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cifs-utils
0008-mount.cifs.rst-more-cleanups.patch
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File 0008-mount.cifs.rst-more-cleanups.patch of Package cifs-utils
From 06503ef4490a3dde4e8297cf1c5cb336ba43aafa Mon Sep 17 00:00:00 2001 From: Aurelien Aptel <aaptel@suse.com> Date: Wed, 8 Aug 2018 11:38:16 +0200 Subject: [PATCH 08/10] mount.cifs.rst: more cleanups * remove duplicates (netbiosname, rdma) * remove snapshot * document nostrictsync, domain, domainauto better * point to vers= when talking about version requirements * typos Signed-off-by: Aurelien Aptel <aaptel@suse.com> --- mount.cifs.rst | 61 ++++++++++++++++++++++++++++------------------------------ 1 file changed, 29 insertions(+), 32 deletions(-) diff --git a/mount.cifs.rst b/mount.cifs.rst index 13b3a1e..3504477 100644 --- a/mount.cifs.rst +++ b/mount.cifs.rst @@ -138,25 +138,20 @@ port=arg try to connect on port 445 first and then port 139 if that fails. Return an error if both fail. - netbiosname=arg - Specify the client netbios name (RFC1001 name) to use when attempting - to setup a session to the server. Although rarely needed for mounting + When mounting to servers via port 139, specifies the RFC1001 source + name to use to represent the client netbios machine during the netbios + session initialization. + +servern=arg + Similar to ``netbiosname`` except it specifies the netbios name of + the server instead of the client. Although rarely needed for mounting to newer servers, this option is needed for mounting to some older servers (such as OS/2 or Windows 98 and Windows ME) since when connecting over port 139 they, unlike most newer servers, do not support a default server name. A server name can be up to 15 characters long and is usually uppercased. -servern=arg - Similarl to ``netbiosname`` except it specifies the netbios name of - the server instead of the client. - -netbiosname=arg - When mounting to servers via port 139, specifies the RFC1001 source - name to use to represent the client netbios machine name when doing - the RFC1001 netbios session initialize. - file_mode=arg If the server does not support the CIFS Unix extensions this overrides the default file mode. @@ -171,11 +166,14 @@ ip=arg|addr=arg rarely needs to be specified by the user. domain=arg|dom=arg|workgroup=arg - sets the domain (workgroup) of the user. + Sets the domain (workgroup) of the user. If no domains are given, + the empty domain will be used. Use ``domainauto`` to automatically + guess the domain of the server you are connecting to. domainauto - When using NTLMv2 authentification and not providing a domain via + When using NTLM authentication and not providing a domain via ``domain``, guess the domain from the server NTLM challenge. + This behavior used to be the default on kernels older than 2.6.36. guest don't prompt for a password. @@ -249,7 +247,14 @@ cache=arg default is ``strict``. nostrictsync - Do not flush to the server on fsync(). + Do not ask the server to flush on fsync(). + Some servers perform non-buffered writes by default in which case + flushing is redundant. In workloads where a client is performing a + lot of small write + fsync combinations and where network latency is + much higher than the server latency, this brings a 2x performance + improvement. + This option is also a good candidate in scenarios where we want + performance over consistency. handlecache (default) In SMB2 and above, the client often has to open the root @@ -359,15 +364,16 @@ sec=arg automatically if it's enabled in */proc/fs/cifs/SecurityFlags*. seal - Request encryption at the SMB layer. Encryption is only supported in - SMBv3 and above. The encryption algorithm used is AES-128-CCM. + Request encryption at the SMB layer. The encryption algorithm used + is AES-128-CCM. Requires SMB3 or above (see ``vers``). rdma - Connect directly to the server using SMB Direct via a RDMA adapter. + Connect directly to the server using SMB Direct via a RDMA + adapter. Requires SMB3 or above (see ``vers``). resilienthandles Enable resilient handles. If the server supports it, keep opened - files across reconenctions. Requires SMB2.1. + files across reconnections. Requires SMB2.1 (see ``vers``). noresilienthandles (default) Disable resilient handles. @@ -375,16 +381,12 @@ noresilienthandles persistenthandles Enable persistent handles. If the server supports it, keep opened files across reconnections. Persistent handles are also valid across - servers in a cluser and have stronger guarantees than resilient - handles. Requires SMB3 or above. + servers in a cluster and have stronger guarantees than resilient + handles. Requires SMB3 or above (see ``vers``). nopersistenthandles (default) Disable persistent handles. -snapshot=time - Mount a specific snapshot of the remote share. ``time`` must be a - positive integer identifying the snapshot requested. - nobrl Do not send byte range lock requests to the server. This is necessary for certain applications that break with cifs style mandatory byte @@ -396,7 +398,7 @@ forcemandatorylock extensions. Always use cifs style mandatory locks. locallease - Check cache leases locally instead of querying the server. + Check cached leases locally instead of querying the server. sfu When the CIFS Unix Extensions are not negotiated, attempt to create @@ -425,11 +427,6 @@ echo_interval=n If this option is not given then the default value of 60 seconds is used. The minimum tunable value is 1 second and maximum can go up to 600 seconds. -rdma - Use to connect to SMB Direct, only applicable when specified with - vers=3 or vers=3.x. - Here 3.x can be 3.0, 3.02 or 3.1.1. - serverino Use inode numbers (unique persistent file identifiers) returned by the server instead of automatically generating temporary inode numbers on @@ -471,7 +468,7 @@ nouser_xattr support it otherwise. The default is for xattr support to be enabled. nodfs - Do not follow Distributed FileSystem referals. IO on a file not + Do not follow Distributed FileSystem referrals. IO on a file not stored on the server will fail instead of connecting to the target server transparently. -- 2.13.7
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