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nsrim and nsrstage failing to free space on the Data Domain - no errors logged without debugging, and none explicitly stating failureMedia database records for Expired savesets are removed during nsrim or Server Protection policy runData Domain mtree list or filesys show space commands confirm no space being freed after running commandsData Domain filesys report generate file-location path volume_path confirm that some saveset structures exist on the Data Domain which no longer remain in the media databaseDebug logs show that recordless savesets are indeed being identified and added to the prospective delete list: nsrsnmd-D3 Saveset 4041419807 (81dca01b-00000006-f0e32c1f-69e32c1f-9d355000-e460a556) is being added to devss_lst on volume volume_name.001 Followed by a failure to access the /active/ volume subdirectory nsrsnmd-D4 fsys_opendir(/mtree/volume_path/active): Opening the directory '/mtree/volume_path/active' failed [5004] ddp_open_dir() failed, su_name=mtree, path_name=volume_path/active, Err: 5004-nfs lookup failed (nfs: No such file or directory) There are disconnection messages around the same time: ddcl_disconnect(): disconnecting connection to ip_address with num_reconnects = 10 Manually relabeling or erasing the media successfully deletes the recordless savesets
The storage node responsible for the space recovery operation is being disconnected by the Data Domain when space recovery is attempted.
The problem may be temporary in nature, reduce connectivity issues by disabling Storage Node features, and corresponding Server feature: snode device connectivity check enabled: NoDynamic nsrmmds: NoDevice connectivity check enabled: No It may also be helpful to apply general space recovery optimizations: NetWorker: Optimizing space recovery operations for Data Domain
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