Skip to main content
NetApp Knowledge Base

Why does modifying the volume option "-snapdir-access" require a re-mount?

  1. Last updated
  2. Save as PDF
Views:
288
Visibility:
Public
Votes:
0
Category:
fas-systems
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • NFSv3

Answer

  • The behavior depends on whether the client sends a V3 LOOKUP call.
  • If the client sends a V3 LOOKUP call, the storage system will respond appropriately based on the current -snapdir-access setting.
  • If the client refers to the local directory caches and does not send a V3 LOOKUP call, the new -snapdir-access setting on the storage side will not take effect.
Example:
 
-snapdir-access disabled:
 
80  2024-04-06 14:25:00.017290 0.000079 Client_IP 698 Storage_IP 2049 NFS 226 V3 LOOKUP Call (Reply In 81), DH: 0x69edfd3b/.snapshot
81  2024-04-06 14:25:00.017384 0.000094 Storage_IP 2049 Client_IP 698 NFS 186 V3 LOOKUP Reply (Call In 80) Error: NFS3ERR_NOENT
 
[root@centos1 mnt]# cd .snapshot
-bash: cd: .snapshot: No such file or directory
 
 
-snapdir-access enabled:
 
82 2024-04-06 14:52:03.471510 0.000067 Client_IP 978 Storage_IP 2049 NFS 226 V3 LOOKUP Call (Reply In 83), DH: 0x69edfd3b/.snapshot
83 2024-04-06 14:52:03.471599 0.000089 Storage_IP 2049 Client_IP 978 NFS 322 V3 LOOKUP Reply (Call In 82), FH: 0x0408dcdd
 
[root@centos1 mnt]# cd .snapshot
[root@centos1 .snapshot]#

Additional Information

additionalInformation_text
NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.