CIFS共有での新しいファイルの作成が、エラー0x8000FFFF：重大な障害で失敗します

EMSログです

Wed Aug 17 11:33:41 CEST [cluster-n5: wafl_exempt10: wafl.dir.size.max.warning:error]: Directory size for fileid 730548 in volume vol1 is approaching the maxdirsize limit.
Wed Aug 17 12:27:18 CEST [cluster-n5: wafl_exempt10: wafl.dir.size.max.warning:error]: Directory size for fileid 730548 in volume vol1 is approaching the maxdirsize limit.

パス「bigFolder」のファイルとディレクトリの表示

cluster::> vserver security file-directory show -vserver segotx1035 -path /vol1/qtree1/bigfolder

         Vserver: segotx1035
        File Path: /vol1/qtree1/bigfolder
    File Inode Number: 730548  <<<<<<<<<
     Security Style: ntfs
     Effective Style: ntfs
     DOS Attributes: 10
 DOS Attributes in Text: ----D---
Expanded Dos Attributes: -
      UNIX User Id: 65534
      UNIX Group Id: 65534
     UNIX Mode Bits: 777
 UNIX Mode Bits in Text: rwxrwxrwx
          ACLs: NTFS Security Descriptor
             Control:0x9004
             Owner:Netapp\user1
             Group:Netapp\Domain Users
             DACL - ACEs
              ALLOW-Everyone-0x1200a9
              ALLOW-BUILTIN\Administrators-0x1f01ff-OI|CI
              ALLOW-CREATOR OWNER-0x1f01ff-OI|CI|IO
              ALLOW-CREATOR GROUP-0x120080-OI|CI|IO
              ALLOW-Everyone-0x120080-OI|CI|IO