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Unable to restore ACLs on CIFS share using Commvault

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • CIFS / SMB
  • Commvault Backup
  • Dynamic Access Control (DAC)

Issue

Due to backup software utilizing an ACE type not support in ONTAP by default - ONTAP responds with 'Unsuccessful'
 
A packet trace show the unsuccessful request:
 
51 2021-09-16 16:48:15 10.10.20.21 10.10.15.25 SMB2 SetInfo Request SEC_INFO/SMB2_SEC_INFO_00 File: [unknown]
 
SMB2 (Server Message Block Protocol version 2)
    SMB2 Header
    SetInfo Request (0x11)
        [Filename: ]
                NT System (SACL) ACL
                    Revision: NT4 (2)
                    Size: 76
                    Num ACEs: 1
                    NT ACE: 
                        Type: Unknown (18)
                        NT ACE Flags: 0x00
                        Size: 68
                NT User (DACL) ACL
 
52 2021-09-16 16:48:15 10.10.15.25 10.10.20.21 SMB2 SetInfo Response, Error: STATUS_UNSUCCESSFUL

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