I have an fstab mountpoint defined as follows:
//host.local /media/share1 cifs noexec,nofail,auto,nouser,_netdev,credentials=/home/foo/.smbcredentials,gid=1000,uid=1000,rw 0 0
The network share is available on local NAS server (QNAP) configured to suspend disk storage within 15 minutes of inactivity. That is working as intended when using nautilus to browse samba share. However, when mounting with cifs the client is periodically querying NAS with what seems an empty request "Command: Create (5)" or Keep-Alive "Command: KeepAlive (13)". The NAS responds with "STATUS_SUCCESS -> Create Action: The file existed and was opened (1)" or Keep-Alive response.
SMB2 (Server Message Block Protocol version 2) SMB2 Header Server Component: SMB2 Header Length: 64 Credit Charge: 1 Channel Sequence: 0 Reserved: 0000 Command: Create (5) Credits requested: 2 Flags: 0x00000000 Chain Offset: 0x00000000 Message ID: Unknown (299) Process Id: 0x00000ba6 Tree Id: 0x79c61208 Session Id: 0x00000000448e3aa5 Signature: 00000000000000000000000000000000 [Response in: 1748] Create Request (0x05) StructureSize: 0x0039 0000 0000 0011 100. = Fixed Part Length: 28 .... .... .... ...1 = Dynamic Part: True Oplock: No oplock (0x00) Impersonation level: Impersonation (2) Create Flags: 0x0000000000000000 Reserved: 0000000000000000 Access Mask: 0x00000080 File Attributes: 0x00000000 Share Access: 0x00000007, Read, Write, Delete Disposition: Open (if file exists open it, else fail) (1) Create Options: 0x00000000 Filename: Offset: 0x00000078 Length: 0 ExtraInfo: NO DATA Offset: 0x00000000 Length: 0
Can I somehow make cifs to not periodically ping NAS share so the NAS can go into standby eventually? Otherwise the NAS is constantly active, noisy and possibly overheating.