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Commvault client loses connectivity to SMB shares

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1,262
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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Commvault
  • CIFS/SMB

Issue

  • CommVault is unable to maintain connection to CIFS/SMB share and notice error "A network connection was disconnected" on Commvault backup:
clipboard_e734a2024b24230355a488c81319fdcd4.png
 
  • May notice below errors in sktrace logs in Ontap at issue time:
2023-04-05T12:10:01Z 136617437674821770   [4:0] NBLADE_Chk:  n0xaa637f: src/Protocols/Cifs/Support/Smb2Credits.cpp:390 rt=1171
2023-04-05T12:10:01Z 136617437674923785   [2:0] NBLADE_Chk:  n0xaa637f: src/Protocols/Cifs/Support/Smb2Credits.cpp:390 rt=1171
2023-04-05T12:10:01Z 136617437675093101   [3:0] NBLADE_Chk:  n0xaa637f: src/Protocols/Cifs/Support/Smb2Credits.cpp:390 rt=1171

 

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