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CIFS users intermittently unable to access flexgroup volume paths

  1. Last updated
    May 7, 2025
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16
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
nas
Last Updated:
5/7/2025, 4:34:53 AM

Applies to

  • FlexGroup rebalancing
  • CIFS
  • ONTAP 9.12.1 and later

Issue

  • Intermittent issue while accessing using applications for flexgroup file path
2025/04/03 15:13:50 ERROR : Attempt 1/3 failed with 23 errors and: write \\?\UNC\svm-001\\MEDIA FILES\Storyboards\SC0People\v4\SC0_People.zip: A device attached to the system is not functioning
 
  • EMS logs show ndrfm is set to auto
[?]  Thu Apr 03 13:56:14 +1000 [NAS-001-02: wafl_exempt08: wafl.ondemand.started:notice]: OnDemand operation started: FlexGroup rebalance operation on volume sym (DSID 1048 to 1049). ndrfm(auto) source_fh=510124.181920646 path=/Temp/2025-04-03_13-55-54_carly.g/YAHTZEE_STD_RAW.mb destination_constituent=sym__0002 operation_UUID=b0fd5057-2197-49c2-a82d-fec4d51cf048.
 [?]  Thu Apr 03 13:56:14 +1000 [NAS-001-02: wafl_exempt05: wafl.ondemand.srcQuiesced:debug]: OnDemand operation source quiesced: ndrfm(auto) path=/Temp/2025-04-03_13-55-54_carly.g/SYM_AST_CHR_YAHTZEE_STD_RAW.mb mfh=1048~510124.181920646 sfh=1048~510126.181920646 on sym__0001(DSID:1048) operation_UUID=b0fd5057-2197-49c2-a82d-fec4d51cf048
 [?]  Thu Apr 03 13:56:14 +1000 [NAS-001-02: wafl_exempt09: wafl.access.fenced.file:notice]: The file with inode 510124 on volume sym__0001 cannot be accessed because it is fenced by multiple operation.

 

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