Cloud Sync 転送が「 ENODEV ： no such device 」で失敗する

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環境

NetApp Cloud Sync
SMB

問題

NetApp Cloud Sync 関係が失敗するのは、「ENODEV：no such device」および「EAGAIN：resource temporarily unavailable」というエラーです。
- データブローカーの失敗したログでエラーが発生しました：

[INFO] [SCANNER] [8] [23432] [xxxxxxxxxxxx] [LIST] FAILED source { cifs: { host: '10.zz.yy.xx', share: 'xxxx', version: '3.0', provider: 'cifs', path: 'xxxx/xxxx/xxxx' } } and target: { nfs: { host: 'fs-xxxx', export: '/', version: '4.1', path: '/xxxx/xxxx/xxxx/xxxx', provider: 'efs', accessPoint: 'fsap-0xxxxxxxxx' } } [Error: ENODEV: no such device, scandir 'mnt/xxxxxxxxxxxx/xxxx-xxxx-xxxx-xxxx-xxxx_src/xxxx/xxxx/xxxx'] { errno: -19, code: 'ENODEV', syscall: 'scandir', path: 'mnt/xxxxxxxxxxxxx/xxxx-xxxx-xxxx-xxxx-xxxx_src/xxxx/xxxx/xxxx' }

ONTAP EMSログで確認されたエラー：

[?] Fri Jul 09 01:03:17 +1000 [node-01: kernel: Nblade.cifsMaxOpenSameFileNotice:notice]: Received 801 open file requests, nearing the configured limit of 1000, for the same file by one user on a connection: clientIP:port 10.zz.yy.xx:56142, file: "xxxx" on share: "xxxx".

[?] Fri Jul 09 01:03:21 +1000 [node-01: kernel: ems.engine.suppressed:debug]: Event 'Nblade.cifsMaxOpenSameFile' suppressed 4473 times in last 97183 seconds.

[?] Fri Jul 09 01:03:21 +1000 [node-01: kernel: Nblade.cifsMaxOpenSameFile:error]: Received too many open file requests for the same file by one user on a connection: clientIP:port 10.zz.yy.xx:56142, file "xxxx" on share "xxxx". Object type is: VSERVER with UUID: xxxxxxxxx-xxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxxx.