Avamar: Clients Fail DD Boost Connection With Error 5189 "Mtree/File Attribute Does Not Exist"

Summary: Avamar Windows Client (WC) and Non‑Windows Client (NC) backups fail when connecting to Data Domain systems running DD OS 7.2.0.40-664052 or later. The issue affects Avamar 19.3.100-149 clients and results in connection failures either at backup start or during backup execution. ...

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Symptoms

One or more of the following symptoms happen:

  • Multiple Avamar WC and NC clients fail to connect to the Data Domain system.
  • Backup jobs fail at startup or terminate mid‑backup.
  • Failures happen constantly across affected clients using Data Domain Boost.

The system reports the following error: 

2021-10-13 19:01:01 avtar Info <19156>: - Establishing a connection to the Data Domain system with encryption (Connection mode: A:3 E:2).
2021-10-13 19:01:06 avtar Warning <18133>: Calling DDR_MOPEN returned result code:(5189) Mtree/file attribute does not exist > message:DDRInstance::Connect: Unable to connect to DDR: ddserver.example.com
[ 6524] [10708] Wed Oct 13 19:01:06 2021
	ddp_connect_with_config() failed, Hostname: ddserver.example.com, Err: 5189-nfsproc3_ostmntsec_3 failed (nfs: No such attribute)
 [ 6524] [4204] Wed Oct 13 19:00:58 2021
	ddp_access() failed, Path avamar-1542297765/STAGING/1418a202cd07880077e3fac7072f3e724a5652c1/BACKUP-D4BF539AA29F08E3B45EC97E93B98245C8857A57, mode 0 Err: 5004-nfs lookup failed (nfs: No such file or directory)

2021-10-13 19:01:06 avtar FATAL <16688>: API call DDR_OPEN_MSTREAM, unhandled API exception occurred, failing this call and all future calls. (sessionmgr)
2021-10-13 19:01:06 avtar Warning <16708>: API in exception state, rejecting API call DDR_
From Valentine Selva to Everyone:  05:56 PM
Timestamps of errors and event (Date/Time)
021-10-13 19:01:06 avtar Warning <18133>: Calling Err: 5189 Mtree/file attribute does not exist > message:DDRInstance::Connect: Unable to connect to DDR: ddserver.example.com
[ 6524] [10708] Wed Oct 13 19:01:06 2021
ddp_connect_with_config() failed, Hostname: ddserver.example.com, Err: 5189-nfsproc3_ostmntsec_3 failed (nfs: No such attribute)
[ 6524] [4204] Wed Oct 13 19:00:58 2021
ddp_access() failed, Path avamar-1542297765/STAGING/1418a202cd07880077e3fac7072f3e724a5652c1/BACKUP-D4BF539AA29F08E3B45EC97E93B98245C8857A57, mode 0 Err: 5004-nfs lookup failed (nfs: No such file or directory)
2021-10-13 19:01:06 avtar FATAL <16688>: API call DDR_OPEN_MSTREAM, unhandled API exception occurred, failing this call and all future calls. (sessionmgr)
2021-10-13 19:01:06 avtar Warning <16708>: API in exception state, rejecting API call DDR_CLOSE

Cause

This issue results from a compatibility problem with the DD Boost library version 7.2.0.5 build 654364 embedded in Avamar 19.3.100-149 WC and NC clients. The problem happens when these clients connect to Data Domain systems running DD OS 7.2.0.40-664052 or later.

Resolution

Upgrade all affected Avamar WC and NC clients to Avamar version 19.4 or later.

Complete the following steps:

  1. Download the Avamar 19.4 client software for the appropriate operating system.
  2. Upgrade the Avamar Client on all affected systems.
  3. Verify successful client registration and connectivity to the Data Domain system.
  4. Run test backups to confirm normal operation.

No configuration changes or workarounds are available for Avamar 19.3.100-149 clients with the affected DD OS versions.

Additional Information

  • Avamar 19.3.100-149 clients are not compatible with Data Domain OS 7.2.0.40-664052 or later when using the embedded DD Boost library.
  • Dell recommends keeping compatible Avamar Client, DD Boost, and Data Domain OS versions as documented in the Avamar Compatibility Guide.
  • This issue affects both Avamar Windows Clients and Non‑Windows Clients using Data Domain Boost.

Affected Products

Avamar, Avamar Client, Avamar Client for Linux, UNIX, MacOSX, Avamar Client for VMware, Avamar Client for Windows, Avamar Plug-in

Products

Avamar Plug-in for Exchange VSS, Avamar Plug-in for Hyper-V VSS, Avamar Plug-in for IBM DB2, Avamar Plug-in for Lotus Domino, Avamar Plug-in for NDMP, Avamar Plug-in for Oracle, Avamar Plug-in for SAP with Oracle, Avamar Plug-in for SharePoint VSS , Avamar Plug-in for SQL, Avamar Plug-in for Sybase ASE ...
Article Properties
Article Number: 000194540
Article Type: Solution
Last Modified: 15 شوال 1447
Version:  2
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