area on the Data Domain system.
  • The following messages appear in the Avamar logs:
2022-09-10 02:03:14 avtar Warning <18125>: Calling DDR_MAKE_DIR returned result code:5005 message:no room left
2022-09-10 02:03:14 avtar Error <10623>: Failed make dir /STAGING/b3463f6fddb6bce26057909145d36c79a1e17f68/BACKUP-5B34D03C63B893302BAF277224D3B42BEEF7B2A8 for backup, LSU: avamar-1639057826, ddrHandle: 5005, DDR result code: 1, desc: no room left
2022-09-10 02:03:14 avtar Error <40064>: Failed to create DDR staging area

Cause

Avamar requires a disk staging area on the Data Domain system. Disk staging is disabled by default, or the user may have disabled it. Data Domain cannot create new directories when the staging reserve is not configured or the available disk space is exhausted.

To confirm the issue on the Data Domain system, run the following command: 

grep "space left on device" ddfs.info | less
 

Example output:

09/11 12:59:12.736744 [7f4ff4e6cac0] CRITICAL: MSG-SEGSTO-00011: Index is out of space.
09/12 08:34:50.093056 [7f4feecad8a0] ddboost-<CLDLNX0063.arcorgroup.com-43442>: ddboost_api ERROR: ddp_mkdir() failed, Path avamar-1639057826/GSAN/cp.20220912112959.tmp/, mode 511, Err: 5005-nfs mkdir failed (nfs: No space left on device)
09/12 08:34:52.581623 [7f5004893610] ddboost-<CLDLNX0063.arcorgroup.com-43444>: ddboost_api ERROR: ddp_open_file_ext() failed for File: avamar-1639057826//0000000000000003.inx, Err: 5005-nfs enhanced create failed (nfs: No space left on device)
09/12 09:00:23.332404 [7f4ff250ba10] ddboost-<cldlnx1008-35523>: ddboost_api ERROR: ddp_mkdir() failed, Path avamar-1639057826/STAGING/22290ae02484d223be9ebecdb68a3c66264ce2b1/BACKUP-924582E8DC159B2BF7B9CADFACE69D5731930D2A, mode 511, Err: 5005-nfs mkdir failed (nfs: No space left on device)
09/12 09:00:23.356800 [7f4fdd7632a0] ddboost-<cldlnx1008-35523>: ddboost_api ERROR: ddp_mkdir() failed, Path avamar-1639057826/STAGING/22290ae02484d223be9ebecdb68a3c66264ce2b1/BACKUP-924582E8DC159B2BF7B9CADFACE69D5731930D2A/, mode 511, Err: 5005-nfs mkdir failed (nfs: No space left on device)
09/12 09:00:23.379585 [7f4feffb5f90] ddboost-<cldlnx1008-35525>: ddboost_api ERROR: ddp_mkdir() failed, Path avamar-1639057826/STAGING/22290ae02484d223be9ebecdb68a3c66264ce2b1/BACKUP-F864D00CAAEF980653484CCB287AEEE2DD22F6A3, mode 511, Err: 5005-nfs mkdir failed (nfs: No space left on device)
09/12 09:00:23.402197 [7f4ffc4a42f0] ddboost-<cldlnx1008-35525>: ddboost_api ERROR: ddp_mkdir() failed, Path avamar-1639057826/STAGING/22290ae02484d223be9ebecdb68a3c66264ce2b1/BACKUP-F864D00CAAEF980653484CCB287AEEE2DD22F6A3/, mode 511, Err: 5005-nfs mkdir failed (nfs: No space left on device)
09/12 09:00:24.032266 [7f4fc53e1ef0] ddboost-<cldlnx1008-35527>: ddboost_api ERROR: ddp_open_file_ext() failed for File: avamar-1639057826//container.1.cdsf, Err: 5005-nfs enhanced create failed (nfs: No space left on device)
09/12 09:00:24.046224 [7f505b7c4380] ddboost-<cldlnx1008-35526>: ddboost_api ERROR: ddp_open_file_ext() failed for File: avamar-1639057826//container.1.cdsf, Err: 5005-nfs enhanced create failed (nfs: No space left on device)
 

These messages confirm that the Data Domain file system has run out of available space for staging operations.

Resolution

Configure Disk Staging on Data Domain.

Enable disk staging and define an appropriate staging reserve to ensure sufficient space for Avamar operations:

Steps
  1. Log in to the PowerProtect DD System Manager.
  2. Select Data Management > File System > Summary > Settings > General.
  3. In the Staging Reserve section, switch the setting to Enabled.
  4. Enter a value in the % of Total Space field.
    1. Dell Technologies recommends 20% to 30% of total disk space.
  5. Click Save to apply the changes.
  6. Run a test backup to confirm successful operation.

Additional Information

  • Disk staging does not require a license.
  • Disk staging is compatible with backup applications that reclaim space when files are deleted.
  • Proper staging reserve sizing prevents backup failures before scheduled cleanup tasks run.

Affected Products

Avamar, Avamar Client, Avamar Client for VMware, Avamar Client for Windows, Avamar Server, Data Domain Boost

Products

Data Domain Boost – File System, DD OS, Data Domain Virtual Edition
Article Properties
Article Number: 000203440
Article Type: Solution
Last Modified: 13 أبريل 2026
Version:  3
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